The KFM Blog

The KFM Blog

Welcome to The KFM (Kung Fu Maintenance) Blog! A place for you and friends to add knowledge and understanding of how things work. How to maintain plus how to repair. The site is set up for a nice quiet read. The videos can be played out loud or muted for added detail. Along the right side you will see a listing of all articles written with new articles being added regularly.

The articles and videos are composed to help you learn and understand some of the best ways and the different factors involved in repairing appliances, washers, dryers, swimming pools, spas, tools, air conditioners, electronic entry gates, household items, cell phones, computers, and much more. Everything to do with maintenance. To make repairing things fun and make life more enjoyable. The KFM Blog is out to help with understanding the different aspects of needed repairs to save you money if you do need to hire someone else.

This site has special advantage for those learning or wanting to improve their english as the articles can be easily translated by clicking on the appropriate language selection on the right side menu. There you will find two different translation services. Use which ever one produces better results for you. This site you might share with those you know who are wanting to better themselves in the maintenance field (Air Conditioning, Swimming Pool Service, Hospitality, Hotel Industry, Building Maintenance, Housing, Janitorial, etc…) by improving english understanding, speaking, and skills at the same time. This is also useful for those in foreign countries who attend to english speaking customers who want to improve their level of service through better understanding. The site can also be useful in reverse for maintenance techs who want to service in foreign countries as they can translate articles into the language they are trying to learn.

Thank You for visiting, reading, and watching. I hope you get a lot out of The KFM Blog,
sincerely,
Kung Fu Maintenance

How To Replace Diverter Valve ~ Compression Style Tub To Shower Blog

00:13
This is how to replace a diverter valve on a compresion style tub set up
what you want to do is turn your diverter so your water drains down into your tub spout
00:17
You don’t have to turn off your water but you do want to make sure that the water
00:21
is drained from your shower head so that’s why you are
00:23
putting it down to your tub spout what you need to do is remove your index button by putting the knife
00:28
underneath there. This one has a
00:31
philips screw to remove the
00:33
handle.
00:35
And it’s a good idea to plug your toe stop
so you don’t loose your screw down the drain.
00:41
Next your going to undo your escuteon just a little bit. And than you can twist out
00:47
the sleeve like so
00:49
with the escuteon.
00:52
And you don’t want to grab it
on the ends because you don’t want to damage the threads especially on the ends.
00:57
Now this exposes our diverter valve. What you want to use is a deep socket set and slip that over the
01:03
body and than if you have a piece of laminated
paper or even a piece of paper. What you can do is
01:09
insert that into your hole.
01:15
And that way divert any water that, leftover water that may come out from the hole.
01:25
There is probably not really any water left
01:27
in here because
01:33
the deal is turned off but anyway just in case
01:42
01:45
almost
01:48
there
01:51
01:53
And theres the old diverter valve and the washer. Were also gonna look to make sure this little flat washer came with it
01:58
take a peek inside there
02:02
to make sure everything is out of there which it is
02:05
prepare our new diverter valve
02:08
theres our old one. You can see our new one has the same washer
02:11
the same washers here
02:14
and were going to want to finger tighten the sleeve and then we’re
gonna want to wrap teflon tape around there.
02:18
Now you really don’t have to
02:21
but I recommended it in that it will make it
easier to remove it
02:25
in the future should you need to.
02:28
And the best way to wrap teflon tape is like so, with the teflon tape at the back
02:35
hold it on with your finger
02:39
skip the first one or two threads
02:42
to avoid cross threading
02:45
if you need to twist it a little bit
02:48
so that you can skip the first
02:51
one or two threads you can do that
02:54
and you are just going to go three or four turns around.
02:59
Give it a nice coating of teflon.
03:02
It’s kind of funny teflon
03:03
pans are what we cook with, so, that shows you
03:06
that it keeps the food and everything
from sticking against there
03:10
same principle here makes it easier to
03:13
remove in the future
03:15
but it also
03:16
fills in any regular gaps in the material. Undo our diverter valve all the way. You can see
03:21
how it pushes this out.
03:23
And this is why this is a compression style diverter valve. It has got a bibb washer here.
03:28
You can rebuild these if you need to by replacing the bibb washer
03:31
as well as
03:33
replacing the sleeve
03:34
washer that’s inside here
03:38
That’s another story.
03:41
I will have to make a video on that one someday. For now this
03:44
is replacing the whole deal
03:46
and these are almost cheap enough to replace the whole deal.
03:50
Anyway, here goes. Insert it nice and easy
03:54
and hand turn it in to
03:56
avoid getting it cross threaded feel for it
to make sure everything is good there.
04:02
Slip our deep socket
04:04
over the top and tighten it up nice and tight. And go a quarter turn past tight.
04:18
There we go.
04:20
Nice and snug there.
04:22
And now we are ready to test it for any leaks.
04:24
So I am going to unclog my drain for a minute.
04:28
And I am going to go ahead and turn the water on,
04:30
and look inside there.
04:33
And we are going to try to set it on the tub
04:35
portion.
04:37
So that it goes into the tub. So here goes.
04:39
Everything is working like it should and we are going to look for any leaks inside there. And feel around inside there. It looks like we are good. No leaks there. Everything is working like it should. So now peaking in there, I’ll aim my shower head away, I am going to switch the diverter to the shower portion.
05:08
That is to the shower portion and everything is working like it should.
05:12
Switch it back to the tub.
05:16
And we have no leaks there. So were good there.
05:19
Resetting our faucet handle.
05:21
We are just going to spin the sleeve back in till it
05:24
tightens all the way up.
05:26
And we want to make sure this sleeve tightens all the way down
05:30
into the handle. And we’re good there.
05:34
Than we can go ahead and tighten the escutcheon.
05:39
and this is a good point to clean
05:41
up our escutcheon here. And we are going to make sure the rest of our escutcheons
05:46
are tightened up nice and good. So that everything seats against the tub enclosure.
05:52
And than we’re ready to insert our handle.
05:53
Tomorrow I am getting some
05:56
new handles so this
handles not going to be the prettiest handle in the world.
06:00
I will be replacing it tomorrow so no big deal here.
06:03
Just going to show you how it is done. And than the diverter gets set down. That way
06:07
when we turn on the water it’s showing that it is going down into the tub spout. And when we turn it up for the shower it’s showing that it is going up to the shower. That’s how to replace a diverter stem for a compression style fitting.

How to Charge An Air Conditioner Low On Freon Through Suction Side Real Time Blog

00:04
Alright, got a pretty old unit well got a unit low on freon.
00:07
You can see one of these
00:09
energy
00:11
uh…
00:11
devices that turns off the AC on the front of the unit some of the electrical companies out here in California
00:17
hook these up so they can turn the
00:19
unit off at peak hours and than they pass on a little bit of uh… energy
00:24
savings to you, give you a cheaper rate on your
00:27
air conditioner. This one is actually
00:30
mounted on the service door.
00:36
Anyway I am gonna take this door off.
00:41
And I have got a unit that is low on freon.
00:44
It is not cooling so.
00:50
At least not cooling very good anyway.
00:58
Get into this and than
01:00
I’ll go downstairs
01:02
and turn the unit on
01:34
01:36
01:42
Get the door here. Put this off to the side. There we go. Let’s see what is going on here.
02:01
I am going to go ahead and get my
02:02
gauges set up here.
02:05
And than charge this up here.
02:09
My gauges are not in the best shape especially the high side so I am just going to be charging it up through the low side today.
02:17
It’s time for me to order some new gauges.
02:24
Right here is our service line hook up.
02:28
And what you want to do is make sure
02:32
the valve is off
02:33
up top here
02:34
on the low side and the high side. Ok
02:41
Now remove my schrader valve cap and listen for any kind of hissing.
02:44
To indicate if there is a leak.
02:50
And it seems Ok.
02:56
And it’s got these quick connect fittings. You always want to use these quick connect fittings.
03:01
You really want to wear gloves to but since i’m just going through the high
03:08
side. Not so bad I mean I’m just going through the low side. It is not so bad on the low side.
03:11
A little bit worse on the high side.
03:14
Ok now that the
03:16
line is hooked up there we want to make sure that we purge any air
03:23
from the lines.
03:24
And than I will go ahead and hook up the middle yellow line to our refrigerant can.
03:34
Up top here.
03:44
And again
03:47
got a
03:49
quick connect
03:51
up here. You don’t need a quick connect up here on the
03:56
middle line as much
04:00
because you can turn the refrigerant off here.
04:06
But anyway I have one on there so.
04:11
And were going to open our can of refrigerant here.
04:14
and this is R-22. Ok.
04:23
Here we go and than purge our line here
04:24
So I am just going to crack it.
04:26
Let a little bit of refrigerant out. And now we are ready to charge it. So I am just going to open it for a second and than go down and turn the unit on so we can charge it.
04:39
Yeah it feels like it is low so. Ok I am going to run downstairs.
04:42
Be right back.
04:49
05:43
Ok. So were on now. Everything is running good.
05:44
The fan motor is running.
05:46
The compressor has kicked on.
05:48
And
05:50
you can see this is showing like only ten pounds of pressure.
05:54
Not too good.
05:55
Definitely low on freon so.
06:00
Oh yeah. Sounds thirsty. So I was working in this unit yesterday
06:05
and noticed the air conditioner wasn’t cooling so I knew I needed to get up here today.
06:12
Get up here early before it gets hot.
06:15
Here is the accumulator and it is starting to get cold
06:20
It is cold about half way up
06:24
Anyway I am just going to be doing this one by feel
06:27
Because like I said my gauges
06:28
are kind of on their last leg.
06:30
Time to replace them.
06:33
See how loose that is I mean this could be tightend up but
06:37
also the needles are kind of bent and the caps
06:40
are starting to fall off
06:43
so time for some new gauges
06:47
but these are a cappilary tube system and
06:48
the nice thing about a capillary tube system is
it is a lot more forgiving than other systems
06:52
It can actually, you would have to actually really kind of try to
06:56
overcharge these
06:59
Anyway once it is nice and cold here on both sides of the accumulator than I know that it is going to be good. So I am just going to
07:07
Wait until this flashes nice and ice cold.
07:10
And like I said if I
07:12
put a little bit of extra refrigerant in
it is going to be okay because it just holds it in the pot.
07:17
And the way the capillary tube system works is
07:20
It is a fixed orifice so
07:24
It only allows so much refrigerant through at a time
07:30
you know if you’re a little bit
overcharge it is not like it
07:32
lets more refrigerant through.
07:34
It just stores it here and lets it go through.
07:37
As long as you are only charging
07:39
with vapor.
07:42
you don’t want to flip your can over and
charge it with liquid because than the liquid might
07:46
stay in the lines
07:47
and can actually cause liquid slugging of the compressor
07:54
You can probably hear the refrigerant
07:56
going into the system
08:02
You can hear the change now as the pressures are starting to get
08:05
balanced and get more closer to where they
08:08
should you can
08:10
hear the sound difference less and less
refrigerant is being
08:14
suctioned in as it starts to climb.
08:35
We definitely have a leak somewhere. Possibly here at the schrader valve.
08:40
Which is where you usually get your leaks. You can kind of see some signs of moisture or oil right there. I am kind of guessing it is from the schrader valve. I will pop it off and take a peak inside the high side.
09:06
You can hear the pressure difference now of the refrigerant going in is a lot less than when we first did this. And it doesn’t seem to be leaking from the schrader valve so I will go ahead and tighten that back on.
09:25
What I have is a leak repair additive that I can add to the system because this one it has been good the whole summer. It hasn’t gone low on refrigerant or anything so it has just got a tiny micro leak in it somewhere. Those additives are kind of good for that as long as there is no moisture in the system. Ok and feeling my line it is still not cold. It is kind of warm. And we can check what our pressure is at here. I’ll try to get the camera to focus a little bit. There we go. We will go ahead and turn the hand valve off.
10:21
See where were at. Were at about about 40 pounds pressure there
10:23
and on the green dial were only at fifteen so
10:26
we got a ways to go. You can probably hear it I am going to turn it back on.
10:47
I hear a lot of people don’t like these Janitrolls to much, but
10:50
they are pretty easy to work on. Pretty simple.
10:57
Maybe I’ve just gotten used to them.
10:59
Been out here for a while so.
11:16
The kind of nice thing about only
11:18
charging through the low side.
11:19
If you are using the high side you can get
11:21
more of an accurate
11:23
reading of what your refrigerant levels are at
but the nice thing about only using
11:26
the low side
11:28
is it is actually
11:29
going to release less freon
11:31
into the air
11:32
into the atmosphere
11:33
when you purge the high side
11:35
it lets a lot more freon out
11:38
and you know the high side is your liquid side so when
11:42
you disconnect your hose after your finished
11:45
and you have to release that
11:46
freon that is left in the hose
11:48
all that liquid refrigerant is in there
11:54
your having to release all that
11:56
but this just going through the low side
11:58
it’s releasing a little bit less freon. I am sure some people disagree with me on that but that is Ok.
12:20
anyway when you work with refrigerant long enough you
12:24
probably will reach some day where your
12:27
gauges really are not working properly
12:29
and you are going to need to be able to charge the unit by feel
12:36
or by temperature
12:37
and the other way we can check this is
12:39
check for the fifteen to twenty degree split inside the unit at an incoming and an outgoing register.
12:47
I have a video on that if you want to see that I can put the link on this video.
13:02
Its starting to get there.
13:04
It is starting to feel a little colder down here. Allright.
13:13
Up on the roof top in
13:15
Palm Springs here.
13:17
Give you a little view around. Look around.
13:19
While this thing charges up here.
13:22
Pretty nice up on the
13:24
palm trees here.
13:27
My palm trees are due for some trimming.
13:30
Got a lot of dates on them.
13:34
Pretty good dates to.
13:36
I have snacked on a few.
13:45
If you look around you can see the mountains over there.
13:52
Its a nice cooler day.
13:53
It has actually cooled off out here now.
13:55
This Summer was a little bit milder.
14:00
I think the hottest it got was about one nineteen, something like that.
14:04
I remember a few days where it was a hundred and sixteen. Those were pretty warm.
14:08
but I have had other summers where it has hit as high as a hundred twenty seven degrees and
14:14
so this Summer was pretty mild.
14:16
I got away easy.
14:21
I went through and well
14:24
we preventative maintenanced
14:26
the heck out of our air conditioning units to make it a better summer so. We had a much better summer.
14:43
This can take some time.
14:45
There is a couple ways to speed the charge.
14:51
With the compressor being low on freon
14:53
the freon helps cool
14:54
the compressor and
14:56
with the compressor being low on freon the compressor starts to get pretty warm.
14:59
If you have an ice pack you can put that on top here and that can speed the charge. Or some really cold water so I have got some really cold water. And I am just going to pour it on here. Avoiding the electrical contacts obviously. And that helps speed the charge a little bit. Its starting to get there.
15:44
Ok, once I am all finished I will have to follow this up with that leak additive. To seal of any leaks here.
16:02
See this line down at the bottom of the compressor
16:04
kind of funny
16:05
it is actually a heater. It heats up the bottom of the compressor.
16:13
And that helps it when it first starts to be in kind of the right condition for starting the compressor.
16:38
Right here is a filter drier.
16:40
You can see the arrow
16:42
pointing this way.
16:45
On a heat pump the arrow will point both ways because a heat pump has
16:52
a reversing valve where it changes the direction
where as here the condensor is removing heat from the unit.
17:03
and at the evaporator it absorbs heat. On a heat pump it can switch to where you know the
17:11
evaporator was absorbing heat and the condensor giving off the heat
17:14
on a heat pump it can switch back to where now the condensor becomes the evaporator
17:21
And the evaporator becomes the condensor. They switch roles. So you can heat your unit with a heat pump or you can cool your unit. Heat pumps are a lot more sensitive about the charge.
17:36
Your charge needs to be a lot more accurate where as like I was telling you these units have capillary tubes so they are a lot more forgiving. It’s getting there. Drink a little water myself.
18:04
Give you another shot of Palm Springs here.
18:10
The mountains there.
18:15
There’s a tram that goes all the way to the top of the mountain up there. I guess there is like a cafe
18:20
stuff like that.
18:22
I’ve been out here like eight years
18:23
I still haven’t been up there.
18:25
Some day maybe.
18:27
Or not
18:35
A bird is snacking on some dates there. Happy campers. Alright see how we’re doing here. It’s getting there. It just takes a little time.
19:07
This unit seems to be in pretty good condition
19:09
for being twenty six years old. Still kicking. Still kicking out the cool air. Getting there.
19:31
This is an accumulator
19:37
it helps prevent liquid refrigerant from getting to the
19:39
compressor and slugging the pistons.
19:49
A lot of units these days don’t have these on them some of the heat pumps have them inside the unit.
19:57
These ones have been done outside. It seems they went to
20:01
some extra steps to preserve these units. This one doesn’t have it but on
20:11
some of these other ones they have got a like another safety device this one has been taken out like on the high side it’s got a little piston in it as a protective shut off.
20:26
See if one of the other units has it. I will show it to you here. This one no.
20:33
20:35
bring you over here as this takes a little time. Wow all these units are gone.
20:40
Looks like they took them out on this whole roof.
20:43
Maybe I am not going to get to show you.
20:48
20:51
Here is one. See right here this deal.
20:56
Not exactly sure what you call this exactly.
21:00
Maybe somebody else can tell me.
21:04
And exactly how it work i’m not
sure either i think it has just like a
21:07
piston that
21:09
cuts off the flow if something’s
wrong. If there is something wrong in the
21:13
system.
21:14
Something a little bit more for me to learn about.
21:17
There is always more.
21:20
Anyway go back to our unit over there.
21:32
You can see these service mats.
21:35
You always want to do your
21:36
refrigerant work,
21:38
your air condition work, on the mats.
21:40
Especially if you are changing a fan motor or putting in a new unit. You don’t want to put any chunks in the built up roof material. Anyway it is getting colder. Were not there yet.
22:43
Disconnect box is over there.
22:45
Kind of funny story I heard of some places
22:47
where the disconnect
22:52
they had people stealing all the units. They were stealing air conditioning units.
22:57
Some rougher areas
23:01
have to do some drastic methods but anyway.
23:03
I heard about where they, what they did
23:05
was they bypassed the disconnnect
23:10
so that if you wanted to
23:11
turn off power to work on the unit you would have to go into the unit itself and
23:16
turn off the breaker.
23:19
It is sort of like an electric fence
23:21
I was thinking about it is kinda like having an electric fence
23:24
a deterent for people stealing units, stealing refrigerant, and
23:30
stealing the entire units.
23:32
and by having the power where you can’t
23:34
disconnect it
23:37
they were less likely to take those
23:42
and they were stealing the disconnects and all that kind of stuff too so
23:45
there is some rougher areas out there that call for some
23:48
drastic measures
23:49
not not the norm
23:53
but in those situations
23:55
people have to get creative.
23:56
Have to do something different if there is a
23:59
rough area. Alright it is getting nice and chilly now. Still got a little ways. Might put a little more water on the compressor here. Try and speed this up.
24:42
I can feel it flash alot, you know, after I put the water on.
24:47
And than I feel it right here. At the unit it just
24:49
seems like all of a sudden it draws a lot
more refrigerant in.
25:07
It’s starting to flash nice and cold now. We are almost there.
25:24
Now I don’t know if you can see it so much in the camera but you can start to see
25:29
a little bit of sweat on
25:33
on the line.
25:49
As this gets colder. Not completely there yet but we’re real close. This is the little high side line to the compressor.
25:51
You want to avoid
25:54
touching that especially on that end.
25:56
I mean back here
25:57
this part of it it is not so hot.
26:00
But right there it is really hot. I have burned my arm lots of times by accident. Touch that aghhh tshhh. Looks like not the best soldering job down there but definetely not the worst I’ve seen.
26:27
This kind of looks like a newer compressor to like this isn’t the original
26:30
compressor. I’m just guessing. Like it was replaced at some point. Augh yeah we’re getting nice and chilly.
26:49
Chilly, Chilli.
27:22
The final test again is going to be checking for the fifteen to twenty degree split inside.
27:32
But it’s gonna happen. I have done enough of these to know
27:37
the way it is. Were good now. Nice and chilly.
28:13
Can’t trust my gauges. They are just too old. I gotta get some new gauge heads. See how it is showing
28:24
twenty five
28:26
on the green dial.
28:30
Fifty on the pressure. Nice and cool today. Man, what a difference it makes. I think it is supposed to be like a high of 81 today, 85, I am not too sure, but it is nice now. Probably about seventy six degrees outside. If feels good. Nice day.
29:47
Ok, we are there now. Nice and chilly. So I am going to go ahead and turn off the line here. And than disconnect the line. Listen for any leaks there. And everything is Ok. And than
30:11
make sure we put our schrader valve cap back on.
30:14
That is like our second gate to keep the refrigerant in the system. I like to do them a quarter turn past tight with my pliers. Not to crazy, just crazy enough. So there we go.
30:31
We’re good there. Come up here,
30:36
and turn our refrigerant can off.
30:42
Disconnect our hoses.
30:46
30:49
Than we have to release the refrigerant
30:51
from the line. We don’t want to leave it
30:53
stored in there. Unless I was going to go and charge another unit right away which I am
30:57
not.
30:57
So I am just going to go ahead and release it. There we go, and now its out. That one too. The middle one also.
31:08
Like I said if we had the high side hooked up than when we
31:10
release it you would
31:13
see it just shhh
31:14
spraying out like a white mist come out
31:20
a lot more refrigerant gets trapped
31:21
in that line.
31:22
And that’s kind of the advantage in only hooking up the high side (I meant low side).
31:26
really the more accurate method is to hook up the high side but anyway.
31:31
We are good here. Alright.
31:37
Subscribe so you can get some of the
31:40
be the first to get some of the new videos when I
31:43
put new videos up.
31:45
I will try to make some more good videos for you.
31:46
I’ll see you out there.
31:49
Ok so here it is inside the unit. It has already dropped to
31:53
seventy five
31:54
I think that it started around seventy eight seventy nine.
31:57
Something like that.
32:04
And the air feels nice and cool coming out of the vent. Lets go back here to
32:13
where the evaporator is. The air handler right here.
32:19
And just like on the roof, the low side should be nice and chilly all the way to right here.
32:25
And it is. Nice and chilly.
32:26
You can see it. You can kind of see it starting to sweat. You can see on my finger. For a second
32:35
how it’s like moisture.
32:37
So that is why we have got the insulation here.
32:40
So oh it’s nice and chilly.Perfect see it there the moisture on my finger. There we go. We got our condenstae drain. The drain vent
32:51
Right here alright. Good old hydronic supply lines.
32:58
Good to go.

How To Fix Or Secure Loose Electric Range Hard Wired Surface Burner Elements


00:16 okay today I’m going to be showing you how to secure
00:21 a loose surface range element
00:23 a loose surface range element right here what it should have is a set screw
00:27 underneath
00:30 as you can see this one is just floating around freely
00:31 and that’s not good.
00:33 this ones missing the screw I was able to find
00:36 another one that I had salvaged from another unit
00:40 anyway, this one just screws in here
00:45 in the little screw port here
00:46 and once you get the screw started,
00:49 you can see the two teeth there
00:51 just get anchored up and underneath
00:57 right here
00:58 and than tightened down
01:03 like so
01:05 you can also use a nut driver but this is where a six in one comes in real handy so you can
01:10 get in there
01:11 and tighten it down. The next trick with
01:15 these is to make sure that the range pan
01:18 goes below.
01:21 You can see here the ring goes on top
01:23 and the pan goes below.
01:26 Sometimes these are a little tricky to set
01:28 doesn’t want to sit down so I was able to set that one down a little bit better.
01:33 Slip the pan underneath first, and than the ring on top.
01:41 Like so.
01:42 And we’re all set there.
01:47 Again that can look a little bit better.
01:49 Let me
01:52 lower this down
01:54 just a tiny bit.
01:57 Sometimes you will have one of these that is a little bit stubborn to get it to seat nice and flush.
02:11 There we go now that is nice and flush.
02:13 Good to go anyway that is how to secure a loose
02:16 range element. Now this will still move around a little bit
02:20 which is ok, but at least it is anchored in there.
02:23 and behaving the way that it should.
02:25 Ready to go.