Kung Fu Maintenance discusses the five most common problems with Air Conditioners, HVAC, Heaters, plus Indoor AC House Fans.
0:16 All right today I wanted to go over the five most common problems with
0:19 air conditioners say you go to turn you’re air conditioner or heater on
0:24 on cool or heat and auto and you lower your temperature down
0:28 and let’s say nothing happens. The unit doesn’t turn on the blower doesn’t turn on at all 0:32 first thing you want to check is the breakers.
0:36 It could be a tripped breaker. You often have a breaker for the condenser
0:40 and then a breaker for the fan itself this one is right here
0:44 for the fan. So make sure your breakers are not tripped. Sometimes if they’re
0:48 tripped 0:49 they will trip halfway and when you reset it you need to turn the breaker all the way off 0:52 and then turn the breaker all the way back on.
0:56 Next thing to check is 1:00 the door switch
1:02 often there is a service door switch on the air conditioner heater unit
1:05 it’s usually located right here what you want to do is 1:08 push on this left side
1:10 to see if that will engage that switch. So if you got it on heat or cool and auto
1:14 already. A lot of times that will be the problem
1:19 Sometimes you might need to add a screw. Like this one a
1:22 screws been added to make sure that it is held in place.
1:26 Or you can tape the door shut. 1:27 If you do add a screw you want to make sure that that screw isn’t going to be penetrating into anything. 1:31 Like any tubing or anything like that 1:34 such as any refrigerant tubing behind it you want to make sure you pick a place 1:38 that is good and you don’t want a screw that is too long you don’t want it to poke into anything that 1:42 it’s not supposed to. Ok the
1:45 number three most common 1:47 problem with air conditioners. So one we had
1:50 a breaker tripped, 1:51 two, the service door switch
1:54 The third most often cause of an air conditioner not working
1:58 Is inside here if this hatch comes open 2:00 sometimes
2:02 let’s say it wasn’t secured properly it’s got this like a mailbox 2:06 latch
2:07 that latches the door into place an 2:10 if that came open and this hatch falls open
2:13 a lot of times what happens is your evaporator coil will freeze up into a block of ice
2:18 so while you are there you got your filter
2:21 and your filter make sure you have good air flow
2:24 that a lot of times what will happen is that will 2:27 turn to a block of ice and
2:30 you won’t even be able to pull the air filter off of it
2:32 what you want to do is come over here to your thermostat and just turn
2:35 the cool side off and just turn just the house fan on 2:43 so turn the fan on on
2:45 and put the switch here on off that way you can defrost
2:49 the air conditioner and you also kind of want to watch it to make sure your
2:52 condensation line doesn’t overflow
2:56 get built up with too much water from the ice melting so something
2:59 to keep an eye on there but keeping the fan on will help melt the ice faster
3:04 and dry everything out you know get back to normal 3:07 it
3:09 takes a little while and than 3:10 you’ll be able to put it to cool and auto again and you’ll close this door and again if you need to
3:14 you will add a screw or you can add some tape to make sure that its held in place
3:20 and doesn’t come open on you again.
3:22 Number four most common problem with HVAC heaters and air conditioners is a fan 3:26 motor that won’t start. Often you can just replace
3:30 the fan start capacitor. I have a video showing you how to do that, “First Thing To Try” 3:34 “Before” you just run out and 3:36 replace the “Motor” is to try “Replacing”
3:38 the fan start capacitor
3:42 and it’s not truly a start cap it is actually a run cap but replacing that capacitor
3:46 that capacitor helps get the fan started going
3:50 and gives it that initial kick to start without that it can’t start it will just
3:54 sit there and hum 3:55 and sometimes you can even push start it with a pen or something 3:58 you know “very carefully”
4:00 And the fifth most common cause of losing your heating or air conditioning
4:04 is a faulty thermostat so you can click on
4:07 over to my video about how to troubleshoot a faulty thermostat.
4:10 Anyway those are the five most common problems with heating and air conditioning
4:13 that you will come across that will give you
4:15 a no cool or heat call, and I have videos on all of those so you can
4:20 check them out. I will try to put the links here or right on this videos so you can
4:25 click over to watch those. 4:28 And thats 4:29 the five most common problems with the indoor side of HVAC heating and air conditioning.