20 Most Recent Dometic 57915531 Air Conditioner - Page 4 Questions & Answers

That's indication that the system is low on freon.

The 20 amp will be sufficient, you'll just need an adapter to match to your plug.

Hi,
The compressor is not always starting...sometimes it tries but does not start...
It could be a capacitor and relay problem... or the compressor could be going bad...
Change the capacitor and start relay first and then see if that gets it going...

Here is a tip about trouble shooting your air conditioner...

Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101

hello
you may want to clean the ac coil with a mixture of bleach and water.

Spray directly on coil,let sit for an hour then rinse with water.

Hello,

Since the breakers and the fuses as been check and they are not defective, the problem is most likely from the control board in the furnace that is causing the problem, do you have the reset instruction for the remote? you will have to take the intake cover off the A/C to get to get off the box, while you have the cover off, check the wires that connect to the the circuit board to see if any is damaged because this could be damage that is why the led light is not coming on.

Take care.

if you tried direct power and still nothing then your fan needs to be replaced . there should be a a/c supply store near you . get the model - serial number on the fan or the unit itself to get the right fan for your unit . hope that helped

The heater should be in the opening high enough to allow cover to be back on as it was. Please double check your mounting instructions.

Looking up at your unit, after you have removed the cover, there is a square whole maybe 5 x 5 on the corner should be two holes at a diagonal. That should be where it screws in.

Hi, the heat strips that come with different units mount in different places. I am surprised they didn't send you instructions on how to mount it. It has to be mounted in the air stream after the supply fan. You should have a diagram on your unit either inside or on the out door unit that may be of help. If you can see where it plugs in, you should be close if they sent you the right strip kit. What I would do is get the model, serial, and name of unit and the information off the one they sent you and if you haven't figured it out by what little I have told you, call them and ask.They should be able to pull a diagram up on there computer and tell you with in a few minutes and if they sent the right one. Use there 800 number or if not, have them call you or reverse charges. Let me know how this goes. On most all units that I have installed kits in, it was very easy to find where they lay in the air stream. You may have the wrong one, just a thought. Please keep me posted.
Sincerely,
Shastalaker7

may be a dead start cap

Should mount in front of the fan blade and in back of the evaporator coil. There should be a space there for the installation

Dave

two things that may be the problem. 1. there may be a clog in the metering device in the unit preventing the freon from ciculating through the unit. The repair for this is to evacuate the freon from the unit and have the meter ing valve replaced (an a/c tech can do this for a minimal charge). 2. the unit is low enough on freon to prevent cooling but not cause the compressor to go into thermal overload.
I would have the freon level checked before I went any further

Good luck hope this helped

Dave

The local Dometic Tech located two wire that had loose conection and had burnt out , there was a real fire risk. I am unable to9 expand on where they were but maybe owners should check any units more than 12 months old that have had resonable use.
Thanks for the help

The fan motor is replaced outside. I think you have a start capacitor failure. You might want to try replacing that capacitor before you replace the motor.

Sounds like the compresser is bad,I have seen a freon overcharge also do this-but it is rare.

moter or compresser pulling to many amps on start up you can purchase a hard start kit and also you can ohm out blower moter you could also have a direct short althoug not likly

clean the coils with acid [foamagator] oil the fan motor. click the fan and pay close attn to see if it changes. the blower switch may be bad. if you here it change speeds , you may need to put freon in it....good luck sawdust46

it may be the capacitor or needs oil or bad motor.

If the unit is ducted, the part number for the return air grill is 3107867.008. If it is manual control the part # is 3107206.009.

The first thing to check is incoming 120VAC power to the unit. This voltage must be 115Volts domestic USA with no less than -10% allowable. If your voltage is below this point, the unit will not work. If your voltage is ok, check the thermostat or selector switch. Make sure that the thermostat (if wall mounted) has 12VDC running to it. If it does not, fix that problem first. If it is manual control, check the selector switch for ok. You should have incoming 120VAC power to the switch and when the High/Cool is selected, check the following.

Terminals LI and C, and L1 and 1 should have continuity. If not, replace selector switch.

Hope this helps,

Jeff