Question about Heating & Cooling
Pull the PTAC out and check the fan near the radiator coils. I have had a lot of problems with the fan getting out of balance and rubbing on the plastic shroud that funnels the air in. Over a prolonged period of time, it will also cause the fan to break down...
Posted on Nov 29, 2012
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Posted on Jan 02, 2017
Sounds as though the power cord reset switch might be bad and need to be replaced. If not, then there is a short somewhere in the system. Do an ohms test on the switch to determine if it is bad.
Posted on Mar 17, 2009
This is the link to find the manual for your unit. Make sure the model number is correct. You should be able to find the info you are looking for if it is possible to disable the energy saver. Hopefully this will help.
Posted on Mar 21, 2009
the compressor is controled seperately from the fan, this is done with the thermostat, try turning the thermostat on then of or untill you hear the "click" sound from the thermostat. If the compressor is still not turning on this may be more than you can fix if your not familiar with electrical hvac troubleshoting... more than lilkely the thermostat may be bad, or your compressors starting components are failing...if the compressor is comming on when the unit is turned on you could have a freon leak causing no heat. hope this may help some there is just too much to write on the causes this will give you a start though!!
Posted on Jan 18, 2010
I have a Amana PTAC Model PTH153A50AC with the DigiSmart upgrade kit (DSUK01B) which as of last night stoped generating heat. I tried the Diagnostic and got a "LF" displayed. But I find no reference to what LF means. HELP please. Also I looked but can't find a reset button either.
House without heat
Posted on Jan 31, 2010
Was the board exactly the same as the one you took off? Even if it was go back and check your wiring. That would be the first place to look since the board was all that was changed.
Posted on Jun 10, 2010
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Take the buttons off of your unit and remove the board cover by taking out the 2 screws on each side holding it in. You will See on the right hand side of the board 4 post specifically , 2 for your indoor thermistor and 2 for your outdoor. unplug your inddor from the board ( make sure power is off) and there should be a plate you can remove on the front of the unit on the right hand side of your evaporator coil , remove this and disconnect your thermistor from the coil (should snap right off ) pick up a new thermistor and just slide it right back in.
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