I have a amama a/c ptc153b50am works well but

Is the hot water Faust turned on also the filter in the end of the hose connected to the hot water may be plugged with lime or sediment

The heater relays on the circuit board are famous for going out in this model.. Can purchase circuit board for about $100 or individual relays for about $4. Have to solder them in.

The heater relays (little black boxes marked "heater 1" and "heater 2" on the circuit board are known for going out. $100 will buy you a new circuit board, or you can order the relays from Digi-Key for $4 apiece if you are willing to solder them in yourself.

Have an identical unit. Replaced the heater core which has built in limit switches. Didn't fix. Finally fixed it by replacing the heater relays (small black boxes soldered into the circuit board). Can purchase at Digi-Key online for $4 apiece or buy a new circuit board for about $100.

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

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heatman101

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!!

prob fixed,

AMP TEST THE HEAT ELEMENTS , SEEM LIKE A BAD ELEMENTS

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.