Where can I obtain a wiriing diagram or schematic diagram for an Amana Model PTH123B35AJ heater and air Conditioner unit

This is a heat pump so the problem could be anything related to the compressor, refrigerant circuit, etc. or the defrost control. There is usually a switch or screwdriver slot switch on the front of the unit when you take the large cover off. This will force the auxilliary heat on regardless of outdoor air temp, thus bypassing the compressor heat pump system (and costing you more to operate it.)

Hello, if you are getting 24 volts at the contactor coil and it does not energize the coil than the contactor must be replaced. If there is no voltage at the contactor coil then the problem could be with tne tstat or the low voltage wiring.

Try Valley of the Sun. They generally have parts and accessories for most Amana units.
http://www.valleyofsun.com/

http://www.dnmech.com/lit/RT6331003.pdf
try this web site. I believe this is the manual you are looking for.

Hope this helps.

bottle of nitrogen with a blower attachment.do use water.if will stuff it

Air should be blowing out the top, if not, need to check wiring to fan

call the amana dealer nearest to you order one

1.check heatar of unit.
2.wireing of heater.
heater not workink.
thermostate also check

pull cover off unit to expose the coil fins. on right side there may be a switch that turns with a screw driver that switches between heat pump and elec. heat. we use this to stop the heater from dripping water in the winter, for some people