Question about Amana PTC153D35AR Central Air Conditioner
I have a heat pump that the outside unit sometimes doesn't engage the compressor. I have taken the panel off and it kicks on, on one occasion others I have had to tap on the contactor. Now I have to engage the contactor manually. By doing this it jumps 4 or 5 times and engages fine for a day or 2 then stops engaging again. Want to get this fixed before I damage the unit.
It can be your power going to the contactor, most likely 24 volts or the contactor itself. If you are not trained and do not have any electrical experience at all seek professional help.
Posted on Dec 23, 2013
Replace old contractor by new one
Posted on Oct 15, 2013
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Posted on Jan 02, 2017
It sounds like your blower is coming on before your heat. With gas if your unit is new enough, typically you have an ignition mode to start your heat process, flame recognition, and then full burners, heating up your heat exchanger, and then bringing on your blower. Your blower maybe controlled by a circuit board, just depends upon age of your system.
Posted on Nov 20, 2007
do you have a totaline t-stat. they and some other brands have a fan recirculation setting in the installers menu.
this is assuming that this happens in addition to the heating or cooling normally
Posted on Nov 22, 2008
When it hums, is it running? Or does it not run when it hums? I'm assuming it runs when you say you have to turn the therm off to get the noise off.. If it's humming and not running, you have big problemo friend..
Posted on Dec 03, 2008
be aware that not repairing this asap that you are causing yourself more problems First I would change out the fan capacitor and see if this could be the problem. Secondly if the capacitor isn,t the problem change out the motor . By continuing to allow the system to cycle like this the compressor will take a dive on you costing more . Good Luck
Posted on Aug 04, 2009
Testimonial: "Yes, it's dual run capacitor problem. I used a stick to spin the fan blades and it starts to slowly spin and up to normal speed, so motor is good."
Have you checked the contactor coil voltage? It should be 24V. It will be the smaller wires either on the top/bottom of the contactor or on the sides of it. Turn the 240 V off prior to checking the low voltage to ensure you do not get electrocuted. If you have voltage at this point, then the contactor coil is defective and you will have to replace the contactor. About 25$ US at most electrical supply houses.
Posted on Sep 12, 2009
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