Question about Amana Heating & Cooling

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I have an Amana RHE30A2B heat pump. I installed a new thermostat, Honeywell, last night and now the coils are not cooling & the unit is blowing hot air. I have double checked all the wiring & everything seems to work as it should. Is there a breaker or fuse on the outside unit that I am not aware of before I call a service man out. We also had an electrical storm last night. It could be a freak thing, but I am still concentrating on the thermostat.

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  • crashea Jun 15, 2008

    One of my kids ran into it going down the hall and broke it. The fan on the outside unit kicks on, but the compressor is not kicking in.

  • crashea Jun 16, 2008

    I found a breaker on the outside unit and reset it. The compressor is kicking on now, but it is blowing hot air. The pipe is almost too hot to touch. The thermostat is doing what it is supposed to do and the compressor seems to be the problem, unless it is just out of freon. I don't think there is much more I can do with it unless you can think of something. I will call a tech in the morning. Thanks

  • crashea Jun 16, 2008

    The service tech was just here. The problem was the thermostat wiring. On the old stat, White-Rogers, there was a wire running to "L". On the new stat, Honeywell, it had to run to "O". Everything else checked out fine. The tech said that, depending on the brand of stat, there is about a 50/50 chance on the way it should be wired. It seems like it would be a fairly common problem, but I did not find anything on White-rogers, Honeywell, or Amana that even gave a clue. Maybe this will help someone else in the future. (Symptom: After installing new thermostat, everything works correctly except compressor is blowing hot air.) Thanks for your help.

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  • Master
  • 859 Answers

Hello,

If you can hear a click or see a light when you turn your thermostat from up to down you do have power there. Or, you can put a meter on your thermostat and see if there is any voltage or not. If not in either case, you can try this if you feel qualified around live power.

Turn off the circuit breaker to your heat pump at your master circuit breaker on the home. Tape that circuit breaker open with red duct tape or regular duct tape and don't let anyone near it while you do the remaining.
Remove the electrical service panel at your heat pump.
Look for a service panel breaker, reset or inline fuse.
Replace or reset if able and see if your heat pump comes back on when you turn your circuit breaker back on and your thermostat is down to 60.
Since you say you had an electrical storm when this occurred I would be surprised that your master electrical panel didn't pop your circuit breaker out to your heat pump. Failing that the service panel on your heat pump should have popped a fuse, reset switch or breaker. Failing all of those, you will need service from your a qualified service tech for your model maker. Your home owner's policy may cover expenses above your deductible. It would be worth a call to your Insurance company should the voltage rectifier circuit on your heat pump have been destroyed by the electrical storm.

Posted on Jun 15, 2008

  • Glenn Rogers
    Glenn Rogers Jun 15, 2008

    I agree with Master Tech on this. Are you qualified to run this down with a meter and replace a cap?

  • Glenn Rogers
    Glenn Rogers Jun 16, 2008

    The fact that your compressor is not putting out cold air does concern me and it is probably not out of freon. That just wouldn't happen from your breaker popping on the service panel. Your compressor may have indeed popped a sacrifical cap or diode to save itself due to the surge.

    One thing you can do for your home, by a licensed electrical contractor is put in a whole house surge protector that mounts at your master circuit panel breaker box.The unit itself sells for around 200 dollars and the electrician can have it installed in an hour. This way it will protect all your electrical units in your home whatever they may be from power surges from electrical storms.

    Regards and good day,
    Worldvet


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  • Master
  • 770 Answers

What casused you to think the thermostat was bad?? Check for power at the compresser and or see if the compresser is running first........If so then feel the freon lines at the rear (outside) ones getting hot if not and the ecompresser is running you have a leak in the system and it is low on freon.

Posted on Jun 15, 2008

  • Gary Davd
    Gary Davd Jun 15, 2008

    You will need to check for power there is a Capacitor also that is tyed into the Compresser check to see if that is ok you need to find out where the power is missing/ Also note since the fans runs you need to see the wiring feeding the compreeser from the control panel

  • Gary Davd
    Gary Davd Jun 16, 2008

    there are two lines the one (small line) should be hot the larger line should be cool almost to the temp of a can a coke you took out of the refrig this line usally has insulation around it. If the they are not and the compresser is running then it is a freon issue I would shut it down unit a tech can check the pressures

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  • Master
  • 1,894 Answers

It may be the fuse that has blown out.

but not sure.

if fuse is out the whole unit wont start i think

Posted on Jun 15, 2008

  • dewan nafees ahmed Jun 15, 2008

    there is a fuse in all kinds of unit.

    and there is a protection circuit for every unit which can prevent the unit from any damage.

    so please make a double check of the fuses.


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