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Temperzone unit does not start when switched on

A/C is a ducted system, unit is external and controls internal with a thermostat

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6 Suggested Answers

  • 86 Answers

SOURCE: Ducted aircon error code

1. check cirkit board.

Posted on Mar 17, 2008


jumptrout51
  • 3361 Answers

SOURCE: Converting a ceiling control unit to a thermostat on the wall.

Unless the new unit is 24 volt thermostat convertible inside the unit, you will have to use a line voltage(120v) wall thermostat.

Posted on Mar 25, 2009

  • 127 Answers

SOURCE: Compressor starts, but airhandling motor does not

Sounds like you may have a bad fan capacitor or a bad fan motor. Remove the inside cover from the air conditioner and access the squirrel cage fan or, remove the shroud from the top to access the fan that way. Have someone turn the thermostat on as you spin the fan motor by hand. If the motor starts and runs, then you have a bad capacitor. If the fan motor still does not come on, then there are a couple of possible problems.

When you turn the thermostat to fan, do you hear an audible click in the control unit of the ac? If so, then you know that the thermostat is sending 12V to the fan relay on the board.

I think the motor just may be frozen up. Try spinning the motor by hand and see what happens. Again, if it starts, then just lube the shaft points on the motor with some WD-40 and all should be fine. If the fan motor starts and then after the cycle, does not restart, then you definitely have a bad capacitor.

Hope this helps,

Jeff

Posted on Jul 03, 2009

  • 127 Answers

SOURCE: I have a penguin rooftop ducted system with analog

If you have no leds, then you have a power supply problem. I am assuming that you have the Dometic Electronic Control Thermostat with the ribbon cable connection. Check for 12V power at the control board in the air conditioner, Red 12V+ and Black 12V-. Make sure polarity is correct. If you have power there then check the number 1 and number 10 pins on the ribbon. The voltage should be the same. If they are not, then you have a bad control board, not thermostat.

Hope this helps,

Jeff

Posted on Jul 03, 2009

  • 55 Answers

SOURCE: I want to bypass the

I know this is going to sound rude but you I promise I mean it with only your best interest at heart. You should probably buy the proper piece of equipment to do the job, not a window air conditioner for a wine cellar. For one you may burn your house down by bypassing things in an electrical system that were not designed to be bypassed. Second you are going to over tax that little unit and it will not dehumidify properly. Again I am sorry if that sounded rude just be careful and dont bypass stuff because if something were gonna happen mr. murphy will happen at the most inopportune of times.

Posted on Sep 21, 2009

  • 1 Answer

SOURCE: Omega Climate Systems HE60 ducted

I have had exactly the same problem with my Omega HE60. I see this was posted a few years ago; did you end up solving it?

Posted on Apr 28, 2010

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I have a penguin rooftop ducted system with analog thermostat, the thermostat board went bad, so I got a refurbed one, installed the refurbed one, but when I switched it on , no leds, nothing after about...


If you have no leds, then you have a power supply problem. I am assuming that you have the Dometic Electronic Control Thermostat with the ribbon cable connection. Check for 12V power at the control board in the air conditioner, Red 12V+ and Black 12V-. Make sure polarity is correct. If you have power there then check the number 1 and number 10 pins on the ribbon. The voltage should be the same. If they are not, then you have a bad control board, not thermostat.

Hope this helps,

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1 Answer

Compressor starts, but airhandling motor does not


Sounds like you may have a bad fan capacitor or a bad fan motor. Remove the inside cover from the air conditioner and access the squirrel cage fan or, remove the shroud from the top to access the fan that way. Have someone turn the thermostat on as you spin the fan motor by hand. If the motor starts and runs, then you have a bad capacitor. If the fan motor still does not come on, then there are a couple of possible problems.

When you turn the thermostat to fan, do you hear an audible click in the control unit of the ac? If so, then you know that the thermostat is sending 12V to the fan relay on the board.

I think the motor just may be frozen up. Try spinning the motor by hand and see what happens. Again, if it starts, then just lube the shaft points on the motor with some WD-40 and all should be fine. If the fan motor starts and then after the cycle, does not restart, then you definitely have a bad capacitor.

Hope this helps,

Jeff

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