Outside Unit wont turn on, unless..... - http://www.hvacmechanic.com/ Forums
Original message
| ckb24
 |  "Outside Unit wont turn on, unless....."
, posted Wed 23 Apr 23:03  
I push in the contacts on the contactor. If I hold them in, everything seems to run great. But the minute I let go of them, they pop out and everything shuts off. Any ideas? Oh I have a Carrier Weathermaker 8000.. Its approximately 13-14 years old (Just entering its prime!) I replaced the fan about 3 years ago and replaced the capacitator today thinking that might be it.
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Replies:
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| | ckb24
|  "Re(2):Outside Unit wont turn on, unless....."
, posted Wed 23 Apr 23:24
What more information could you use? I will be happy to supply it! So if I have 24 volts entering the condensor, then I can assume that I need Freon? And do you have any diagrams of the pressure switches? I am handy, but a novice at AC repair..
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| | Houston204
| "Re(3):Outside Unit wont turn on, unless....." , posted Wed 23 Apr 23:37:
Post your model number. 38TRA048-321 ?
The 3rd and 4th digits of your serial number indicate the year.
My Example shows a 5 minute time delay relay. If your unit is equipt with a timer it could also be the cause.
Is this a heat pump? 38YRA
Follow the voltage, where does it stop? If you have 24 volts to your contactor but it does not pull in, replace youre contactor.
"Tip of the Day" Remember to remove power first.
[this message was edited by Houston204 on Thu 24 Apr 00:03] |
| | ckb24
| "Re(4):Outside Unit wont turn on, unless....." , posted Thu 24 Apr 09:32
Model # is 38YC036310
And yes its a heat pump... It was made in 93..
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| | Houston204
| "Re(5):Outside Unit wont turn on, unless....." , posted Thu 24 Apr 22:11
If you have 24 volts between Y (blue or yellow) and C (brown), but do not have 24 volts between T1 (blue or yellow) and C, it is your pressure switch.
"Tip of the Day" Remember to remove power first.
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