Carrier Heat Pump won't heat


Old 01-15-06, 06:52 AM
Thread Starter
Join Date: Jan 2006
Posts: 1
Upvotes: 0
Received 0 Votes on 0 Posts
Angry Carrier Heat Pump won't heat

10 to 12 year old unit (38YH030300). The outside unit won't kick on, yet it makes a humming sound. If I turn the whole thing off at the thermostat, the outside unit stops humming, but now the inside unit hums (even though the fan is not running). As a struggling single dad of 2, I could surely afford a $2 switch to replace - otherwise its gonna be a cold winter (yes, even in Orlando). Any ideas would be greatly appreciated.

Last edited by jeffr1818; 01-15-06 at 07:12 AM. Reason: I would like email notification of replies
Sponsored Links
Old 01-15-06, 05:09 PM
Join Date: Jan 2006
Posts: 15
Upvotes: 0
Received 0 Votes on 0 Posts
Sounds like the outside unit might have some power issues. The humming noise is the contactor pulling in. That happens when the thermostat calls for heat or cool and sends 24vac to the outdoor unit. Use a multimeter and check to see if you have the 240v at the contactor. If you're not good with that kind of thing, just check to make sure the breaker serving the outdoor unit isn't tripped.

If that ain't it, it gets more complicated.

Good luck, ST.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: