DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > HVAC > help needed/condenser coil contact

Help Support House Repair Talk by donating using the link above.
Thread Tools Search this Thread
Old 07-18-2006, 06:57 PM  
Junior Member
Join Date: Jul 2006
Posts: 1
Default help needed/condenser coil contact

I recently replaced a friend's thermostat from a mechanical to a digital. I placed all wires as used on old thermostat, but outside unit contact will not pull shut when calling for cooling. I'm getting 24v to mag coil on contact. I disconected wires & did read continuity through mag coil. When contact is pushed shut, the fan motor & compressor both begin to work. I tested both high voltage wires coming into the unit seperately, and got 120vac, though I have not read across the wires to make sure it's 220vac.
The unit is a Rheem RARA-024JAZ. Does anyone have a specific schematic for the wiring of the contact for this unit? I'm thinking my wires may have gotten crossed. By the way a new contact was installed & still the same trouble. Thank you.

et30525 is offline  
Reply With Quote
Old 07-19-2006, 06:33 AM  
Senior Member
Join Date: Mar 2006
Posts: 409

You say that when the contact is pushed shut, the compressor comes on... How about when you ground the control side of the mag coil? -- does it come on then too?? Does it come on when you ground at the unit AND at the thermostat this way?

Does it (still)work with the old mechanical thermostat?

Sometimes schematics are glued inside covers and panels on these units.
CraigFL is offline  
Reply With Quote
Old 07-20-2006, 07:11 PM  
Junior Member
Join Date: Jul 2006
Posts: 6

did you jumper r and c
aceinstaller#1 is offline  
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
HVAC - Coil Cleaning bena8837 HVAC 6 10-20-2010 08:20 PM
refig icemaker heat coil problem seismo1951 General Appliance Discussion 7 01-25-2009 09:14 PM
installing can lights in ceiling coil heat spareho HVAC 1 07-31-2007 04:31 PM
Leaking evap coil merlinfolks HVAC 1 09-22-2006 05:39 AM
Evaporator Coil Replacement on 8 year Lennox 5 Ton 10 SEER unit RZV500R HVAC 2 07-20-2006 11:52 AM