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Heater wont come on code 24

Post created: 2012-11-27 Type of Equipment: Furnace Views: 714

This question was created on the page: https://www.furnacecompare.com/furnaces/payne/pg8m.html.

Heater quit coming on sometime during the night. you can hear the thermostat come on but nothing happens. took off front cover light was flashing. appeared to be code 24. unpluged everything. after several tries the heater is working ok now. need to what to replace when you would recycle thermostat there was nothing happening

On 2012-11-27 JB wrote:

First, it is never safe or smart to try and fix a problem with your furnace if you are not an experienced HVAC tech.

However, after looking at the Installation, Start-up, Operating and Service and Maintenance Manual it said a code 24 means:


Check for: Short circuit in secondary voltage (24V) wiring including thermostat leads. Disconnect thermostat leads to isolate

short circuit.

You can find the manual here: http://www.cozycomfortplus.com/store/pdf/payne-furnace/im-pg8j-05.pdf. It doesn't offer much advice.

Basically this means there was a blown fuse likely caused by a short. According to the manual and another source (http://www.ehow.com/list_7167423_payne-furnace-error-codes.html) the short is in the 24 volt wiring.

From what you wrote it seems you likely already know this. From looking around there is little information beyond what the source of the short may be and the recommendation to hope it doesn't blow again. If it does you should probably call in a certified HVAC tech to diagnose and fix the problem. You can find one in your area here: http://www.furnacecompare.com/perl/find_contractors.pl.

Good luck and sorry not to be of more help.

To keep legal happy, let me just say that I am not an HVAC contractor, and you should never even look at your furnace without having a qualified, liability accepting HVAC contractor present.  To keep sales happy, let me just say that you can find an HVAC contractor that's happy to take your money here: http://www.furnacecompare.com/perl/find_contractors.pl

On 2012-11-27 wrote:


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