![Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair](http://www.grayfurnaceman.com/uploads/1/0/6/6/10667336/rheem-fault-codes_orig.png)
Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair
![I have a comfortmaker that gives me 4 flashes and then after a couple of minutes gives off 7 flashes. Started last I have a comfortmaker that gives me 4 flashes and then after a couple of minutes gives off 7 flashes. Started last](https://f01.justanswer.com/azS0YSdX/image0.jpg)
I have a comfortmaker that gives me 4 flashes and then after a couple of minutes gives off 7 flashes. Started last
![Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair](http://www.grayfurnaceman.com/uploads/1/0/6/6/10667336/7346597_orig.jpg)
Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair
![ICP Heil Tempstar Comfortmaker Furnace Fan Control Circuit Board 1380698 1380699 - North America HVAC ICP Heil Tempstar Comfortmaker Furnace Fan Control Circuit Board 1380698 1380699 - North America HVAC](https://cdn11.bigcommerce.com/s-90gh8trf/images/stencil/1280x1280/products/41539/109553/CBX56%20003__11085.1511894662.jpg?c=2)
ICP Heil Tempstar Comfortmaker Furnace Fan Control Circuit Board 1380698 1380699 - North America HVAC
![Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums](https://www.doityourself.com/forum/attachments/gas-oil-home-heating-furnaces/39094d1412022304-comfortmaker-furnace-honeywell-valve-flashing-6-2-diagnostic-codes-2.jpg)
Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums
![Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair](http://www.grayfurnaceman.com/uploads/1/0/6/6/10667336/arco_orig.png)
Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair
![Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums](https://www.doityourself.com/forum/attachments/gas-oil-home-heating-furnaces/39091d1412022273-comfortmaker-furnace-honeywell-valve-flashing-6-2-diagnostic-codes-5.jpg)
Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums
![Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums](https://www.doityourself.com/forum/attachments/gas-oil-home-heating-furnaces/39092d1412022283-comfortmaker-furnace-honeywell-valve-flashing-6-2-diagnostic-codes-4.jpg)
Comfortmaker Furnace with Honeywell valve flashing 6 + 2 diagnostic codes - DoItYourself.com Community Forums
![If furnace rests for 5+ hours, furnace short-cycles multiple times before running normally. Had multiple techs over, already replaced some parts and still having problem. See comment for full detail. : r/hvacadvice If furnace rests for 5+ hours, furnace short-cycles multiple times before running normally. Had multiple techs over, already replaced some parts and still having problem. See comment for full detail. : r/hvacadvice](https://external-preview.redd.it/lH3hl2W64Vj9MSf46TFXge1whaHtZDmRrZ6fSFQfDg4.png?width=640&crop=smart&format=pjpg&auto=webp&s=d5b60a6f121b75457e0805f773e1d58be745a035)