Gas and Oil Home Heating Furnaces - forced hot air heat

Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.



PDA

View Full Version : forced hot air heat

01-11-02, 02:22 AM
Have a problem with the burner that it keeps on going and ignores the thermostat temperature to cease at 68 degrees.The honeywell electronic programmable thermostat is set for 68 to shut down the furnance,but it keeps on going and i have to shut the burner by emergency switch. This is the third thermostat i put in and wonder why it dont register. It doesnt happen often but it did happen twice this month .I restart the burner and it runs okay then bingo it runs the temperature upward till i have to shut it down for a while and re start up again to its normal degree. I was hoping to find out before i call in a plumber or oil burner to see what the problem is.Maybe the burner is in need for a cleaning. Would appreciate any help i can get .

thank you
brtile@aol.com

hvac4u
01-11-02, 11:06 AM
if the burners are lit after the thermostat reaches temp, remove the white wire at the t stat if it continues to burn very possible the gas valve is sticking......VERY DANGEROUS
fjrachel
01-11-02, 11:54 AM
Noted, that you said oil burner...Have the burner relay checked, the contacts may be sticking. Also if you know how to use a volt meter.......check for control signal for heat at the burner control. If no signal, it's the relay. If you get a signal it's the t'stat. Also the t'stat may not be compatable with an oil type system.