Question about Heating & Cooling
Hello, if we are talking about a gas or propane heater, there is a flame sensor in the burner mantle. Usually these look like a wire or small cylinder the size of a ballpoint pen cap. There will be usually 2 wires running from it. If the flame sensor is bad, it shuts off the gas because your furnace does not know it is burning. It wants to prevent a buildup of unburned gas so it shuts of the supply.
Another possibility, can be a part furnance guys call a "sailswitch". This switch is higher in the furnance well above the burners. You should hear a small motor run and this "Sailswitch" detects the airflow from the small motor and the rising heat from the burner. If this switch does not work your furnance will think the exhaust is blocked or the small motor is not running. It will kill the gas to the burner. Usually the small motor and "Sailswitch" must work before the burners get gas. Since you said the burners cut out after 2 seconds, a lag time is possible.
When you go to an appliance parts outlet, like Servall, have all the information about Model, Serial number, Manufacturing date, with you to obtain the correct part. I hope my info has been very helpful to you. You may want to obtain a new part first, which will help in identifying the old part.
Posted on Dec 30, 2010
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 12, 2013 | Pool & Spa
Oct 22, 2012 | Heating & Cooling
Feb 11, 2011 | Heating & Cooling
Jan 27, 2011 | Goodman Heating & Cooling
Jan 23, 2011 | Heating & Cooling
Oct 22, 2009 | Jandy LAARS LITE 2 INDOOR DRAFTHOOD 175...
Jun 07, 2009 | Teledyne Laars Laars Lite 2 Pool Heater...
Mar 24, 2009 | Lite On Laars Lite 2 Heaters: 250,000BTU...
Dec 16, 2007 | Heating & Cooling
Jan 16, 2018 | Heating & Cooling
13 people viewed this question
Usually answered in minutes!