Get Answers to your Appliance Repair Questions

Author Topic: Pilot light on Furnace keeps going out  (Read 5942 times)

Offline p5609

  • VIP Member
  • Member Since: Jan 2012
  • Posts: 4
  • Country: us
Pilot light on Furnace keeps going out
« on: January 24, 2013, 11:50:22 PM »
I have a very old furnace, by Dowagiac Steel Furnace Co, Model # 90, Serial # 1622.  In the past month my pilot light has gone out sporadically, upon relighting, it stayed lit and ran fine.  However tonight, I came home after being gone 6.5 hours and the pilot light was out, house was 55 degrees and pilot light was out.  As previously, I relit the pilot light, however it has now gone out 3 times in 4 hours.  A friend thinks it is most likely that the thermal coupler needs replacing, and provided one the other day but did not replace it at that time as the pilot light had not gone out more than 1 time in about 5 days.  The friend increased the size of the pilot light flame, thinking perhaps this was also needed.  By this history, is this sounding like only the thermal coupler needs replaced or could more be wrong?  I have not had a service person come out yet at this point. :(
« Last Edit: January 24, 2013, 11:51:01 PM by p5609 »

Offline jumptrout51

  • Technician
  • Member Since: Nov 2007
  • Posts: 1879
  • Country: us
    • Buy me a beer through paypal
Re: Pilot light on Furnace keeps going out
« Reply #1 on: January 25, 2013, 05:30:09 AM »
It may be just a bad thermocouple.
You do need to check for a draft down the flue.
Wind gust can blow it out as well.
Take a Kid fishing.

Offline yegor2003 .

  • VIP Member
  • Member Since: Nov 2013
  • Posts: 2
Re: Pilot light on Furnace keeps going out
« Reply #2 on: January 07, 2014, 03:16:15 PM »
90% its the thermocouple or so called mili volt generator.
Basically it not giving out enough to keep the pilot going

Offline RevoltingVinyl

  • VIP Member
  • Member Since: Dec 2016
  • Posts: 1
Re: Pilot light on Furnace keeps going out
« Reply #3 on: December 28, 2016, 01:08:29 AM »
My parents have a Dowagiac steel furnace in their home. They recently found the original manual that went with it,  circa 1952. I want to replace it for them... But my father argues that he wants to have it fixed.  They have had the same problem with the pilot going out.  My question is first... Did you find out what the problem was with your furnace or just replace it?  If you did get it fixed what was the problem and where did you find the part? 


pilot light goes out

Started by ajh74

Replies: 5
Views: 12146
Last post November 08, 2013, 07:51:23 AM
by RegUS_PatOff
ventless fieplace pilot won't light

Started by amckinney

Replies: 3
Views: 4094
Last post January 12, 2011, 09:19:17 PM
by JWWebster
pilot not igniting burner on gas furnace ???

Started by AlsoThumbs

Replies: 2
Views: 4378
Last post March 25, 2014, 04:03:45 PM
by bleonard1989
Kenmore Gas Water heater "Power Miser 12"- Pilot light not staying lit

Started by Masternewbie

Replies: 7
Views: 5962
Last post November 15, 2014, 12:28:26 PM
by Masternewbie
Airtemp furnace

Started by maypo52

Replies: 9
Views: 16212
Last post March 05, 2008, 02:36:32 PM
by JWWebster
whirpool furnace fs643-125cr

Started by ddh

Replies: 2
Views: 6315
Last post July 04, 2008, 09:44:24 AM
by ddh