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Intermitent Blower operation

Posted: Thu Jan 20, 2011 11:35 am
by ared947
Model: DGAT07OBDC

Problem: Blower motor will turn on normally or not at all.

Normally: Purge motor turns on and I can see ignition through the sight glass.
Nice blue flame and hot air is blowing through the vents.

Intermittently: Just the purge motor runs, Has a blue flame in the box. Seems like the blower motor is not getting the OK to turn on.

Appreciate any help, and thanks for the forum.

Re: Intermitent Blower operation

Posted: Thu Jan 20, 2011 8:54 pm
by Robert
Hi,


Make sure all wires are tight and not loose. If so, that is often due to a bad fan switch.



Fan Switch # 7975 - 3281 can be seen and ordered here by paging down :

http://www.aberdeenhomerepair.com/store ... -7975-3281



Thanks,
Robert