Rheem 90 plus model rgra10ezajs wont stay lit !

Old 10-25-13, 05:32 PM
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Rheem 90 plus model rgra10ezajs wont stay lit !

My Rheem furnace . The blower comes on at a low speed, the glow stick heats , the gas comes on for about 6-8 sec. then goes off. The blower then goes to a higher speed for a couple minutes and then shuts off. After a few minutes (2-3) it may or may not repeat the same thing a time or two ! Then be off for quite a while and try again later ! Somebody help me please. I cant afford a repair guy at the moment and its getting chilli here in So. Indiana I can and do follow instructions quite well and am reasonablly mechanically inclined ! THX I have looked on line for a trouble shooting manual but cant find one !
Old 10-25-13, 06:11 PM
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Welcome to the forums.

Sounds like the flame sensor needs to be cleaned.
Link to your manual below. Page 56 has diagnostic routines.


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