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View Full Version : Problem with rheem classic 90 furnaces


junglesun
May 2, 2010, 08:29 PM
I have a classic 90 plus rheem furnace and every time I run the furnace it run for 10 to 15 min and one of the three rollout keep tripping and won't reset until I turned it off and wait for 20 min I check for blocage in the intake and exhaust pipe and there are clear any suggestion

Joshdta
May 3, 2010, 04:50 AM
Gas pressure to high, or clogged up secondary heat exchanger, bad primary heat chamber, bad role out