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Old 08-02-17, 10:16 PM   #6
jeff5may
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Join Date: Jan 2010
Location: elizabethtown, ky, USA
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Top 5 reasons:

1. Blown thermal fuse or high-limit switch
2. Defective gas valve solenoid
3. Bad igniter
4. Faulty flame sensor
5. Inoperative cycling thermostat

All of these components can be found for less than $20 each, the most common (thermal fuse) for less than $5. Nearly all home appliances come with a "tech sheet" hidden inside the cover somewhere. It is indeed a treasure map for servicemen: secret menus and diagnostic procedures are described within, as well as part numbers for high failure parts. Makes a repair job much easier.
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