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Rick
Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 19512
Experience:  Licensed Master plumber with 40+ yrs. experience.
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A o Smith Master fit 100 gal water heater mod BTR 197 118 does

Customer Question

A o Smith Master fit 100 gal water heater mod BTR 197 118 does not ignite green light blinks 7 times?
Submitted: 1 year ago.
Category: Plumbing
Expert:  Rick replied 1 year ago.
A 7 flash error indicate the flame sensor is shorted to ground. The chamber needs to be checked for debris (a rust flake bridging the sensor rod and the burner is one possibility) and the sensor needs to be checked for cracks in its ceramic insulation