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View Full Version : Bryant plus 90i gives code 42


djbrannon
Nov 22, 2011, 08:59 AM
I have ran the test and it said that the inducer was fine but to check the hot surface lighter. The lighter fires in test but not when u call for heat.

drtom4444
Nov 23, 2011, 01:07 AM
You will need to check everything with a meter to see if the unit gets 24 volts when you call for heat. With a meter you should be able to find the problem in a few minutes. DrTom4444