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llmercll  
#1 Posted : Saturday, October 13, 2012 3:55:27 PM(UTC)
llmercll

Rank: Member

Groups: Registered
Joined: 1/31/2011(UTC)
Posts: 9

Hello!

I have a gas central air heater/AC that is acting up. We turned on the heat the other day but it wouldn't light =/

Every year I have to clean the flame sensor and all is well, unfortunately the ignitor isn't even glowing this time.

I figure I may have a cracked ignitor, and want to take a multimeter to it to confirm, but am not sure exactly "where" to test. Would I just put it on the positive and negative cables coming from the computer?

thanks!
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llmercll  
#2 Posted : Saturday, October 13, 2012 5:28:58 PM(UTC)
llmercll

Rank: Member

Groups: Registered
Joined: 1/31/2011(UTC)
Posts: 9

I pulled the ignitor and sure enough it has a crack, also showing "infinite" resistance when I check ohms

I'd like to make sure my wires are working properly before ordering my replacement ignitor and calling it a day though, Should I just turn the heater on and check the voltage of the two wires that go into the ignitor? (sounds dangerous)

thanks!
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