Question about Carrier XHB123D X/Y Series Heat/Cool Air Conditioner

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Furance not staying on

I'M TRYING TO RUN THE HEAT FOR THE FIRST TIME AND THE FURNACE COMES ON THE COILS LIGHTS UP, BACK FLASH OR FLAMES STARTS AND SHUT DOWNS. WHAT CAN BE THE PROBLEM?

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  • 334 Answers

The flame sensor is not sensing flame.

You can try cleaning it, but will probably have to replace it.

When the sensor does not detect flame after ignition, it will shut down the gas flow.

Posted on Oct 02, 2009

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