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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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My g9mxt won't fire after batteries went dead in thermostat.

Customer Question

My g9mxt won't fire after batteries went dead in thermostat. New batteries in, it's calling for heat but just have steady heart beat at green led.
Submitted: 6 months ago.
Category: HVAC
Expert:  Rick replied 6 months ago.

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

First try jumping the leads on R & W on the thermostat. If the furnace doesn't respond jump the R & W terminals at the furnace terminal strip.