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Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 21799
Experience:  40+ yrs. experience as a licensed oil & gas technician.
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Having trouble with my thermostat to the furnace

Customer Question

Customer: having trouble with my thermostat to the furnace
JA: Thanks. Can you give me any more details about your issue?
Customer: sure. one sec
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Submitted: 1 year ago.
Category: HVAC
Customer: replied 1 year ago.
My thermostat is a wireless Honeywell unit. the controller says no signal. the device at the furnace... THM5320R seems to have no power. It has been working well for several yearsI had multiple power outages over the past couple of days... from a wind storm
Customer: replied 1 year ago.
it actually works intermittingly.... mostly doesn't work.
Customer: replied 1 year ago.
for example.... just started working!
Expert:  Rick replied 1 year 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.

An intermittent issue could be a faulty thermostat or an intermittent dead short (break) in the thermostat wiring. You can check the next time it doesn't work by connecting the leads on the thermostat's R & W together. If it fires up then the thermostat is the problem. If it doesn't then the thermostat wire probably has a break between the thermostat and the furnace