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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 7791
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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The screen on my Thernidistat.TSTAT is blank, but the

Customer Question

The screen on my Thernidistat.TSTAT is blank, but the furnace seems to be running correctly. How do I get the screen back?
JA: Did you check the furnace's filters?
Customer: I replaced the filter a short while ago.
JA: Do you plan on doing the work yourself?
Customer: What work needs to be done? Replacing the TSTAT?
JA: Anything else we should know to help you best?
Customer: I can replaced the TSTAT, if necessary, Is that the recommended repair?
Submitted: 11 months ago.
Category: HVAC
Expert:  airheatman replied 11 months ago.

Lets start by looking inside thermostat and see if it has batteries that need to be replaced.

Customer: replied 11 months ago.
While waiting four your too-long-delayed answer I found that the Thermidistat wasn't receiving 24vac from the furnace. That shifted my attention to it and I called a service tech. He found that a safety switch had tripped.
Expert:  airheatman replied 11 months ago.

I understand. It appears your days are active at around 4am.Not many techs online at that time.Glad you got it fixed.