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Joseph ColemanJul 25, 2025
How to fix a Honeywell T8000 Thermostat when the display does not come on?
- RRyan YoungJul 26, 2025
If the Honeywell Thermostat display doesn't turn on, make sure it's properly mounted and latched on the wallplate. Also, check the circuit breaker and reset it if it's tripped. Replace the fuse if it's blown. Ensure the equipment switch is in the On position. If you have a T8002 model, verify the batteries are good and correctly installed.
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