Wiser
Display Power / Backlight Instability.
Thermostat backlight flickers or the display intermittently dims.
Advertisements
Possible Causes
Weak batteries, failing backlight driver, loose connection to wall plate, or electrical noise on the low-voltage supply.
How to Fix / Troubleshooting
Safety first: For mains or 24V powered units, isolate power before removing from the wall.
- Replace batteries: For battery models, install new alkaline cells.
- Reseat thermostat: Remove and refit the thermostat to ensure solid contact with the backplate.
- Check for vibration: Ensure the thermostat is firmly mounted and not subject to vibration from doors or pipes.
- If flicker continues, the backlight driver or display is failing. Replace the thermostat.
Advertisements
Repair Difficulty
Very Easy
1/5
Required Part
Wiser Room Thermostat display / backlight circuit.
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements