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Mary SpencerAug 8, 2025
What to do if my DEVI devireg 531 has no heat?
- TTara HoustonAug 9, 2025
If your DEVI Thermostat isn't producing heat, start by checking the main fuse, the residual current device (RCD), and other safety devices. If those are fine, ensure all cables connected to the thermostat are properly installed. As a last resort, consider replacing the thermostat or the NTC sensor.