What to do if my DeLonghi HMP doesn't work?
- MMelissa RoseJul 30, 2025
If your DeLonghi Heater isn't working, ensure it is plugged into the outlet and the power selector is set to MIN or MAX. Adjust the thermostat clockwise to a higher setting until the heater restarts. Also, make sure the appliance is upright on a flat surface. Remove any obstructions and allow the heater to cool down.