Thank you for your question on the model 124 wall heater. If the thermal overload is tripping regularly, the problem is probably one of three things. The thermal overload is defective, there is a build-up of dust and dirt on the blower wheel or the motor has slowed down and needs to be replaced. Please contact the Technical Service Department at 800-637-1453 for further assistance.
Date published: 2015-11-17