How Do You Troubleshoot A Duo Therm Furnace?
In the 1990s, Duo-Therm was one of the biggest manufacturers of furnaces for recreational vehicles. Today, many older recreational vehicles still use a Duo-Therm furnace to heat their interior. However, these heaters can sometimes malfunction. Common problems can be encountered in areas such as the furnace’s air filter and intake valves. Learn how to troubleshoot your Duo-Therm device so you can enjoy your RV even in the coldest of winters. Make sure you the furnace is set up properly if you cannot turn it on. Turn the furnace’s thermostat to the “OFF” position, found on the top of the furnace box. Slide out the heater’s front grill and locate the gas controls, found on the inside left edge of the furnace. Turn the knob to the “OFF” position and wait for 10 minutes before turning the knob back on. This helps restart the internal gas flow. Slide the furnace’s front grill back in and turn the thermostat back to your desired temperature. The internal ignition should ignite the gas flow an
