NOTICE: Installing the black 120 volt plug in the control box and then connecting the heater to a 240 volt line will destroy the transformer, control broad, and ignition control module, and will void the
warranty.
If you install the red 240 volt plug and then connect the heater to a 120 volt line, the heater will not READ THE FOLLOWING CAREFULLY:
1. Check the line voltage to your heater. This heater will operate on either 120 Volts AC or 240 Volts AC.
2. Remove the covers and check the 12-pin plug in the back of the control box. The plug must match the voltage in the heater circuit.
3. If the 12-pin plug is not plugged into the back of the control box, select the correct plug from the bag in the control box and plug it in.
The BLACK plug is for 120 volts, the RED plug is for 240 volts.
If your plug is damaged, you need a new plug.