Double check all hose connections for leaks.
With engine running, start heater. Check the indicator light (6), per the heater function codes plate (3) for heater
Turn off the engine and allow heater to run until the coolant reaches temperature, at which time the heater will cycle to
Switch heater off.
The water pump and combustion air blower will continue to run for
approximately 3 minutes.
Locate identification plate below existing plates on left side of housing. Match and drill 3/16" holes in housing. Install