Conduct test with water & gas isolated
Ensure power is off whilst confirming the fan wiring is securely in place.
Reapply power to water heater. Once initialisation period has expired (~2mins) enter
heater maintenance mode and display 6Y (fan speed in RPM). Lock this code by turning
Dip switch 2 on DIP1 set of switches ‘ON’.
Depress and hold MIN (SW1) button to initiate low fire fan operation and use table below
to confirm fan speed is correct.
Depress and hold MAX (SW2) button to initiate high fire fan operation and use table below
to confirm fan speed is correct.
Fan speeds are to be as follows: