Chapter 6
Repair
Repair
6.1 Performing a Full Adjustment of the Burner
Tools required: Phillips screwdriver, two needlenose or similar pliers, wrench set ,
socket set (optional), pipe dope or sealant
1) Turn off power and gas to the heater.
2) Remove the cover to the combustion chamber by removing the four nuts holding
it.
3) Remove the gas fittings attached to the burner.
4) Remove the spark electrode on the bottom of the burner.
5) Remove the burner from the combustion chamber by removing the bolt that holds
it in place.
6) Blow out the combustion chamber and the burner with compressed air. Clean any
more stubborn deposit off of the burner. Since removal of the combustion
chamber and burner is rarely necessary it is
not unusual to see modest deposits inside
the heater.
7) Reinstall the spark electrodes from the
bottom of the burner
8) Check that the gap between the two spark
electrodes shown in Figure 8. If the gap is
larger that 1/8” then adjust the gap to the
correct width. Use care when making
adjustments as the insulator is fragile.
9) Reinstall the burner into the combustion
chamber.
6.2 Checking the Operating Voltage of the Heater
Tools required: Phillips screwdriver and a multimeter
1) Turn off power to the heater at the control box using the rocker
switch.
2) Remove the cover to the thermostat shown in the Figure 9.
3) With a multimeter set to VDC, check the voltage between one
of the brass screws on the thermostat and the electrical tray.
Refer to the troubleshooting guide for correct range of voltages.
23
Figure 8: Spark Gap
Figure 9:
Thermostat
