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Shutting Off Heater
1. Turn control knob clockwise
Clockwise
to the OFF position.
2. Turn off all electric power to the appliance if service is to be performed.
Shutting Off Burner Only (pilot stays lit)
1. Turn control knob clockwise
Clockwise
to the PILOT position.
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 6 under Lighting Instructions, pages 17 and 18.
2. With control knob pressed in, strike match. Hold match to pilot until pilot
lights.
3. Keep control knob pressed in for 10 seconds after lighting pilot. After 10
seconds, release control knob.
TO TURN OFF GAS TO APPLIANCE
OPERATING
HEATER
Continued
INSPECTING
BURNER
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilot
flame pattern. The incorrect pilot flame is not touching the thermocouple. This will
cause the thermocouple to cool. When the thermocouple cools, the heater will shut
down.
Thermocouple
Pilot Burner
Figure 18 - Correct Pilot Flame Pattern
GRH/OV 010BAD PILOT
Pilot Burner
Thermocouple
Figure 19 - Incorrect Pilot Flame Pattern
GRH/OV 009GOOD PILOT
If pilot flame pattern is incorrect, as shown in Figure 19
• turn heater off (see To Turn Off Gas to Appliance, above)
• see Troubleshooting, pages 22 through 25