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15
Shutting Off Heater
1. Turn control knob clockwise
Clockwise
to the OFF position.
Shutting Off Burner Only (pilot stays lit)
1. Turn control knob clockwise
Clockwise
to the PILOT position.
MANUAL LIGHTING PROCEDURE
1. Remove front panel (see Figure 8, page 8).
2. Follow steps 1 through 6 under LIGHTING INSTRUCTIONS, pages 12 and 13.
3. With control knob pressed in, strike match. Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 10 seconds after pilot is lit. After 10 seconds,
release control knob.
5. Replace front panel.
TO TURN OFF GAS TO APPLIANCE
INSPECTING
BURNER
GRH/OV 007GOOD PILOT/LP
Thermocouple
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 17 shows a correct pilot flame pattern. Figure 18 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.
Pilot Burner
Figure 17 - Correct Pilot Flame Pattern
Continued
Thermocouple
GRH/OV 008BAD PILOT/LP
Pilot Burner
Figure 18 - Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 18
• turn heater off (see TO TURN OFF GAS TO APPLIANCE, above)
• see TROUBLESHOOTING, pages 17 through 20