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103549
OWNER’S MANUAL
Control
Knobs Burners
LOW
OFF
PILOT
HIGH
OFF
PILOT
OFF
Figure 17 - Burner Patterns
OPERATING
HEATER
Continued
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
Shutting Off Burner Only
(pilot stays lit)
1. Turn control knob clockwise to the
PILOT position.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 10,
page 7).
2. Follow steps 1 through 5 under
Lighting Instructions, page 10.
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.
GRH/OV 009GOOD PILOT
GRH/OV 008BAD PILOT/LP
Figure 18 - Correct Pilot Flame Pattern
If pilot flame pattern is incorrect, as
shown in Figure 19
• turn heater off (see To Turn Off Gas
to Appliance).
• see Troubleshooting, pages 12
through 14.
Thermocouple
Thermocouple
INSPECTING
BURNER
Figure 19 - Incorrect Pilot Flame Pattern
Pilot Burner
Pilot Burner
Check pilot flame pattern and burner flame
pattern often.
PILOT FLAME PATTERN
Figure 18 shows a correct pilot flame pat-
tern. 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.
Figure 20 - Correct Burner Flame Pattern
Figure 21 - Incorrect Burner Flame Pat-
tern
If burner flame pattern is incorrect, as shown
in Figure 21
• turn heater off (see To Turn Off Gas
to Appliance).
• see Troubleshooting, pages 12
through 14.
BURNER FLAME PATTERN
Figure 20 shows a correct burner flame
pattern. Figure 21 shows an incorrect burner
flame pattern.