OWNER’S MANUAL
INSPECTING
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.
Pilot Burner
Thermocouple
WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. If burner flame pat- tern shows yellow tipping, follow instructions at bottom of this page.
NOTICE: Do not mistake orange flames with yellow tipping. Dust or other fine particles enter the heater and burn causing brief patches of orange flame.
CLEANING AND MAINTENANCE
WARNING: Turn off heater and let cool before cleaning.
CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, etc.
GOOD PILOT/LP | GRH/OV 007 |
Figure 18 - Correct Pilot Flame Pattern
Pilot Burner
1/2 GLASS
HEIGHT
CORRECT FLAME PATTERN
AT HIGH POSITION
(Model VP600B will be lower due to
lower input rating)
Figure 20 - Correct Burner Flame Pattern
ODS/PILOT AND BURNER
ORIFICE
•Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.
CABINET
Air Passageways
Thermocouple
BAD PILOT/LP | GRH/OV 008 |
Figure 19 - Incorrect Pilot Flame Pattern
Yellow 
Tipping
•Use a vacuum cleaner or pressurized air to clean.
Exterior
•Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabi- net to remove dust.
If pilot flame pattern is incorrect, as shown in Figure 19
•turn heater off (see To Turn Off Gas to Appliance, page 10)
•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. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height.
1/2 GLASS 
HEIGHT
INCORRECT FLAME PATTERN
AT HIGH POSITION
Figure 21 - Incorrect Burner Flame Pattern
If burner flame pattern is incorrect, as shown in Figure 21
•turn heater off (see To Turn Off Gas to Appliance, page 10)
•see Troubleshooting, pages 12 through 14
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