OWNER’S MANUAL

OPERATING

HEATER

Continued

MANUAL LIGHTING

PROCEDURE

1.Remove front panel (see Figure 10, page 7).

2.Follow steps 1 through 5 under Light- ing Instructions, page 10.

3.With control knob pressed in, strike match. Hold match to pilot until pi- lot lights.

4.Keep control knob pressed in for 10 seconds after pilot is lit. After 10 sec- onds, release control knob.

5.Replace front panel.

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

GOOD PILOT

GRH/OV 009

Figure 18 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

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.

Figure 20 - Correct Burner Flame Pattern (Model VN10 Shown)

Figure 21 - Incorrect Burner Flame Pattern (Model VN10 Shown)

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

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.

ODS/PILOT AND BURNER ORIFICE

Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.

CABINET

Air Passageways

Use a vacuum cleaner or pressurized air to clean.

Exterior

Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

BAD PILOT

GRH/OV 010

Figure 19 - Incorrect Pilot Flame Pattern

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Desa VN6C, VN10 installation manual Inspecting Burner, Cleaning and Maintenance