Desa CGB35P, CGB50P Inspecting Pilot and Burner Flame, Pilot Flame Pattern, Burner Flame Pattern

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INSPECTING PILOT AND BURNER FLAME

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 prevent the thermocouple from getting hot, causing the heater to shut down.

Thermocouple

Thermocouple

 

Figure 18 - Correct Pilot

Figure 19 - Incorrect

Flame Pattern

Pilot Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 19

turn heater off (see To Turn Off Gas to Appliance, page 22)

contact a qualified service person

BURNER FLAME PATTERN

Note: To view burner flame, look through front glass of heater.

Figure 20, page 24 shows a correct burner flame pattern. Figure 21, page 24 shows two incorrect burner flame patterns. The two incorrect flame patterns show high yellow flames and flames lifting off of burner.

WARNING

If high yellow flame occurs, your heater could produce increased levels of carbon monoxide. If burner flame is incorrect, follow instructions on page 24.

NOTICE

Do not mistake orange flames with yellow flame. Dirt or other fine dust particles enter the heater and burn causing brief patches of orange flame.

Continued

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualFor Your Safety Contents Carbon monoxide poisoning may lead to death Safety InformationSafety Information Product Identification Check GAS Type Local Codes Unpacking Product FeaturesInstallation Items Heater Clearances Locating HeaterVenting Heater Do not vent heater in any of the following ways see Figure Venting HeaterVenting Heater Proper Size Vent External Regulator with Vent Pointing Down Connecting to GAS SupplyGas Connection Checking GAS Connections Pressure Testing Gas Supply Piping SystemRemoving Lower Front Access Panel Installing Glass PanelInserting Glass Panels Fresh AIR for Combustion and Ventilation Draft Hood Spillage Test Determining FRESH-AIR Flow for Heater LocationVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Lighting Instructions For Your Safety Read Before LightingOperating Heater Viewing Pilot Shutting Off Burner Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS to Appliance Shutting Off HeaterBurner Flame Pattern Inspecting Pilot and Burner FlamePilot Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Observed Possible Problem Cause Remedy Trouble ShootingTROUBLE- Shooting Observed Possible Remedy Problem CauseStat bulb satisfied Statement at top Gas leak. See WarningRemoving Control Valve and Burner Tube Service ProceduresRemoving Burner Orifice Location 35,000 BTU/Hr Burner Shown Changing Burner OrificeModel Technical ServiceService Hints 35,000 BTU/HrParts Not Under Warranty Ordering Replacement Parts CentralsParts Under Warranty Valve GA5010 AccessoriesIllustrated Parts List QTY Cabinet Assembly 100352 International Warranty Information