SERVICE PROCEDURE
Burner Operation Inspection, Adjustment
Cleaning and Replacement
MAIN BURNER: Inspection, Adjustment,
Cleaning and Replacement (cont.)
Step 3. Fully inspect inner gasket per SERVICE PROCEDURE
Step 4. Be certain that thermocouple, pilot tube and piezo wire are routed by inner door flange as shown and Reinstall inner door per SERVICE PROCEDURE
Position thermocouple/thermopile,
pilot tube and Piezo wire.
Step 5. Observe burner operation through sight glass of inner door. Burner should operate as adjusted in step 2, if not, repeat procedure compensating air shutter position for proper burner operation with inner door in place.
Step 6. It may be necessary to clean main burner or main burner orifice to achieve proper burner operation. If cleaning is required proceed to burner cleaning section in this procedure.
BURNER CLEANING (Steel & Cast Iron)
Step 1. Step 2.
Step 3.
Remove inner door assembly per SERVICE PROCEDURE
Disconnect main burner feed line, pilot tube and thermocouple/thermopile
from combination thermostat gas valve and remove burner assembly from combustion chamber.
NOTE: Feedline nut for natural gas control uses right hand threads,
LP control uses left hand thread.
Thoroughly inspect burner surface area and burner ports and remove any loose debris accumulation.
Step 4.
On cast iron burners, inspect for any debris build up inside burner venturi. If found, disconnect feedline from burner and remove debris build up.
Burner Surface Area
Burner Port Area
Burner Venturi
Opening
Feedline
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