Filter
Top Products
Step 3. Fully inspect combustion chamber for debris or carbon build up.
Step 4. Burner should operate as adjusted in step 2, if not, repeat procedure compensating air shutter position for
proper burner operation with inner door closed.
Step 5. 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.
MAIN BURNER: Inspection, Adjustment,
Cleaning and Replacement (cont.)
SERVICE PROCEDURE A
G-IV
Burner Operation Inspection, Adjustment
Cleaning and Replacement
BURNER CLEANING (Steel & Cast Iron)
Step 1. Slide open inner combustion chamber door.
Step 2. Disconnect main burner feed line (¾” wrench), pilot tube (7/16" wrench) and thermocouple (3/8") wrench
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.
Step 3. Thoroughly inspect burner surface area and burner ports and remove any loose debris accumulation.
Page 11
Burner Surface Area
Burner Port Area
Step 4. Oncast iron burners, inspect
for any debris build up inside
burner venturi. If found,
disconnect feedline from burner
and remove debris build up.
Burner Venturi
Opening
Feedline
11