Groen CC20-E Operator's Manual page 255

Maintenance
Test and Adjustments
Pilot Flame Current Check - Gas Units
4. Ignite the pilot. The microammeter should read 3 microamps minimum.
• If current reading is incorrect, replace the igniter module
(see page 8-51).
• If current reading is below 3 microamps, continuity check the flame
rectification circuit (large orange wire, spark electrode, pilot burner
hood, and ground connections). If necessary, tighten ground
connections and/or replace defective component(s).
5. Check for moisture around the pilot burner, and for corrosion on the
electrode and pilot burner hood. If necessary, remove moisture with a
dry, clean cloth. If hood and/or electrode are excessively corroded,
replace pilot burner assembly.
Pilot Flame Adjustment - Gas Units
CC10-G
Start adjustment procedure with the oven on and no mode selected.
1. Inspect the pilot flame.
• The "left wing" pilot flame should cross over the tip of the flame tube.
• The "right wing" pilot flame should point into the gas flow path from
the bottom boiler burner jet.
• The "middle" pilot flame should be a steady flame covering 3/8 to 1/2
inch of the flame sensor tip.
2. If the pilot flame will not stay on, restart pilot and adjust flame height
just to the point where the flame will not go out. The flame height
adjustment screw is located on the main gas valve.
CC20-G
Start adjustment procedure with the oven on and no mode selected.
1. Inspect the pilot flame.
• The pilot flame "wings" should almost touch each of the two bottom
boiler jet flame holders.
• The "middle" pilot flame should be a steady flame covering 3/8 to 1/2
inch of the flame sensor tip.
2. If the pilot flame will not stay on, restart pilot and adjust flame height
just to the point where the flame will not go out. The flame height
adjustment screw is located on the main gas valve.
8-10
(continued)
(Revised 1/02)