14
9
.
TROUBLESHOOTING
9.1 Symptoms
What follows is a chart of Symptoms and Possible Causes to aid in diagnosing faults with the Clamshell®.
Refer to the Symptoms column to locate the type of failure then to the Possible Cause for the items to be
checked.
To test for a possible cause, refer to the TEST section and locate the Possible Cause then refer to test to
identify test procedures.
SYMPTON
POSSIBLE CAUSE
Igniter not sparking
•
Failed spark module
•
Failed tilt switch
•
Failed air switch
•
Failed motor blower
•
Failed transformer
•
Failed spark electrode
Spark but no ignition
•
Failed spark controller
•
Failed gas solenoid valve
•
Clamshell® gas valve turned off
•
Plugged orifice
Clamshell® turns off after extended use
•
Incorrectly adjusted sense electrode
Taking too long to light
•
Incorrectly adjusted spark electrode
•
Plugged enrichment orifice
•
Plugged burner tiles
Hazy blue flame on tile face
•
Incorrectly adjusted air shutter
•
Leak in air path to burner face
•
Incorrectly adjusted gas regulator
Not hot enough
•
Incorrectly adjusted gas regulator
•
Plugged main burner orifice
•
Plugged burner tiles
Clamshell® not turning off
•
Failed tilt switch
•
Failed gas solenoid valve
Blower runs continuously
•
Normal operation
Summary of Contents for AGC
Page 18: ...18 11 WIRING DIAGRAM...
