Important: Service performed by other than factory authorized personnel will void all warranties.
SYMPTOM WHO
WHAT TO CHECK
X indicates items which must be performed by an Groen authorized service
technician.
Spark is present but the pilot
will not light.
Auth Service
Rep Only
a. That the pilot valve is securely connected to terminals. X
b. For 24 VAC at terminals PV and to ground. If 24V is not present,
replace the ignition control module. X
b. That gas pressure is at least 3.5" W.C.(8.7millibars). X
c. For gas at the pilot. If it is not flowing:
(1) Check the pilot gas line for kinks and obstructions. X
(2) Clean orifice, if necessary. X
(3) Check solenoid operation pilot valve on gas valve. Repair or
replace as necessary. X
d. That the pilot spark gap is located in the pilot gas stream. If not,
adjust or replace the pilot burner. X
e. For drafts. Shield the pilot burner, if necessary. X
Pilot lights, but main burner
will not come on and spark
does not stay on.
Auth Service
Rep Only
a. Check operating thermostat to see that it is closed at temperature
setting higher than that of the current pan temperature. X
b. For 24 V between terminals MV and to ground. If 24V is not
present, replace the ignition control module. X
c. That gas pressure is at least 3.5" W.C.(8.7millibars). X
d. Electrical connections of the main valve to terminals, to assure
that they are securely attached. Check solenoid operation for
main valve on gas valve. Repair or replace as necessary. X
e. That secondary thermostat switch is closed.X
Pilot lights, but main burner
will not come on, the spark
stays on.
Auth Service
Rep Only
a. Check for improper grounding. If necessary, repair with high
temperature wire. X
b. Pilot burner ceramic insulator for cracks. X
c. That high tension cable is not grounded out. If it is, correct the
ground-out condition or the pilot burner. X
d. For proper gas pressure. X
e. Clean pilot assembly, or replace if necessary. X
f. Tighten all mechanical and electrical connections. X
g. Replace ignition control module. X
Main burner comes on but
will not stay on.
Auth Service
Rep Only
a. Check burner ground for bad wire or connection. Replace if
necessary with high temperature wire. X
b. Check for low gas supply pressure. If necessary, replace ignition
control module. X
C. Models with Standing Pilot Ignition System
Pilot will not light. User a. Lighting procedure, to ensure that the instructions in the Operation
section of this manual are followed
Auth Service
Rep Only
b. That the pilot gas supply line is purged of air. X
c. Pilot gas adjustment screw, to ensure that it is open. X
d. Pilot tubing and orifice for clogging. X