Heatilator EDV3633 Owner's Manual page 53

Intellifire Ignition System - (continued)
Symptom
4. Pilot lights but continues
to spark, and main burner
will not ignite. (If the pilot
continues to spark after
the pilot flame has been lit,
flame rectification has not
occurred.)
Possible Cause
A. A shorted or loose connection
in flame sensing rod.
B. Poor flame rectification or
contaminated flame sensing
rod.
C. Module is not grounded.
D. Damaged pilot assembly or
contaminated flame sensing
rod.
E. Module.
Heatilator • Eclipse • 4049-229 Rev I • 08/09
Corrective Action
Verify all connections to wiring diagram in manual. Verify connections
underneath pilot assembly are tight. Verify connections are not
grounding out to metal chassis, pilot burner, pilot enclosure or screen
if present, or any other metal object.
With fixed glass assembly in place, verify that flame is engulfing
flame sensing rod on left side of pilot hood. Flame sensing rod
should glow shortly after ignition. Verify correct pilot orifice is
installed and gas inlet is set to pressure specifications.
Verify module is securely grounded to metal chassis of appliance.
Verify that wire harness is firmly connected to the module.
Verify that ceramic insulator around the flame sensing rod is not
cracked, damaged, or loose. Verify connection from flame sensing
rod to white sensor wire. Clean flame sensing rod with emery cloth
to remove any contaminants that may have accumulated on flame
sensing rod. Verify continuity with a multimeter with ohms set at
lowest range. Replace pilot if any damage is detected.
Turn ON/OFF rocker switch or wall switch to OFF position. Remove
ignitor wire "I" from module. Place ON/OFF rocker switch or wall
switch in ON position. If there is no spark at "I" terminal module must
be replaced. If there is a spark at "I" terminal, module is fine.
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