Intellifire Ignition System - (continued)

Symptom

Possible Cause

Corrective Action

4. Pilot lights but continues

A. A shorted or loose connection

Verify all connections to wiring diagram in manual. Verify

to spark, and main burner

in flame sensing rod.

connections underneath pilot assembly are tight. Verify connections

will not ignite. (If the pilot

 

are not grounding out to metal chassis, pilot burner, pilot enclosure

continues to spark after

 

or screen if present, or any other metal object.

the pilot flame has been lit,

 

 

flame rectification has not

 

 

B. Poor flame rectification or

With fixed glass assembly in place, verify that flame is engulfing

occurred.)

contaminated flame sensing

flame sensing rod on left side of pilot hood. Flame sensing rod

 

 

rod.

should glow shortly after ignition. Verify correct pilot orifice is

 

 

installed and gas inlet is set to pressure specifications.

 

 

 

 

C. Module is not grounded.

Verify module is securely grounded to metal chassis of appliance.

 

 

Verify that wire harness is firmly connected to the module.

 

 

 

 

D. Damaged pilot assembly or

Verify that ceramic insulator around the flame sensing rod is not

 

contaminated flame sensing

cracked, damaged, or loose. Verify connection from flame sensing

 

rod.

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.

 

 

 

 

E. Module.

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.

 

 

 

62

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12

Page 62
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Hearth and Home Technologies 4055-187 owner manual Pilot flame has been lit

4055-187 specifications

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