Heatiator NEVO4236I NEVO3630I Intellifire Ignition System - continued, Symptom, Possible Cause

Models: NEVO4236I NEVO3630I

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Intellifire Ignition System - (continued)

Symptom

Possible Cause

Corrective Action

 

4. Pilot sparks, but Pilot will

A. Gas supply.

Verify that incoming gas line shutoff valve is “open”. Verify that inlet

 

not light.

 

pressure reading is within acceptable limits.

 

Note: Red LED may flash

B. Ignitor gap is incorrect.

Verify that spark gap from ignitor to pilot hood is .17 in. or 1/8 in (3

 

 

mm).

 

twice on the Module.

 

 

C. Module is not grounded.

Verify black ground wire from module wire harness is grounded to

 

 

 

 

 

metal chassis of appliance.

 

 

D. Module voltage output is low.

Verify battery voltage is at least 4 volts. Replace batteries if

 

 

 

voltage is below 4.

 

5. Pilot lights but continues

A. A shorted or loose connection

Verify all connections to wiring diagram in manual. Verify

 

to spark, and burner will

in flame sensing rod.

connections underneath pilot assembly are tight. Verify

 

not ignite. (If the pilot

 

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

 

continues to spark after

 

pilot enclosure 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. Polish flame sensing rod with fine steel

 

 

wool 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.

 

 

 

 

 

6. No pilot, no burner flame;

A. False flame detected.

Shut off gas and power immediately and call a technician.

 

pilot lit but no burner flame;

 

 

 

3 Flashes on the Module

 

 

 

Red LED.

 

 

 

 

 

 

 

60

Heatilator • Evolution • 4065-114 Rev. o • 11/11

Page 60
Image 60
Heatiator NEVO4236I NEVO3630I Intellifire Ignition System - continued, Symptom, Possible Cause, Corrective Action