Intellifire Plus™ Ignition System - Heat & Glo SUPREME-I30-SP Owner's Manual

B. IntelliFire Plus™ Ignition System
Symptom
1. Pilot won't light. A. Incorrect wiring.
The ignitor/module
makes noise, but no
B. Loose connections or electrical
spark.
C. Ignitor gap is too large.
2. Pilot won't light, A. No power, transformer installed
there is no noise or
spark.
B. A shorted or loose connection in
C. Improper wall switch wiring.
D. Module not grounded.
3. Pilot sparks, but A. Gas supply.
Pilot will not light.
B. Ignitor gap is too large.
C. Module is not grounded.
D. Pilot valve solenoid
4. Pilot lights but con- A. A shorted or loose connection in
tinues to spark, and
main burner will not
ignite. (If the pilot
continues to spark
B. Poor fl ame rectifi cation or contami-
after the pilot fl ame
has been lit, fl ame
rectifi cation has not
occurred.)
C. Module is not grounded.
D. Damaged pilot assembly or con-
40 Heat & Glo • Grand-I35, Grand-I35-SP, Supreme-I30, Supreme-I30-SP • 2206-900 Rev. K • 6/11
Possible Cause
shorts in the wiring.
incorrectly, or depleted batteries.
wiring confi guration or wiring har-
ness.
fl ame sensing rod.
nated fl ame sensing rod.
taminated fl ame sensing rod.
Corrective Action
Verify "S" wire (white) for sensor and "I" wire (orange) for ignitor are
connected to correct terminals on module and pilot assembly.
Verify no loose connections or electrical shorts in wiring from mod-
ule to pilot assembly. Verify connections underneath pilot assembly
are tight; also verify igniter and fl ame sense wires are not grounding
out to metal chassis, pilot burner, pilot enclosure, mesh screen if
present, or any other metal object.
Verify gap of igniter to right side of pilot hood. The gap should be
approximately .17 in. or 1/8 in. (3 mm).
Verify that transformer is installed and plugged into module. Check
voltage of transformer at connection to module. Acceptable read-
ings of a good transformer are between 6.4 and 6.6 volts AC. Bat-
tery power supply voltage must be at least 4 volts. If below 4 volts,
replace batteries.
Remove and reinstall the wiring harness that plugs into module.
Verify there is a tight fi t. Verify pilot assembly wiring to module. Re-
move and verify continuity of each wire in wiring harness. Replace
any damaged components.
Verify that 120/VAC power is "ON" to junction box.
Verify black ground wire from module wire harness is grounded to
metal chassis of appliance.
Verify that incoming gas line ball valve is "open". Verify that inlet
pressure reading is within acceptable limits.
Verify gap of igniter to right side of pilot hood. The gap should be
approximately .17 in. or 1/8 in. (3 mm).
Verify module is securely grounded to metal chassis of appliance.
Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module.
If below 1.5 volts, replace module. If 1.5 volts or greater, replace
valve.
Verify all connections to wiring diagram in manual. Verify connec-
tions underneath pilot assembly are tight. Verify fl ame sense or ig-
niter wires are not grounding out to metal chassis, pilot burner, pilot
enclosure or screen if present, or any other metal object.
With fi xed glass assembly in place, verify that fl ame is engulfi ng
fl ame sensing rod on left side of pilot hood. Flame sensing rod
should glow shortly after ignition. With a multi-meter, verify that cur-
rent in series between module and sense lead is at least 0.14 mi-
croamps. Verify correct pilot orifi ce is installed and gas inlet is set to
pressure specifi cations. Clean fl ame sensing rod with emery cloth
to remove any contaminants that may have accumulated on fl ame
sensing rod.
Verify module is securely grounded to metal chassis of appliance.
Verify that wire harness is fi rmly connected to the module.
Verify that ceramic insulator around the fl ame sensing rod is not
cracked, damaged, or loose. Verify connection from fl ame sensing
rod to white sensor wire. Clean fl ame sensing rod with emery cloth
to remove any contaminants that may have accumulated on fl ame
sensing rod. Verify continuity with a multi-meter with ohms set at
lowest range. Replace pilot if any damage is detected.