Hearth and Home Technologies 42-B, 42H-B owner manual Troubleshooting, Intellifire Ignition System

Page 23

11 Troubleshooting

With proper installation, operation and maintenance your gas appliance will provide years of trouble-free service. If you do experience a problem, this troubleshooting guide will assist a qualified service person in the diagnosis of a problem and the corrective action to be taken. This troubleshooting guide can only be used by a qualified service technician.

A. Intellifire Ignition System

 

Symptom

 

Possible Causes

Corrective Actions

1.

The ignitor/module makes

A.

Incorrect wiring.

Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are connected to the

 

noise, but no spark.

 

 

correct terminals on the module and the pilot assembly. Reversed wires at the module

 

 

 

 

may cause the system to make a sparking noise, but the spark may not be present at

 

 

 

 

pilot hood.

 

 

B.

Loose connections or

Verify there are no loose connections or electrical shorts in wiring from module to

 

 

 

electrical shorts in the

pilot assembly. The rod closest to the pilot hood should be ignitor. Verify connections

 

 

 

wiring.

underneath pilot assembly are tight; also verify the connections are not grounding out

 

 

 

 

to the metal chassis, pilot burner, pilot enclosure, mesh screen if present, or any other

 

 

 

 

metal object.

 

 

C.

Ignitor gap is too large.

Verify gap of ignitor to pilot hood. The gap should be approximately .17 in. or 1/8 in.

 

 

D.

Faulty 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. Hold ground

 

 

 

 

wire about 3/16 in. away from “I” terminal on module. If there is no spark at “I” terminal,

 

 

 

 

module must be replaced. If there is a spark at “I” terminal, module is fine. Inspect pilot

 

 

 

 

assembly for shorted sparker wire or cracked insulator around electrode.

2.

Pilots won’t light, there is

A.

Transformer installed

Verify that transformer is installed and plugged into module. Check voltage of

 

no noise or spark.

 

incorrectly.

transformer under load at space connection on module with ON/OFF switch in ON

 

 

 

 

position. Acceptable readings of a good transformer are between 3.2 and 2.8 volts AC.

 

 

B.

A shorted or loose

Remove and reinstall the wiring harness that plugs into module. Verify there is a tight

 

 

 

connection in wiring

fit. Verify pilot assembly wiring to module. Remove and verify continuity of each wire in

 

 

 

configuration or wiring

wiring harness.

 

 

 

harness.

 

 

 

C.

Improper wall switch

Verify wall switch is wired correctly.

 

 

 

wiring.

 

 

 

D.

Module not grounded.

Verify black ground wire from module wire harness is grounded to metal chassis of

 

 

 

 

appliance.

 

 

E.

Faulty 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. Hold ground

 

 

 

 

wire about 3/16 in. away from “I” terminal on module. If there is no spark at “I” terminal

 

 

 

 

module must be replaced. If there is a spark at “I” terminal, module is fine. Inspect pilot

 

 

 

 

assembly for shorted sparker wire or cracked insulator around electrode.

3.

Pilot lights but continues

A.

A shorted or loose

Verify all connections to wiring diagram in manual. Verify connections underneath pilot

 

to spark, and main burner

 

connection in sensor rod.

assembly are tight. Verify connections are not grounding out to metal chassis, pilot

 

will not ignite. (If the pilot

 

 

burner, pilot enclosure or screen if present, or any other metal object.

 

continues to spark after

B.

Poor flame rectification or

Verify flame is engulfing sensor rod. If the pilot assembly does not have a ground

 

the pilot flame has been

 

 

contaminated sensor rod.

strap, consider installing one to increase flame rectification. Verify correct pilot orifice

 

lit, flame rectification has

 

 

 

 

is installed and inlet gas specifications are met. Flame carries rectification current, not

 

not occurred.)

 

 

 

 

 

the gas. If flame lifts from pilot hood, the circuit is broken. A wrong orifice or too high

 

 

 

 

 

 

 

 

an inlet pressure can cause pilot flame to lift. The sensor rod may be contaminated.

 

 

 

 

Clean sensor rod with emery cloth.

 

 

C.

Module is not grounded.

Verify that module is securely grounded to metal chassis of appliance. Verify that the

 

 

 

 

wire harness is firmly connected to module.

 

 

D.

Damaged pilot assembly

Verify that ceramic insulator around the sensor rod is not cracked, damaged, or loose.

 

 

 

or dirty sensor rod.

Verify connection from sensor rod to white sensor wire. Clean sensor rod with emery

 

 

 

 

cloth to remove any contaminants that may have accumulated on sensor rod. Verify

 

 

 

 

continuity with a multimeter with ohms set at lowest range.

 

 

E.

Faulty 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. Hold ground

 

 

 

 

wire about 3/16 in. away from “I” terminal on module. If there is no spark at “I”

 

 

 

 

terminal, module must be replaced. If there is a spark at “I” terminal, module is fine.

 

 

 

 

Inspect pilot assembly for shorted sparker wire or cracked insulator around electrode.

4.

Pilot sparks, but pilot will

A.

Correct gas supply.

Verify that incoming gas line ball valve is “open”. Verify that inlet pressure reading is

 

not light.

 

 

within acceptable limits, inlet pressure must not exceed 14 in. w.c.

 

 

B.

Ignitor gap is too large.

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

 

 

C.

Module is not grounded.

Verify module is securely grounded to metal chassis of appliance.

 

 

D.

Module voltage output/

Replace module.

 

 

 

valve/pilot solenoid ohms

 

 

 

 

readings.

 

Outdoor Lifestyles by Hearth & Home Technologies Inc. • Dakota 42-B/Dakota 42H-B • 4036-909 • Rev L 10/09 23

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Contents Hot glass will cause burns This appliance must be installed outsideWhat to do if you smell gas Listing Label Information/Location CongratulationsTable of Contents Listing and Code Approvals Appliance Certification BTU SpecificationsGlass Specifications High Altitude InstallationsMoisture Resistance Design and Installation ConsiderationsGetting Started Any such action may cause a fire hazard Tools and Supplies NeededInspect Appliance and Components Fire Risk Odor Risk Framing and ClearancesSelect Appliance Location Fire RiskMantel Projections ClearancesVent Termination Minimum Clearances Termination LocationsRemove Logs and Shipping Cover Securing and Leveling ApplianceFire Risk Explosion Risk Gas InformationFuel Conversion Gas Connection Gas PressureFire Risk Explosion Risk Asphyxiation Risk Lift Out Doors Valve AccessShock Risk Intellifire Ignition System WiringElectrical Information Finishing Facing Material Noncombustible Facing DiagramPositioning the Logs Appliance SetupClean the Appliance Grate Assembly PlacementFront Log SRV727 Placing Lava Rock Glass AssemblyReinstall Door Lock Before Lighting Appliance Operating InstructionsDo not connect 110 VAC to the control valve Lighting the ApplianceAfter the Appliance is Lit Frequently Asked QuestionsFire Risk High Temperatures Issue SolutionsIntellifire Ignition System TroubleshootingSymptom Possible Causes Corrective Actions Maintaining and Servicing the Appliance Tools Required Valve Service and ReplacementGround Wire Inspect Maintenance Tasks Maintenance and Service TasksReference Materials Appliance Dimension DiagramDAKOTA42-B, DAKOTA42H-B Service Parts ListService Parts List#1BoxSet711Log-4036 This page intentionally left blank This page intentionally left blank Warranty Coverage This warranty is void if WarrantyContact Information DDO is N CAO T R D
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