Heatiator GB4336 Troubleshooting, A. Standing Pilot Ignition System, Symptom, Possible Causes

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14 Troubleshooting

14 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 qualifi ed service person in the diagnosis of a problem and the corrective action to be taken. This troubleshooting guide can only be used by a qualifi ed service technician.

A. Standing Pilot Ignition System

 

Symptom

 

Possible Causes

Corrective Actions

1.

After repeated triggering

A.

Defective ignitor.

Check the spark at the electrode and pilot. If there is no spark and the

 

of the red or black piezo

 

 

electrode wire is properly connected, replace the ignitor.

 

ignitor button, the spark

 

 

 

 

B.

Defective pilot or

Using a match, light the pilot. If the pilot lights, turn off the pilot and trigger

 

ignitor will not light the

 

 

misaligned electrode

the red piezo ignitor button again. If the pilot lights, an improper gas/air

 

pilot.

 

 

 

(spark at electrode).

mixture caused the bad lighting and a longer purge period is recommended.

 

 

 

 

 

 

 

If the pilot will not light, ensure the gap at the electrode and pilot is 1/8 in. to

 

 

 

 

have a strong spark. If the gap is OK, replace the pilot.

 

 

C.

No gas or low gas

Check the remote shut-off valves from the appliance. There is usually a

 

 

 

pressure.

valve near the gas main. There can be more than one valve between the

 

 

 

 

appliance and the main.

 

 

D.

No LP in tank.

Check the LP (propane) tank. You may be out of fuel.

2.

The pilot will not stay lit

A.

Defective thermocouple.

Check that the pilot fl ame impinges on the thermocouple. Clean and/or

 

after carefully following

 

 

adjust the pilot for maximum fl ame impingement.

 

the lighting instructions

 

 

Ensure that the thermocouple connection at the gas valve is fully inserted

 

 

 

 

 

 

 

 

and tight (hand tighten plus 1/4 turn).

 

 

 

 

Disconnect the thermocouple from the valve, place one millivolt meter lead

 

 

 

 

wire on the tip of the thermocouple and the other meter lead wire on the

 

 

 

 

thermocouple copper lead. Start the pilot and hold the valve knob in. If the

 

 

 

 

millivolt reading is less than 15mV, replace the thermocouple.

 

 

B.

Defective valve.

If the thermocouple is producing more than 15 millivolts, replace faulty valve.

3.

The pilot is burning, there

A.

ON/OFF switch or wires

Check the ON/OFF switch and wires for proper connections. Place the

 

is no gas burning, the

 

are defective.

jumper wires across the terminals at the switch. If the burner comes on,

 

valve knob is in the ON

 

 

replace the defective switch. If the switch is OK, place the jumper wires

 

position, and the ON/

 

 

across the switch wires at the gas valve. If the burner comes on, the wires

 

OFF switch is in the ON

 

 

are faulty or connections are bad.

 

position.

B.

Thermopile may not be

If the pilot fl ame is not close enough physically to the thermopile, adjust the

 

 

 

 

 

generating suffi cient

pilot fl ame.

 

 

 

millivoltage.

Be sure the wire connections from the thermopile at the gas valve terminals

 

 

 

 

are tight and that the thermopile is fully inserted into the pilot bracket.

 

 

 

 

Check the thermopile with a millivolt meter. Take the reading at TH-TP&TP

 

 

 

 

terminals of the gas valve. The meter should read 325 millivolts minimum

 

 

 

 

while holding the valve knob depressed in the pilot position, with the pilot lit,

 

 

 

 

and the ON/OFF switch in the OFF position. Replace the faulty thermopile of

 

 

 

 

the reading is below the specifi ed minimum.

 

 

 

 

With the pilot in the ON position, disconnect the thermopile leads from

 

 

 

 

the valve. Take a reading at the thermopile leads. The reading should be

 

 

 

 

325 millivolts minimum. Replace the thermopile if the reading is below the

 

 

 

 

minimum.

 

 

C.

Defective valve.

Turn the valve knob to the ON position. Place the ON/OFF switch in the ON

 

 

 

 

position. Check the millivolt meter at the thermopile terminals. The millivolt

 

 

 

 

meter should read greater than 125mV. If the reading is acceptable, and if

 

 

 

 

the burner does not come on, replace the gas valve.

 

 

D.

Plugged burner orifi ce.

Check the burner orifi ce for stoppage. Remove stoppage.

 

 

E.

Wall switch or wires are

Follow the corrective action in Symptom and Possible Cause 1.A. above.

 

 

 

defective.

Check the switch and wiring. Replace where defective.

Heatilator • GB4336/GB4992 • 4003-085 Rev H • 04/06

33

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Contents Models GB4336, GB4336L GB4336I, GB4336IL What to do if you smell gasGB4942, GB4942L GB4942I, GB4942IL B-VentGas ApplianceListing Label Information/Location Homeowner Reference InformationCongratulations Gas Type5 Vent Information and Diagrams Table of Contents8 Installing Vent Pipe 12 Appliance Setup1Listing and Code Approvals D. High Altitude InstallationsA. Appliance Certification C. BTU Specifications2Getting Started A. Design and Installation ConsiderationsB. Negative Pressure Negative PressureAsphyxiation Risk C. Tools and Supplies Needed D. Inspect the Appliance and ComponentsAny such action may cause a fire hazard 3Framing and Clearances A. Select Appliance LocationFire Risk Fire Risk B. Construct the Appliance ChaseFire Risk Odor Risk C. ClearancesTop of Appliance Drywall A 48 in 1219 mm B max D. Mantel ProjectionsMantel Leg or Perpendicular Wall A1 in. 25mm min to perpendicular wall4Termination Locations A. Vent Termination Minimum ClearancesFire Risk Explosion Risk A. Vent Guidelines 5Vent Information and DiagramsB. Vent System Configuration Fire Risk Asphyxiation RiskFire Risk Explosion Risk Vent supportsA. Pipe Clearances to Combustibles 6Vent Clearances and FramingB. Wall Penetration Framing C. Vertical Penetration FramingAppliance Preparation A. Installing Outside Air Kit Damper AssemblyRisk of Smoke Spillage Fire Risk Asphyxiation RiskC. Securing and Leveling Appliance B. Gas and Electrical ConnectionsNailing Tabs both sidesB. Attach Vent to Firebox Assembly 8Installing Vent PipeA. Assemble Vent Sections C. Securing Vent SectionsA. Fuel Conversion 9Gas InformationC. Gas Connection B. Gas PressureFire Risk Explosion Risk D. High Altitude InstallationsGas build-upduring line purge may ignite Fire Risk Explosion Risk Asphyxiation RiskB. Connecting to the Appliance A. Recommendation for WireC. Intellifire Ignition System Wiring 10 Electrical InformationD. Standing Pilot Ignition System Wiring Optional Accessories RequirementsOptional Junction Box Wiring E. Junction Box Installation A. Mantel Projections 11 FinishingB. Facing Material Fire RiskB. Clean the Appliance 12 Appliance SetupC. Accessories D.Install the RefractoryF. Log Removal/Replacement G. Glass Doors I. Air Shutter SettingH. Hood Fire Risk Combustion Fumes RiskA. Before Lighting Appliance 13 Operating InstructionsFire Risk Burn Risk HOT! DO NOT TOUCH SEVERE BURNS MAY RESULTB. Check Appliance Draft C. High Limit Safety SwitchNote to Qualified Service Technician WithoutWARNING RISK OF FIRE D. Lighting the ApplianceFOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONSNATURAL GAS FOR YOUR SAFETY READ BEFORE LIGHTINGLIGHTING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCEE. After the Appliance is Lit F. Frequently Asked QuestionsInitial Break-inProcedure IssueA. Standing Pilot Ignition System 14 TroubleshootingSymptom Possible CausesPossible Causes SymptomCorrective Actions Frequent pilot outageSymptom B. Intellifire Ignition SystemPossible Causes Corrective ActionsPossible Causes SymptomCorrective Actions Pilot sparks, but pilot willClean 15 Maintaining and Servicing the ApplianceWhen cleaning glass door Risk of injury or property damageMaintenance Tasks Maintenance and Service TasksInspect one is not present16 Reference Materials A. Appliance Dimension DiagramFigure 16.1 Appliance Dimensions ModelB. Service Parts List Service PartsGB4336 SERIES Exploded Parts DiagramGB4336 SERIES Service PartsDescription of Part GB4336Intermittent Pilot Valve Assembly Standing Pilot Valve AssemblyService Parts Service Parts ListGB4336 SERIES Service PartsDescription of Part GB4336Service Parts GB4942 SERIESExploded Parts Diagram Beginning Manufacturing Date 1/19/04GB4942 SERIES Service Parts# Description of Part GB4942Standing Pilot Valve Assembly Service PartsIntermittent Pilot Valve Assembly Service Parts ListGB4942 SERIES Service Parts# Description of Part GB4942ID4 Insulated Duct C. Optional Componentsin. 102 mm UD4 Uninsulated Duct 4 in. 102 mm 42 in 1067 mmThis page intentionally left blank This page intentionally left blank Gas Appliance Fireplace Limited Lifetime Warranty D. Limited Lifetime WarrantyLimited Lifetime Warranty 1 Year Limited WarrantyHearth & Home Technologies Inc E. Contact Information1915 W. Saunders Street Mt. Pleasant, Iowa DO NOT DISCARD THIS MANUAL