Heatiator NNXT3933IL, NNXT4236I Troubleshooting, Intellifire Plus Intermittent Ignition System

Page 66

16 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 technician 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. Con- tact your dealer to arrange a service call by a qualified service technician.

A. Intellifire Plus™ Intermittent Ignition System

Symptom

Possible Cause

Corrective Action

 

 

 

1. Pilot won’t light.

A. Incorrect wiring.

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

The ignitor/module

 

connected to correct terminals on module and pilot assembly.

makes noise, but no

 

 

B. Loose connections or electrical

Verify no loose connections or electrical shorts in wiring from mod-

spark.

 

shorts in the wiring.

ule to pilot assembly. Verify connections underneath pilot assembly

 

 

are tight; also verify igniter and flame sense wires are not grounding

 

 

out to metal chassis, pilot burner, pilot enclosure, mesh screen if

 

 

present, or any other metal object.

 

 

 

 

C. Ignitor gap is too large.

Verify gap of igniter to right side of pilot hood. The gap should be

 

 

approximately .17 in. or 1/8 in. (3 mm).

 

 

 

2. Pilot won’t light,

A. No power or transformer installed

Verify that transformer is installed and plugged into module. Check

there is no noise or

incorrectly.

voltage of transformer at connection to module. Acceptable read-

spark.

 

ings of a good transformer are between 6.4 and 6.6 volts AC.

 

 

 

 

B. A shorted or loose connection in

Remove and reinstall the wiring harness that plugs into module.

 

wiring configuration or wiring har-

Verify there is a tight fit. Verify pilot assembly wiring to module. Re-

 

ness.

move and verify continuity of each wire in wiring harness. Replace

 

 

any damaged components.

 

 

 

 

C. Improper wall switch wiring.

Verify that 120/VAC power is “ON” to junction box.

 

 

 

 

D. Module not grounded.

Verify black ground wire from module wire harness is grounded to

 

 

metal chassis of appliance.

 

 

 

3. Pilot sparks, but

A. Gas supply.

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

Pilot will not light.

 

pressure reading is within acceptable limits.

 

 

 

 

B. Ignitor gap is too large.

Verify gap of igniter to right side of pilot hood. The gap should be

 

 

approximately .17 in. or 1/8 in. (3 mm).

 

 

 

 

C. Module is not grounded.

Verify module is securely grounded to metal chassis of appliance.

 

 

 

 

D. Pilot valve solenoid

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.

 

 

 

66

Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12

Image 66
Contents Installation and Operation ModelsCongratulations Homeowner Reference InformationTable of Contents Finishing Limited Lifetime Warranty Limited Lifetime WarrantyWarranty Conditions Listing and Code Approvals Requirements for the Commonwealth of Massachusetts Gas Fireplace Safety Operating InstructionsYour Fireplace Fan Kit optional Fixed Glass AssemblyRemote Controls, Wall Controls and Wall Switches Clear SpaceIPI Battery Tray/Battery Installation Control Module OperationBefore Lighting Fireplace Lighting Instructions IPI Final inspection byFrequently Asked Questions Initial Break-in ProcedureAfter Fireplace is Lit Maintenance and Service Maintenance Tasks-HomeownerMaintenance Tasks-Qualified Service Technician Getting Started Typical Appliance SystemDesign and Installation Considerations Tools and Supplies NeededInspect Appliance and Components Framing and Clearances Select Appliance LocationConstruct the Appliance Chase Clearances In. to Level of StandoffsMantel and Wall Projections MantelsMantel Legs or Wall Projections Termination Locations Vent Termination Minimum ClearancesMinimum Clearances for Termination Vent Table Key Vent Information and DiagramsApproved Pipe Use of ElbowsVent Diagrams Top Vent Horizontal TerminationOne Elbow Two 45 Elbows replacing One 90 Elbow Two ElbowsNo Elbow Top Vent Vertical TerminationThree Elbows TionsLower & twist pull out 12 ft 3.66 m min 60 ft 18.29 m max 12 ft 3.66 m min ft 18.29 m max Rear Vent Horizontal Termination One 45 ElbowInstalled Horizontally Rear Vent Vertical Termination Min Ft 1.83 m max 12 ft 3.66 m min Wall Penetration Framing Vent Clearances and FramingPipe Clearances to Combustibles Combustible Wall PenetrationInstall the Ceiling Firestop Ceiling firestop Must be used between floors and atticsInstall Attic Insulation Shield Flat Ceiling InstallationVaulted Ceiling Installation Appliance Preparation Top VentRear Vent It Cannot be changed at a later time BasketSecure and Level the Appliance 11 Proper Positioning and Securing of an ApplianceAssemble Vent Sections DVP Only Install Vent PipeAttach Pipe to the Firebox Assembly Assemble Pipe SectionsAssemble Vent Sections SLP Only Assemble Slip SectionsSecure the Vent Sections Disassemble Vent SectionsInstall Decorative Ceiling Components SLP only Install Metal Roof Flashing Assemble and Install Storm CollarInstall Vertical Termination Cap Install Decorative Wall Components SLP onlyHeat Shield Requirements for Horizontal Termination Install Horizontal Termination Cap Failure to maintain overlap may cause overheating and fireField Constructed Shrouds ShroudsHHT Shrouds Open Top Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHWMailbox Style Shroud Dimensions Min. Base Dims Gas Pressure Gas InformationFuel Conversion Gas ConnectionOptional Accessories Requirements Wiring RequirementsIntellifire Plus Ignition System Wiring Electrical InformationElectrical Service and Repair RC200 Wiring DiagramJunction Box Installation Wall Switch Installation for Fan OptionalRemote Control Installation & Operations RC200Installation of Remote Control Housing Programming the RC200 to the Control Module Power Outage Finishing Facing Material Do not RemoveAppliance Setup Place the Rockwool Clean the Appliance Assemble LogsAccessories Place the Lava RockReplacing Fixed Glass Assembly Air Shutter SettingInstall the Control Heat Shield Install HoodInstall Control Heat Shield Remove Screen ProtectorInstall Floor Cover Install the floor cover as shown in FigureClose the Screen Assembly Hang Screen on Shoulder ScrewsTroubleshooting Intellifire Plus Intermittent Ignition SystemIntellifire Plus Intermittent Pilot Ignition System Appliance Dimension Diagram Reference MaterialsVent Components Diagrams DVP45DVP-TRAPFL 229 mm DVP-TRAP DVP-HRC-SS  B. Vent Components Diagrams SLP Series Vent ComponentsSL-2DVP SLK-SNKD DVP-FBHT Log Set Assembly Service PartsPart number list on following Stocked At DepotNNXT4236I, NNXT4236IL #16 Ignition Control Assembly #15 Valve AssemblyOptional Components Contact Information Do not Discard this Manual