Heatiator NDI35-SPFK, NDI30-SPFK owner manual Troubleshooting, Standing Pilot Ignition System

Page 36

13 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 technician in the diagnosis of a problem and the corrective action to be taken. This troubleshooting guide can only be used by a qualifi ed technician. Contact your dealer to arrange a service call by a qualifi ed technician.

A. Standing Pilot Ignition System

 

Symptom

Possible Causes

Corrective Action

1. After repeated triggering

A. No gas or low gas pressure.

Check the remote shut-off valves from the appliance. Usually, there

 

of the red or black piezo

 

is a valve near the gas main. There can be more than one valve be-

 

ignitor button, the spark

 

tween the appliance and the main.

 

ignitor will not light the

 

 

 

B. No lp in tank.

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

 

pilot.

 

C. Ignitor.

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

 

 

 

 

 

wire is properly connected, replace the ignitor. Verify that there is no

 

 

 

short in electrode wire.

 

 

D. Pilot or misaligned electrode

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

 

 

(spark at electrode).

trigger the piezo ignitor button again. If the pilot lights, an improper

 

 

 

gas/air mixture caused the bad lighting and a longer purge period is

 

 

 

recommended. If the pilot will not light, ensure the gap at the elec-

 

 

 

trode and pilot is one-eighth in. to have a strong spark. If the gap is

 

 

 

OK, replace the pilot.

2.

The pilot will not stay lit

A. Thermocouple.

Check that the pilot fl ame impinges on the thermocouple. Adjust the

 

after carefully following

 

pilot for proper fl ame impingement.

 

the lighting instructions.

 

Ensure that the thermocouple connection at the gas valve is fully in-

 

 

 

 

 

 

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

 

 

 

Verify proper voltage output from the thermocouple to the valve.

 

 

 

Place one millivolt meter lead wire on the thermocouple copper lead.

 

 

 

Place the second lead wire on the solder button on the back of the

 

 

 

valve (blue wire). Start the pilot and hold the valve knob in. The mil-

 

 

 

livolt reading should read 8-16 millivolts. If millivolt reading is less

 

 

 

than 8 millivolts, replace thermocouple.

 

 

B. Improper gas inlet pressure.

Natural gas should be 5-10 in. w.c. LP should be 11-13 in. w.c. Verify

 

 

 

pressure with manometer.

 

 

C. Valve.

If the thermocouple is producing 8-16 millivolts, replace control valve.

 

 

 

 

3.

The pilot is burning,

A. ON/OFF switch or wires.

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

 

there is no burner

 

the jumper wires across the terminals at the ON/OFF switch. If the

 

fl ame, the valve knob is

 

burner comes on, replace the ON/OFF switch. If the ON/OFF switch

 

in the ON position, and

 

is OK, place the jumper wires across the ON/OFF switch wires at the

 

the ON/OFF switch is in

 

gas valve. If the burner comes on, the wires are faulty or connections

 

the ON position.

 

are bad.

 

 

B. Thermopile may not be gen-

Check that the pilot fl ame impinges thermopile properly.

 

 

erating suffi cient 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 350 mil-

 

 

 

livolts 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 thermopile if the reading is below the specifi ed mini-

 

 

 

mum.

 

 

 

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 350 millivolts minimum. Replace the thermopile if the read-

 

 

 

ing is below the minimum.

 

 

 

 

36

Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11

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Contents Models What to do if you smell gasHOT Surfaces Congratulations Homeowner Reference InformationXxxxxxxx Table of Contents User GuideLimited Lifetime Warranty Limited Lifetime WarrantyWarranty Conditions Listing and Code Approvals Gas Fireplace Safety Operating Instructions User GuideYour Fireplace Fixed Glass Assembly Remote Controls, Wall Controls and Wall SwitchesClear Space Before Lighting FireplaceLighting Instructions IPI Final inspection byWhat to do if YOU Smell GAS GAS ValveFor Your Safety Read Before Lighting Lighting Instructions Lighting Instructions Standing PilotFrequently Asked Questions Issue SolutionsAfter Appliance is Lit Maintenance and Service Maintenance Tasks-HomeownerGlass Cleaning Remote ControlMaintenance Tasks-Service Technician Gasket Seal and Glass Assembly InspectionVenting LogsBurner Ignition and Operation Standing Pilot Flame PatternsGetting Started Typical Appliance SystemDesign and Installation Considerations Tools and Supplies NeededInspect Appliance and Components Fireplace Size Requirements Minimum Fireplace OpeningTOP View Front View Side View Minimum Fireplace Size NDI35 NDI30Mantel and Wall Projections Side View TOP ViewTermination Locations Vent Termination Minimum ClearancesInstallation Preparation Installing Vent Pipe and Appliance Connecting Vent PipeVent Limits Venting ComponentsPlacing, Securing and Leveling the Appli- ance fi replace openingInstalling Adaptor and Termination Cap MasonryFactory Built Wood Burning Damper Flashing Kit OptionalGas Information Fuel ConversionGas Pressure Gas ConnectionWiring Requirements Standing Pilot Ignition System WiringIntelliFire Ignition System Wiring Electrical InformationPilot Assembly Thermocouple Thermopile REDValve WHT Optional Accessories Requirements Blower Plug 120V Existing Outlet Temperature Sensor SwitchInstallation for Fan Optional Finishing Clearances to Mantels or other Combustibles above ApplianceAppliance Setup Log Set Assembly LOGS-NDI30 Models NDI30, NDI30-SP Install the Log AssemblyLOG #5 LOG #6LOG Log Set Assembly LOGS-NDI35 Models NDI35, NDI35-SP Log Set InstalledGrate Tine Slot Air Shutter Setting Air Shutter SettingsNDI30 NDI35 Troubleshooting Symptom Possible Causes Corrective ActionStanding Pilot Ignition System Troubleshooting Symptom Possible Cause Corrective ActionIntelliFire Ignition System Ues to spark, and main Appliance Dimension Diagram Model DimensionsReference Materials Vent Kits Components Direct Vent Flex Liner KitsContact Information
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