Hearth and Home Technologies SL-550TR-D Troubleshooting, Standing Pilot Ignition System

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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 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. Standing Pilot Ignition System

Symptom

Possible Causes

Corrective Action

1. After repeated triggering

a. Defective ignitor.

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

of the red or black piezo

 

wire is properly connected, replace the ignitor.

ignitor button, the spark

 

 

b. Defective pilot or misaligned

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

ignitor will not light the pilot.

 

electrode (spark at electrode).

trigger the red piezo ignitor button again. If the pilot lights, an im-

 

 

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

 

 

period is recommended. If the pilot will not light, ensure the the gap

 

 

at the electrode and pilot is one-eighth (1/8) inch to have a strong

 

 

spark. If the gap is OK, replace the pilot.

 

c. No gas or low gas pressure.

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

 

 

is a valve near the gas main. There can be more than one (1) valve

 

 

between the fireplace 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 flame impinges on the thermocouple. Clean

after carefully following the

 

and/or adjust the pilot for maximum flame impingement.

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 thermcouple 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,

a. ON/OFF switch or wires

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

there is no burner flame ,

defective.

the jumper wires across the terminals at the switch. If the burner

the valve knob is in the ON

 

comes on, replace the defective switch. If the switch is OK, place the

position, and the ON/OFF

 

jumper wires across the switch wires at the gas valve. If the burner

switch is in the ON position.

 

comes on, the wires are faulty or connections are bad.

 

 

 

 

b. Thermopile may not be gener-

If the pilot flame is not close enough physically to the thermopile,

 

ating sufficient millivoltage.

adjust the pilot flame.

 

 

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 millvolt 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 if the reading is below the

 

 

specified minimum.

 

 

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

 

 

from the valve. Take a reading at the thermopile leads. The read-

 

 

ing should be 325 millivolts minimum. Replace the thermopile if the

 

 

reading is below the minimum.

 

 

 

Heat & Glo • SL-550 / 750 / 950TR-D • InD • 2044-985 Rev. M • 10/06

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Contents What to do if you smell gas Models SL-550TR-D SL-750TR-D SL-950TR-DHomeowner Reference Information CongratulationsTable of Contents Listing and Code Approvals Requirements for the Commonwealth of Massachusetts Getting Started Design and Installation ConsiderationsInspect Appliance and Components Tools and Supplies NeededModels Framing and ClearancesSelecting Appliance Location Clearances Constructing the Appliance ChaseClearances to Mantels or other Combustibles above Appliance Mantel ProjectionsSee .4 for specific clearances Termination LocationsVent Termination Minimum Clearances Minimum Clearances for Termination Alcove ApplicationsVent Table Key Vent Information and DiagramsUse of Elbows Measuring StandardsUse of Flex Vent Top Vent Horizontal Termination Venting with 1 elbow NG Vent DiagramsMinimum Top Vent Horizontal Termination Venting with 2 elbows NGTop Vent Horizontal Termination Venting with 3 elbows NG Components only Baffle InstructionTop Vent Vertical Termination Venting with 2 elbows Propane Top Vent Vertical Termination Venting with 2 elbows NGTop Vent Vertical Termination Venting with 3 elbows Propane Top Vent Vertical Termination Venting with 3 elbows NGH1 = 9 in mm Maximum Rear Vent Horizontal Termination Venting with 3 elbows Rear Vent Horizontal Termination Venting with 2 elbowsRear Vent Vertical Termination Venting with 2 elbows Rear Vent Vertical Termination Venting with 1 elbowV1 MIN H1 MAX H2 MAX Rear Vent Vertical Termination Venting with 3 elbowsPipe Clearances to Combustibles Wall Penetration Framing Vent Clearances and FramingCombustible Wall Penetration Non-Combustible Wall PenetrationVertical Penetration Framing Installing the Ceiling FirestopInstalling Attic Shield Choosing the Top or Rear Vent Appliance PreparationCut the metal retaining band and fold the sides out Rear VentFire Risk Prevent contact with sagging, loose insulation Securing and Leveling the ApplianceAssembly of Vent Sections DVP Pipe only Installing Vent PipeAttaching Vent to the Firebox Assembly Assembling Pipe SectionsAssembling DVP-12A Slip Sections Assembling Minimum Installations MI SectionsDVP Pipe only Disassembly of Vent SectionsSecuring the Vent Sections Vertical Sections Horizontal SectionsInstall Support Brackets Assembly of Vent Sections SL Series Pipe onlyAttach the First Vent Component to Starting Collars Continue Adding Vent ComponentsHeat Shield Requirements for Horizontal Termination Installing the Horizontal Termination CapFire Risk. Explosion Risk 16 Minimum Height from Roof to Lowest Discharge Opening Installing Roof Flashing and Vertical Termination Cap19 Assembling the Storm Collar Around the Pipe Assembling and Installing Storm CollarFuel Conversions Gas Connection Gas InformationGas Pressures Pressure Natural Gas PropaneHigh Altitude Installations Electrical Information Recommendation for WireConnecting to the Appliance Intellifire Ignition System Wiring Standing Pilot Ignition System WiringWall Switch Installation for Fan Optional Junction Box InstallationSee for combustible/non-combustible definitions FinishingFacing Material Clean the Appliance Appliance SetupAccessories Remove Shipping MaterialsPositioning the Logs Log Set Assembly LOGS-SL550-D Models SL-550TR-DTAB Locator Log Set Assembly LOGS-SL750-D Models SL-750TR-D, SL-950TR-D Notches Raised Flat Spots Removing Glass Assembly Glass AssemblyReplacing Glass Assembly Shutter SettingsBefore Lighting Appliance Operating InstructionsTurn on all electric power to the appliance Turn off all electric power to the applianceLighting Appliance This appliance is equipped with an ignitionStanding Pilot Ignition For Your Safety Read Before Lighting InstructionsAfter Appliance is Lit Frequently Asked QuestionsInitial Break-in Procedure Standing Pilot Ignition System TroubleshootingSymptom Possible Causes Corrective Action Symptom Possible Cause Corrective Action TroubleshootingSympton Possible Cause Corrective Action Intellifire Ignition SystemSure must not exceed 14 in. W.C Maintaining and Servicing Appliance Recommend addition of screen if one is not present Inspect Maintenance TasksReference Materials Appliance Dimension DiagramDVP45 45 Elbow Vent Components DiagramsDVP-TRAP 367 mm 13-1/413-7/8 352 mm 241 mm 356 mm10-1/2 98 mmVertical Termination Cap 184 mm 12-1/2 318 mm 133 mm Vertical Termination Cap High windPipe Length/Inches SL Series Vent ComponentsLog Set Assembly Service PartsAdditional service part numbers may appear on the following Service Parts List215 SL-750TR-DSL-750TR-D Additional service part numbers may appear on the following216 SL-950TR-DService Parts List Intermittent Pilot Ignition SL-550 / 750 / 950TR-D-IPISL-550 / 750 / 950TR-D Limited Lifetime Warranty Heat & GLO GAS Appliance Products Limited Lifetime WarrantyContact Information

SL-950TR-D, SL-750TR-D, SL-550TR-D specifications

Hearth and Home Technologies has consistently pushed the boundaries of modern heating solutions, and their SL-550TR-D, SL-750TR-D, and SL-950TR-D gas fireplace inserts are prime examples of this innovation. Designed to enhance both the aesthetic appeal and functionality of any living space, these units are ideal for homeowners seeking efficient, reliable heating without sacrificing style.

Starting with the SL-550TR-D, this model features a compact design that is perfect for smaller rooms while still delivering impressive heat output. With a BTU range of 25,000, it efficiently warms spaces without overwhelming them. The SL-550TR-D uses advanced combustion technology, ensuring a clean and efficient burn that minimizes emissions. The large viewing area, complemented by a contemporary linear design, allows for an unobstructed flame view, making it an attractive centerpiece in any room.

Moving on to the SL-750TR-D, this insert expands on the features of the SL-550TR-D, with a higher BTU output of 35,000, making it suitable for larger spaces or homes in colder climates. It also includes an adjustable flame height feature, allowing users to customize the ambiance and heat level to their liking. Additionally, the SL-750TR-D comes equipped with a remote control, providing convenience and ease of use. Its sleek design and modern aesthetics make it an appealing choice for contemporary home settings.

Finally, the SL-950TR-D takes efficiency and style to the next level with a robust BTU output of 45,000. This model is designed for maximum warmth and efficiency, catering to expansive living areas. Its enhanced airflow management system ensures even heat distribution throughout the space. Moreover, the SL-950TR-D offers customizable options such as LED lighting, creating a stunning visual effect that complements the flickering flames.

All three models are equipped with Hearth and Home Technologies' patented Power Vent technology, allowing for flexible installation options, even in challenging spaces. This system provides the ability to vent vertically or horizontally, granting homeowners the freedom to optimize their fireplace's location.

In conclusion, the SL-550TR-D, SL-750TR-D, and SL-950TR-D gas fireplace inserts offer unparalleled heating solutions tailored to various needs and preferences. Their combination of high efficiency, elegant design, and user-friendly features make them standout choices for anyone looking to enhance their home’s comfort and style.
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