Vanguard Heating VDDVF36PN/PP Troubleshooting, Observed Problem Possible Cause Remedy

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® DIRECT-VENT GAS FIREPLACE

VDDVF36PN/PP and VDDVF36STN/STP Series

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

Note: Before troubleshooting the system, make sure the gas shut-off valve is ON.

WARNING: Turn off fireplace and let cool before servicing. Only a qualified service person should service and repair fireplace.

Note: All troubleshooting items are listed in order of operation.

CAUTION: Never use a wire, needle, or similar object to clean pilot. This can damage pilot unit.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Pilot will not light

1.

No gas supply, or shut-off valve is OFF

1.

Check to see if you have gas supply

 

2.

Air in gas line

2.

Hold control valve in the PILOT position

 

 

 

 

for 2 to 3 minutes to purge air. If you smell

 

 

 

 

gas stop and wait for a few minutes before

 

 

 

 

trying to light the fireplace

 

3.

Construction debris clogging pilot orifice

3.

Remove debris and dirt, inspect and

 

 

 

 

clean any other possible obstructions

 

4.

Low gas pressure

4.

Contact your gas supplier

 

5.

Control valve knob is not on the PILOT

5.

Refer to section on pilot lighting

 

 

position

 

 

 

6.

Kinked pilot line

6.

Have a qualified technician replace pi-

 

 

 

 

lot line

 

7.

Bad valve

7.

Replace control valve (see Replacement

 

 

 

 

Parts, page 23)

 

8.

Bad thermocouple or loose connection

8.

Tighten thermocouple or replace

 

 

 

 

 

No gas to burner, although wall switch and

1.

Wall switch wires defective

1.

Check electrical connections

valve are set to the ON position

 

 

 

 

 

 

 

 

 

Frequent pilot outage

1. Pilot flame may be too low, causing

 

safety pilot to “drop out”

1.Clean and adjust pilot flame for maximum flame impingement on thermopile

Burner goes off after a short time

1. Venting recirculation problem

1. Have a qualified technician check vent-

 

 

ing system for leaks or obstructions.

 

 

Have a qualified technician measure the

 

 

pilot’s millivoltage

www.desatech.com

Continued

 

 

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Contents Check Local Codes Prior to Installation What to do if YOU Smell GASVDDVF36PN/PP and VDDVF36STN/STP Series Glossary TermsIntroduction Selecting LocationBefore YOU Begin PRE-INSTALLATION Preparation ClearancesMantel Clearances FramingGeneral Venting Location of Vent TerminationGeneral Venting Venting Installation Installation PrecautionsInstallation Planning Installing Vent System in a ChaseInstallation for Horizontal Termination Snorkel TerminationVent Pipe Connections Horizontal Termination Configurations Horizontal VentingVenting with Two 90 Elbows Installation for Vertical Termination Flat Ceiling InstallationCathedral Ceiling Installation Vertical Termination Configurations Venting with One 90 ElbowVertical Venting Installation Parts Lists for VentingVenting High AltitudeWall Switch Installation Electrical Hookup for Blower AccessoryInstalling Receiver GAS Line HOOK-UP GAS Rating Type of GAS Natural PROPANE/LPGAS Supply Testing Installing LOG SETPilot Assembly Adjustment Burner Flame AdjustmentDecorative Facing Burner RemovalOperating Guidelines and Maintenance Instructions For Your Safety Read Before Lighting Operating FireplaceLighting Instructions To Turn OFF GAS To ApplianceOptional Remote Operation Ghrc OperationService Hints Technical ServiceReplacement Parts Wiring DiagramTroubleshooting Observed Problem Possible Cause RemedyObserved Problem Possible Cause Company Gas leak. See Warning statement Accessories Replacement Parts Refractory Pieces GAS Control ValveNatural 104496-01 14389 Propane/LP 104496-02 Black 105904-01DIRECT-VENT GAS Fireplace 106918 Warranty Information

VDDVF36STN/STP, VDDVF36PN/PP specifications

The Vanguard Heating VDDVF36PN/PP and VDDVF36STN/STP are premium direct vent gas fireplaces that seamlessly blend contemporary design with advanced heating technologies. These models are perfect for homeowners looking to enhance their living spaces while ensuring optimal warmth and comfort.

One of the key features of the VDDVF36 series is its powerful heating capacity. With a maximum input of 36,000 BTUs, these fireplaces can efficiently warm large rooms, making them an excellent choice for both new constructions and renovations. Their direct vent system allows for flexible installation options, as it can draw air from outside and exhaust gases without needing an existing chimney.

The design aesthetic of the VDDVF36PN/PP and VDDVF36STN/STP models is notably sleek and modern. Available in either a pristine perfect black finish or a striking stainless steel option, these units can complement a variety of interior styles. The large viewing area, framed by a stylish bezel, ensures that the flames are the focal point of the room, establishing a cozy ambiance.

Equipped with advanced electronic ignition, these fireplaces offer ease of use and reliability. The ignitor provides a fast and safe startup, eliminating the need for manual lighting and enhancing the user experience. Additionally, these units come with a built-in thermostatic control, allowing users to regulate temperatures effectively, ensuring consistent comfort while optimizing energy use.

The VDDVF36 series is also designed with safety in mind. An integrated safety shut-off system ensures that the fireplace will automatically turn off if any issues are detected, providing peace of mind for users. Furthermore, the screens and barriers are designed to prevent accidental contact with the flames, making them safe for households with children and pets.

In terms of maintenance, the VDDVF36 models are designed for easy access to components, making regular cleaning and servicing straightforward. The durable construction materials used in these fireplaces ensure longevity and reliability, promising years of efficient heating.

Overall, the Vanguard Heating VDDVF36PN/PP and VDDVF36STN/STP models represent the pinnacle of modern gas fireplace technology, combining powerful heating capabilities, stylish aesthetics, and advanced safety features into one outstanding unit. For homeowners seeking a reliable and attractive heating solution, these fireplaces are an excellent choice.