Vanguard Managed Solutions MBDV37, MBDV41 Gas leak. See Warning statement, Above

Page 34

®

DIRECT-VENT FIREPLACE

TROUBLESHOOTING

Continued

WARNING: If you smell gas

Shut off gas supply.

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

IMPORTANT: Operating fireplace where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors. These odors will disappear over time.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Fireplace produces unwanted odors

1. Gas leak. See Warning statement

 

above

1.Locate and correct all leaks (see Check- ing Gas Connections, pages 19 and 20)

Fireplace shuts off in use

1.

High or gusting winds

1.

Fireplace has been tested for up to

 

 

 

 

40mph winds. However, extreme con-

 

 

 

 

ditions may occur. See Lighting Instruc-

 

 

 

 

tions on page 26 and 27.

 

2.

Low line pressure

2.

Contact local propane/LP or natural gas

 

 

 

 

company

 

3.

Pilot is partially clogged

3.

Clean pilot (see Cleaning and Mainte-

 

 

 

 

nance, page 28)

 

4.

Inner vent pipe leaking exhaust gases

4.

Locate and correct all leaks (see Check-

 

 

into system

 

ing Gas Connections, pages 20 and 21)

 

5.

Horizontal vent improperly pitched

5.

Horizontal vent termination should slope

 

 

 

 

down only enough to prevent any water

 

 

 

 

from entering the unit. The maximum

 

 

 

 

downward slope of the vent termination

 

 

 

 

is 1/4" for any horizontal run

 

6.

Glass too loose and air tight gasket leaks

6.

Tighten glass

 

 

in corners after usage

 

 

 

 

7.

Bad thermopile or thermocouple

7.

Replace faulty component

 

8.

Improper vent cap installation

8.

Check for proper installation and free-

 

 

 

 

dom from debris or blockage

 

 

 

 

 

Gas odor even when control knob is in OFF

1.

Gas leak. See Warning statement

1.

Locate and correct all leaks (see Check-

position

 

above

 

ing Gas Connections, pages 20 and 21)

 

2.

Control valve defective

2.

Replace control valve

 

 

 

 

 

 

Gas odor during combustion

1. Gas leak. See Warning statement

 

above

1.Locate and correct all leaks (see Check- ing Gas Connections, pages 20 and 21)

Dark residue on logs or inside of fireplace

1.

Improper log placement

1.

Properly locate logs (see Installing Logs,

 

 

 

 

Lava Rock, and Glowing Embers, page 24)

 

2.

Air holes at burner inlet blocked

2.

Clean out air holes at burner inlets. Pe-

 

 

 

 

riodically repeat as needed

 

3.

Burner flame holes blocked

3.

Remove blockage or replace burner

www.desatech.com

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106497

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Contents Check Local Codes Prior to Installation OWNER’S Operation and Installation ManualFor Your Safety MBDV37 and MBDV41Safety Information Glossary Terms Product FeaturesLocal Codes Product IdentificationLocation and Space Requirements PRE-INSTALLATION PreparationClearances Framing and FinishingPRE-INSTALLATION Preparation General Venting Location of Vent TerminationGeneral Venting Installation Precautions Venting InstallationInstallation Planning Installation for Horizontal Termination Installing Vent System in a ChaseVent Opening Requirements Horizontal Termination Configurations Horizontal VentingVenting with Two 90 Elbows Cathedral Ceiling Installation Installation for Vertical TerminationFlat Ceiling Installation Connect a section of pipe and extend up through the holeVertical Termination Configurations Venting with One 90 ElbowVertical Rigid Venting Configuration Using Two 90 Elbows Vertical VentingVanguard Rigid Venting High Altitude InstallationParts Lists for Venting Kits and Components Vanguard Flexible VentingCheck GAS Type Fireplace InstallationElectrical Hookup for Blower Accessory Number Description Available from Desa InternationalSome Models Have Blower Assembly Preinstalled Blower Assembly and OperationInstalling GA3700 Blower Open lower louver panel or remove for easier accessWireless HAND-HELD Remote Control Ghrc Series Installation Wall Switch InstallationInstalling Receiver Installing GAS Piping to Fireplace Location Installation Items NeededInstallation Items Needed Connecting Fireplace to GAS SupplyGAS Supply Testing Pressure Testing Gas Supply Piping SystemPressure Testing Fireplace Gas Connections Close equipment shutoff valve see Fig- ureREMOVING/REPLACING Glass Door Removing/Replacing Glass DoorTighten all bracket screws Installing Optional Brick Liner D8037A/D8041Replace glass door see Installing LOGS, Lava Rock and Glowing Embers Fireplace Models MBDV37 and MBDV41Operating Guidelines and Maintenance Instructions Operating Fireplace To Appliance For Your Safety Read Before LightingManual Lighting Procedure Lighting To Turn OFF GASRemote Operation Pilot AssemblyInspecting Burners Operating BlowerPilot and Burners Cleaning and MaintenanceGlass Door LogsBefore YOU Begin Main Burner Orifice and Pilot OrificeGAS Control Valve Conversion Final PreparationTroubleshooting Observed Problem Possible CausePilot’s millivoltage Trying to light the fireplaceParts, OrificePane/LP or natural gas company Delayed ignition burner Manifold pressure is too lowBurner is lit Glass soots Flame impingement on logsGas leak. See Warning statement AboveService Hints Replacement Parts Wiring DiagramTechnical Service SpecificationsIllustrated Parts Breakdown MBDV37 MBDV41Parts List DIRECT-VENT Fireplace MBDV37 MBDV41Cleaning KIT GCK AccessoriesWall Mount ON/OFF Switch KIT GWMS2 Brass Louver KIT106497 Warranty Information