Desa DDV41N/P, BDV41N/P, BDV37N/P, DDV37N/P, B) Troubleshooting, Observed Problem Possible Cause

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DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

TROUBLESHOOTING

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

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

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

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

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no spark at pilot

1.Ignitor electrode not connected to igni- tor cable

2.Ignitor cable pinched or wet

3.Piezo ignitor nut is loose

4.Broken ignitor cable

5.Bad piezo ignitor

6.Ignitor electrode broken

7.Ignitor electrode positioned wrong

1.Reconnect ignitor cable

2.Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry

3.Tighten nut holding piezo ignitor. Nut is located behind the mounting bracket

4.Replace ignitor cable

5.Replace piezo ignitor

6.Replace pilot assembly

7.Replace pilot assembly

When ignitor button is pressed, there is spark at pilot but no ignition

1.Gas supply turned off or manual shutoff valve closed

2.Gas control knob not in PILOT position

3.Gas control knob not pressed in while in PILOT position

4.Air in gas lines when installed

5.Depleted gas supply (propane/LP mod- els only)

6.Pilot is clogged

7.Gas regulator setting is not correct

1.Turn on gas supply or open manual shutoff valve

2.Turn gas control knob to PILOT position

3.Press in gas control knob while in PILOT position

4.Continue holding down control knob. Repeat igniting operation until air is removed

5.Contact local propane/LP gas company

6.Clean pilot (see Cleaning and Maintenance, page 27) or replace pilot assembly

7.Replace gas control

Pilot lights but flame goes out when control knob is released

1.Gas control knob not fully pressed in

2.Gas control knob not pressed in long enough

3.Manual shutoff valve not fully open

4.Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out. This prob- lem could be caused by one or both of the following:

A)Low gas pressure

B)Dirty or partially clogged pilot

5.Thermocouple connection loose at con- trol valve

6.Thermocouple damaged

7.Control valve damaged

1.Press in gas control knob fully

2.After pilot lights, keep gas control knob pressed in 30 seconds

3.Fully open manual shutoff valve

4.A) Contact local gas company

B)Clean pilot (see Cleaning and Maintenance, page 27) or replace pilot assembly

5.Hand tighten until snug, then tighten 1/4 turn more

6.Replace thermocouple

7.Replace control valve

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Contents For Your Safety What to do if YOU Smell GAS For Your SafetyBDV41N/PA,B, and DDV41N/PA,B Safety Information DIRECT-VENT Fireplace NATURAL/PROPANE/LPProduct Features Product IdentificationLocal Codes Glossary TermsPRE-INSTALLATION Preparation ClearancesLocation and Space Requirements Framing and FinishingPRE-INSTALLATION Preparation General 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 Flat Ceiling Installation Installation for VERTI- CAL TerminationCathedral Ceiling Installation Vertical Termination Configurations Venting with One 90 ElbowVertical Rigid Venting Configuration Using Two 90 Elbows Vertical VentingHigh Altitude Installation Parts Lists for Venting Kits and ComponentsVanguard Rigid Venting Vanguard Flexible VentingFireplace Installation Installing Optional Blower AccessoryInstalling GA3700/DA3610T Blowers Check GAS TypeAs a freestanding unit with an ac Side ViewInstalling GAS Piping to Fireplace Location Installation Items NeededConnecting Fireplace to GAS Supply Installation Items NeededPressure Testing Gas Supply Piping System Checking GAS ConnectionsPressure Testing Fireplace Gas Connections Close manual shutoff valve see Fig- ureREMOVING/REPLACING Glass Door Attaching Magnetic Decorative Brass Strips DDV OnlyInstalling Optional Brick Liner D8037A/D8041 Installing Left Side Brick PanelInstalling LOGS, Lava Rock and Glowing Embers Fireplace Models BDV37N/PA, BInstalling Log Assembly No Fireplace Models DDV37N/PA, B DDV41N/PA, BFor Your Safety Read Before Lighting Manual Lighting ProcedureOperating Fireplace Lighting InstructionsOperating Optional Blower Accessory Pilot AssemblyInspecting Burners Optional Remote OperationCleaning and Maintenance Glass DoorPilot and Burners LogsTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Gas leak. See Warning statement AboveReplacement Parts Wiring DiagramTechnical Service Service HintsSpecifications BDV/DDV37NA,B BDV/DDV37PA,B BDV/DDV41NA,B BDV/DDV41PA,BAccessories Manual Blower KIT GA3700Cabinet Mantel with Square LEG Styling Brass Louver KIT Brick LinerIllustrated Parts Breakdown BDV37NA,B BDV41NA,BParts List DIRECT-VENT Fireplace BDV37NA,B BDV41NA,BBDV37PA,B BDV41PA,B DIRECT-VENT Fireplace BDV37PA,B BDV41PA,B DDV37NA,B DDV41NA,B DIRECT-VENT Fireplace DDV37NA,B DDV41NA,B DDV37PA,B DIRECT-VENT Fireplace DDV37PA,B DDV41PA,B Warranty Information

DDV41N/P, BDV37N/P, BDV41N/P, B), DDV37N/P specifications

Desa B), DDV41N/P, DDV37N/P, BDV37N/P, and BDV41N/P represent a family of advanced heating, ventilation, and air conditioning (HVAC) systems. These models are designed to provide efficient climate control in both residential and commercial environments. They incorporate state-of-the-art technology and superior engineering, offering an optimal combination of performance, energy efficiency, and user comfort.

One of the main features of these units is their enhanced energy efficiency. Each model is built with high-efficiency compressors and advanced heat exchange technology that significantly reduces energy consumption compared to traditional HVAC systems. This not only lowers utility bills but also minimizes the environmental impact by reducing greenhouse gas emissions.

The DDV and BDV series are equipped with cutting-edge inverter technology. This allows the units to adjust their cooling and heating output in response to changing indoor conditions. Consequently, they maintain a consistent temperature while consuming less energy. This inverter-driven operation translates into quieter performance and longer lifespan for the systems, as they experience less wear and tear.

The Desa B) series, along with the DDV41N/P and DDV37N/P, features advanced filtration systems that improve indoor air quality. These filters effectively capture dust, allergens, and other airborne pollutants, making them ideal for households with allergy sufferers or for commercial spaces requiring a clean environment. Furthermore, the user-friendly interfaces and remote control options make operation convenient for users, allowing for easy temperature adjustments and system monitoring.

The BDV37N/P and BDV41N/P models stand out with their versatile installation options. They can be configured for ducted, ductless, or multi-zone systems, making them adaptable to various architectural layouts and design preferences. This flexibility ensures that they can provide the perfect solution for any space, whether it's a compact apartment or a sprawling office building.

Additionally, these models are designed with durability in mind, utilizing high-quality materials that withstand various environmental conditions. They come with robust warranties, ensuring peace of mind for users. With their combination of energy efficiency, advanced technology, and user-friendly features, the Desa B), DDV41N/P, DDV37N/P, BDV37N/P, and BDV41N/P HVAC systems are an excellent choice for anyone seeking optimal climate control solutions. Whether for residential or commercial use, these units deliver comfort and reliability, marking a significant advancement in HVAC technology.