Desa Tech CHDV34NA, CHDV34PA installation manual Troubleshooting, Observed Problem Possible Cause

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CHDV34NA, PA 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 models 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 re- moved

5.Contact local propane/LP gas company

6.Clean pilot (see Cleaning and Mainte- nance, 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 pi- lot 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 SafetyNatural GAS Model CHDV34NA PROPANE/LP GAS Model CHDV34PA Safety Information CHDV34NA, PA DIRECT-VENT Fireplace NATURAL/PROPANE/LPProduct Features Product IdentificationLocal Codes Glossary TermsPRE-INSTALLATION Preparation Location and Space RequirementsClearances Framing and FinishingGeneral 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 Vertical TerminationCathedral Ceiling Installation Vertical Termination Configurations Venting with One 90 ElbowHigh Altitude Installation Parts Lists for Venting Kits and ComponentsComfort Glow Rigid Venting Number DescriptionComfort Glow Flexible Venting Simpson Dura-Vent GS 4 x 6 5/8Number Description Available from Desa International Available from Simpson Dura-Vent OnlyFireplace Installation Installing Optional Blower AccessoryInstalling GA3750/CDA3620T Blowers Check GAS TypeIf your fireplace system is installed Installing 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- ureInstalling Remote Receiver REMOVING/REPLACING Glass DoorInstalling Optional Brick Liner CD8037A Installing Rear Brick Panel and Retainer BracketsInstalling LOGS, Lava Rock and Glowing Embers Installing Log NoFor Your Safety Read Before Lighting Manual Lighting ProcedureOperating Fireplace Lighting InstructionsOptional Remote Operation Thermostat Control OperationCghrc Series Operation Cghrct Series OperationOperating Optional Blower Accessory Pilot AssemblyInspecting Burners Operating Optional GWMT1 Wall Mounted ThermostatCleaning and Maintenance Glass DoorPilot and Burners LogsTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Gas leak. See Warning statement AboveReplacement Parts Service HintsWiring Diagram Technical ServiceIllustrated Parts Breakdown CHDV34NA CHDV34PAParts List DIRECT-VENT Fireplace CHDV34NA CHDV34PAAccessories Cabinet Mantel Hearth BaseGMC11F Series Walnut Finished Hardwood Veneer GMC13F Series Stained Oak VeneerWarranty Information

CHDV34PA, CHDV34NA, CHDV34PA specifications

The Desa Tech CHDV34NA, CHDV34PA, and CHDV34P are advanced heating solutions that combine efficiency, reliability, and modern technology to meet the needs of today's consumers. Each model is designed to provide optimal heating while ensuring safety and ease of use, making them ideal for both residential and commercial applications.

One of the standout features of the CHDV34 series is its impressive heating capacity. With a thermal efficiency that exceeds industry standards, these units can heat up spaces quickly while minimizing energy consumption. This makes them an attractive option for those looking to reduce their energy bills without sacrificing comfort. The versatile design allows for installation in various settings, whether in living rooms, offices, or commercial spaces.

The CHDV34NA model is particularly noteworthy for its natural gas operation, making it an eco-friendly choice. Natural gas provides a clean-burning fuel option that lowers carbon emissions compared to traditional heating methods. This model comes equipped with advanced safety features, including a built-in oxygen depletion sensor, ensuring that the unit operates safely by shutting off if oxygen levels become too low.

In contrast, the CHDV34PA model runs on propane, making it a flexible alternative for those who may not have access to natural gas lines. This model shares many of the same high-efficiency features as its natural gas counterpart, offering an easy transition for users looking to switch fuel sources.

Both models utilize an innovative electronic ignition system, which enhances reliability by eliminating the need for a standing pilot light. This technology not only saves energy but also simplifies the ignition process, allowing users to enjoy a swift heating experience.

Moreover, the CHDV34PA model is compatible with a range of optional accessories, including remote controls and programmable thermostats, allowing for personalized heating management. This level of customization ensures comfort and convenience, as users can easily adjust their settings according to their specific needs.

Overall, the Desa Tech CHDV34NA, CHDV34PA, and CHDV34P models are designed with modern consumers in mind. Their blend of efficiency, eco-friendliness, and advanced features make them stand out in the market, providing reliable heating solutions that cater to a variety of lifestyles and preferences. Whether opting for natural gas or propane, users can trust these models to deliver on performance while maintaining cost-effectiveness and safety.
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