Desa CDV34NA, CDV34PA installation manual Troubleshooting, Observed Problem Possible Cause

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OWNER’S MANUAL

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 Maintenance, page 26) 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 26) or replace pilot assembly

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

6.Replace thermocouple

7.Replace control valve

www.desatech.com

Continued

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Contents For Your Safety For Your Safety What to do if YOU Smell GASNatural GAS Model CDV34NA PROPANE/LP GAS Model CDV34PA DIRECT-VENT Fireplace NATURAL/PROPANE/LP Safety InformationGlossary Terms Product FeaturesProduct Identification Local CodesFraming and Finishing PRE-INSTALLATION PreparationClearances Location and Space RequirementsLocation of Vent Termination General VentingGeneral Venting Installing Vent System in a Chase Venting InstallationInstallation Precautions Installation PlanningSnorkel Termination Installation for Horizontal TerminationVent Pipe Connections Horizontal Venting Horizontal Termination ConfigurationsVenting with Two 90 Elbows Installation for Vertical Termination Flat Ceiling InstallationCathedral Ceiling Installation Venting with One 90 Elbow Vertical Termination ConfigurationsVertical Venting Comfort Glow Flexible Venting High Altitude InstallationParts Lists for Venting Kits and Components Comfort Glow Rigid VentingCheck GAS Type Fireplace InstallationInstalling Optional Blower Accessory Installing GA3750/CDA3620T BlowersIf your fireplace system is installed Installation Items Needed Installing GAS Piping to Fireplace LocationConnecting Fireplace to GAS Supply Pressure Testing Gas Supply Piping SystemChecking GAS Connections Close manual shutoff valve see Fig- ure Pressure Testing Fireplace Gas ConnectionsInstalling Optional Wireless HAND-HELD Remote Control Installing 9-Volt Alkaline Battery into ReceiverREMOVING/REPLACING Glass Door Attaching Magnetic Decorative Brass Strips Installing Optional Brick Liner CD8037AInstalling Log No Installing LOGS, Lava Rock and Glowing EmbersLighting Instructions For Your Safety Read Before LightingManual Lighting Procedure Operating FireplaceOptional Remote Operation Operating Optional Blower AccessoryPilot Assembly Inspecting BurnersLogs Cleaning and MaintenanceGlass Door Pilot and BurnersObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement Technical Service Replacement PartsService Hints Wiring DiagramAccessories CDV34NA CDV34PA33 Illustrated Parts BreakdownDIRECT-VENT Fireplace CDV34NA CDV34PA Parts ListWarranty Information

CDV34PA, CDV34NA specifications

Desa CDV34NA and CDV34PA are two prominent models in the Desa vent-free gas fireplace series, renowned for their efficiency, craftsmanship, and modern design. These fireplaces offer an ambient warmth while combining style with practicality, making them a popular choice for homeowners looking to enhance their living spaces.

One of the key features of the CDV34NA and CDV34PA is the vent-free technology. This innovative design allows for the direct burning of gas without the necessity of a chimney or venting system. As a result, these fireplaces can be installed in various locations within the home, providing flexibility that traditional fireplaces cannot match. The absence of a flue system also means that no heat is lost during the exhaust process, allowing for maximum energy efficiency.

Both models are equipped with advanced safety features. They include an Oxygen Depletion Sensor (ODS) that automatically shuts off the unit if oxygen levels fall below a safe threshold. This technology not only ensures the safety of users but also enhances peace of mind while operating the fireplace. Additionally, the CDV34 series features a built-in thermocouple that regulates the temperature, providing an added layer of safety by preventing overheating.

When it comes to aesthetics, the CDV34NA and CDV34PA do not disappoint. They feature a modern, sleek design that complements a variety of interior decors. Available in stylish finishes, these units can seamlessly blend into contemporary homes or traditional settings. The large viewing windows provide a captivating view of the flames, creating an inviting ambiance ideal for any gathering.

Performance-wise, both models deliver impressive heating capabilities. With adjustable heat output settings, users can customize the warmth to suit their preferences. The units operate quietly, enhancing the overall comfort of the environment without disruptive fan noise. Additionally, the CDV34NA model runs on natural gas, while the CDV34PA uses propane, providing options based on the homeowner's available gas supply.

In conclusion, the Desa CDV34NA and CDV34PA are exceptional options for those seeking a versatile and stylish heating solution. With their vent-free technology, enhanced safety features, and elegant design, these fireplaces are perfect for adding warmth and character to any indoor space. Whether for new constructions or renovations, these models offer the right blend of function and form for today's discerning homeowners.