Desa (V)VC42PE, (V)VC42NE Troubleshooting, Observed Problem Possible Cause Remedy

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26

TROUBLESHOOTING

TROUBLESHOOTING

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

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

 

 

 

 

 

Ignitor will not spark or pilot will not light

1.

No gas supply or shutoff valve is OFF

1.

Check to see if you have gas supply and

 

 

 

 

that equipment shutoff valve is opened

 

2.

Air in gas line

2.

Repeat lighting procedure several times

 

 

 

 

to purge all air out of lines. If after re-

 

 

 

 

peated attempts appliance does not light,

 

 

 

 

call for qualified service and repair.

 

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 to check

 

 

 

 

pressure

 

5.

Kinked pilot line

5.

Have a qualified technician replace pilot

 

 

 

 

line

 

6.

Control valve is not opening

6.

Replace control valve (Refer to Replace-

 

 

 

 

ment Parts, page 28)

 

7.

No power to unit or the ignition module

7.

Check that main power is on and that all

 

 

or power transformer is bad

 

wire connections are made correctly to

 

 

 

 

the ignition model (see Wiring Diagram,

 

 

 

 

page 23). Check for 24 VAC at the

 

 

 

 

secondary side of the transformer. If 24

 

 

 

 

VAC is present and the module does not

operate, have the module replaced oth- erwise have the transformer replaced

Pilot will not stay lit

1.

Loose wiring on ignitor wire to ignition

 

 

module and/or poor ground to ignition

 

 

module

 

2.

Pilot flame too low to sense

1.Check wiring connection. Refer to wir- ing diagram (see Wiring Diagram, page 23) and/or check ground wire to ignition module

2.Clean and adjust pilot burner and check

gas supply and inlet pressure to unit

Note: Have a qualified technician replace pilot assembly if broken or corroded

No gas to burner, although wall switch and

1.

Wall switch wires defective or too

1.

Check electrical connections

valve are set to the ON position

 

long

 

 

 

 

 

 

 

Frequent pilot outage

1.

Pilot flame may be too low, causing

1.

Clean and adjust pilot flame for maximum

 

 

safety pilot to “drop out”

 

flame impingement on thermopile

 

2.

Improper venting or excessive blockage

2.

Have the vent system inspected, includ-

 

 

 

 

ing the termination cap. Remove any

 

 

 

 

restriction or obstruction

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116237-01A

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Contents For Your Safety For Your Safety What to do if YOU Smell GASTable of Contents Safety InformationSafety Information Product Identification Local CodesLocation and Space Requirements Product FeaturesPRE-INSTALLATION Preparation Clearances Framing and FinishingLocation of Termination CAP Termination CAP AIR Supply Inlet GAS MeterVenting Installation Instructions Installation PrecautionsInstallation Planning Horizontal Termination InstallationInstalling Horizontal Vent Cap Noncombustible Exterior Venting Installation Instructions Horizontal Termination ConfigurationsCorner Installation Venting with Two 90 Elbows Installation for Vertical Termination Flat Ceiling InstallationVertical Termination Configurations Vertical V Horizontal H Min Max 12 max 18 max 20 maxHigh Altitude Installation Installing Optional Blower Accessory Venting InstallationFireplace Installation Check GAS Type Desa 5/8 Pipe & Vent KitsFireplace Installation Model BKT InstallationInstallation Items Needed Installing GAS Piping to Fireplace LocationBlower Wiring Diagram Checking GAS Connections Connecting Fireplace to GAS SupplyPressure Testing Gas Supply Piping System Removing Louver Panels Pressure Testing Fireplace Gas ConnectionsREMOVING/REPLACING Glass Door Removing Glass Door Installing Lava Rock and Glowing EmbersCleaning Glass Door Optional Remote Control Installation Model WRC Installing Brick Liner Models BL42DASA and BL42DHASAWall Switch Installation Lighting Instructions Wiring DiagramOperating Fireplace Optional Remote Operating Optional Blower AccessoryTo Turn OFF GAS To Appliance OperationPilot and Burners Cleaning MaintenanceGlass Door LogsTroubleshooting Observed Problem Possible Cause RemedyGas leak. See Warning statement at Technical Service Replacement PartsService Hints Parts Under WarrantySpecifications Illustrated Parts Breakdown Models VC42NE, VC42PE, VVC42NE and VVC42PEParts List KEY Part Number Description QTY19 18 116237-01A KEY Part Number Description Accessories Owners Registration Form Postage Required 116237-01A Warranty Information Keep this Warranty

(V)VC42PE, (V)VC42NE specifications

Desa (V)VC42NE and (V)VC42PE are innovative heating solutions that cater to modern residential and commercial spaces. These advanced units embody a combination of efficiency, sustainability, and user-friendly features, making them highly sought after in the market.

The (V)VC42NE model stands out for its high energy efficiency, designed to provide optimal heating performance while minimizing energy consumption. This unit incorporates state-of-the-art condensing technology, which allows it to extract additional heat from exhaust gases, enhancing its overall energy efficiency. With a commendable seasonal efficiency rating, it is suitable for environments where reduced carbon footprints are a priority.

On the other hand, the (V)VC42PE model is engineered to offer unparalleled versatility. It supports a range of fuel options, including natural gas and propane, making it adaptable to various installations. This flexibility is particularly beneficial for users who may want to switch fuel sources in the future. The (V)VC42PE also includes a powerful fan system, which ensures even heat distribution throughout the space, eliminating cold spots.

Both models are equipped with advanced safety features that comply with stringent industry standards. These include flame failure devices, pressure relief valves, and overheat protection systems that ensure the units operate safely under all conditions. Additionally, they are designed for low maintenance, with accessible components that simplify servicing and repairs.

One of the standout characteristics of both Desa models is their intuitive control systems. The units feature digital thermostats that allow users to set and monitor temperatures effortlessly. Moreover, they offer programmable settings that enable users to optimize heating schedules according to their lifestyle needs. This feature contributes to enhanced comfort while further promoting energy savings.

In terms of design, both the (V)VC42NE and (V)VC42PE models possess a sleek, modern aesthetic that integrates seamlessly into various interior styles. Their compact size allows for easy installation in tight spaces, making them an ideal choice for apartments, offices, and other limited areas.

In summary, Desa (V)VC42NE and (V)VC42PE units are exemplary heating systems that combine efficiency, safety, and user-friendly features, making them suitable for a wide range of applications. With their advanced technologies and commitment to sustainability, these models are poised to meet the demands of today's energy-conscious consumers.
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