Desa (V)VC42P SERIES, (V)VC42N SERIES Troubleshooting, Observed Problem Possible Cause Remedy

Page 28

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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

 

 

 

 

 

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to ignitor

1.

Reconnect ignitor cable

spark at pilot

 

cable

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor. Nut is

 

 

 

 

located behind the mounting bracket

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode broken

6.

Replace pilot assembly

 

7.

Ignitor electrode positioned wrong

7.

Tighten electrode. Replace if necessary

 

 

 

 

 

When ignitor button is pressed, there is spark

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

at pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

2.

Gas control knob not in PILOT position

2.

Turn gas control knob to PILOT position

 

3.

Gas control knob not pressed in while in

3.

Press in gas control knob while in PILOT

 

 

PILOT position

 

position

 

4.

Air in gas lines when installed

4.

Continue holding down control knob.

 

 

 

 

Repeat igniting operation until air is

 

 

 

 

removed

 

5. Depleted gas supply (propane/LP models

5. Contact local propane/LP gas company

 

 

only)

6.

Cleanpilot(seeCleaning and Maintenance,

 

6.

Pilot is clogged

 

 

 

 

page 27) or replace pilot assembly

 

7.

Gas regulator setting is not correct

7.

Replace gas regulator

 

 

 

 

 

Pilot lights but flame goes out when control

1.

Gas control knob not fully pressed in

1.

Press in gas control knob fully

knob is released

2.

Gas control knob not pressed in long

2.

After pilot lights, keep gas control knob

 

 

enough

 

pressed in 30 seconds

 

3.

Equipment shutoff valve not fully

3.

Fully open equipment shutoff valve

 

 

open

 

 

 

4.

Pilot flame not touching thermocouple,

4.

A) Contact local natural or propane/LP

 

 

which allows thermocouple to cool,

 

gas company

 

 

causing pilot flame to go out. This prob-

 

B) Clean pilot (see Cleaning and

 

 

lem could be caused by one or both of

 

Maintenance, page 27) or replace pilot

 

 

the following:

 

assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged pilot

 

 

 

5.

Thermocouple connection loose at con-

5.

Hand tighten until snug, then tighten

 

 

trol valve

 

1/4 turn more

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

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116236-01B

Image 28
Contents For Your Safety What to do if YOU Smell GAS For Your SafetySave this manual for future reference Table of Contents Safety InformationProduct Identification Local CodesPRE-INSTALLATION Preparation Product FeaturesLocation and Space Requirements Clearances Framing and FinishingLocation of Termination CAP Termination CAP AIR Supply Inlet GAS MeterVenting Installation Instructions Installation PrecautionsInstallation Planning Horizontal Termination InstallationInstalling Siding Standoff Combustible Horizontal Termination Configurations Vertical Horizontal HCorner Installation Horizontal System Installation Using TWO Elbows Venting with Two 90 ElbowsInstallation for Vertical Termination Flat Ceiling InstallationVertical Termination Configurations Venting with One 90 ElbowHigh Altitude Installation Vertical VentingVenting Installation Fireplace InstallationInstalling Optional Blower Accessories Check GAS TypeModel BKT Installation Blower see FigureBlower Wiring Diagram Installing GAS Piping to Fireplace LocationInstallation Items Needed Checking GAS Connections Connecting Fireplace to GAS SupplyOr servicing. Correct all leaks at once Installing Optional Wall Mount Switch GWMS2 Pressure Testing Fireplace Gas ConnectionsREMOVING/REPLACING Glass Door Installing Remote ReceiverRemoving Louver Panels Cleaning Glass Door Installing Lava Rock and Glowing EmbersRemoving Glass Doors Installing Brick Liner Models BL42DASA and BL42 Dhasa For Your Safety Read Before LightingOperating Fireplace Lighting InstructionsManual Lighting Procedure To Turn OFF GASTo Appliance Optional HAND-HELD Remote OperationSafety Features Manual ModeAuto Thermostatic Mode ON/OFF Series Model GhrcbOperating Optional Blower Accessory Pilot AssemblyInspecting Burners Operating Optional GWMT1 Wall Mounted ThermostatCleaning and Maintenance Glass DoorPilot and Burners LogsTroubleshooting Observed Problem Possible Cause RemedyBrick Liner Models BL42DASA Gas leak. See Warning statement AboveReplacement Parts Service HintsTechnical Service SpecificationsIllustrated Parts Breakdown Models VC42N, VC42P, VVC42N and VVC42P SeriesParts List KEY Part Number Description QTY19 18 Parts List Accessories Owners Registration Form Postage Required 116236-01B Warranty Information

(V)VC42P SERIES, (V)VC42N SERIES specifications

The Desa (V)VC42P and (V)VC42N Series are advanced solutions in the HVAC and thermal control industry, designed to provide efficient climate management for various applications. These series are noted for their commitment to performance, reliability, and energy efficiency, making them popular choices among users looking for modern heating and ventilation systems.

One of the main features of the (V)VC42P and (V)VC42N Series is their state-of-the-art variable speed technology. This technology allows the units to adjust their output based on the specific heating or cooling needs of a space. By operating at different speeds, the systems can maintain a more consistent temperature while using less energy compared to traditional fixed-speed systems. This leads to significant cost savings and enhanced comfort for occupants.

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In summary, the Desa (V)VC42P and (V)VC42N Series stand out in the HVAC market due to their variable speed technology, smart home compatibility, durable construction, and low noise operation. With their innovative features and characteristics, these systems are well-equipped to provide effective and efficient climate control solutions tailored to modern living and working environments.