Desa VVDA24M, VVSA24M, VVDA18M, VVDA30M Troubleshooting, Observed Problem Possible Cause Remedy

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TROUBLESHOOTING

11

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 log set and let cool before servicing. Only a qualified service person should service and repair log set.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Log set is smoking/sooting excessively

1.

Poor fuel quality

1.

Contact local natural or propane/LP gas

(Note: It is natural and unavoidable for

 

 

 

company

vented gas log sets to produce moderate

2.

Fireplace venting system not drafting

2.

Adjust damper wide open and/or have

levels of carbon (soot) where flames

 

properly

 

fireplace and venting professionally

contact the logs. This is especially true

 

 

 

cleaned and checked

with propane/LP gas.)

3.

Excessive flame impingement or

3.

Separate the logs to allow more flame

 

 

blockage

 

passage

 

4.

Improper fuel/air mixture

4.

Remove any foreign items from the

 

 

 

 

flame pattern and/or check for proper

 

 

 

 

orifice sizing

 

5.

Excessive gas supply/pressure

5.

Preheat flue in very cold weather

 

 

 

 

 

Burner is excessively noisy

(Note: The movement and combustion of gas will create low, unavoidable levels of noise.)

1.Passage of air/gas across irregular sur- faces

2.Excessive gas pressure on natural gas units

1.Relieve any tight bends or kinks in gas supply line

2.Check/reset gas regulator pressure (see Figure 10, page 7)

Burner flame is too low or too high

1.

Incorrect gas supply or pressure

1.

Check for proper gas supply pressure

 

2.

Blocked burner orifice or burner mani-

2.

Free burner orifice and manifold ports

 

 

fold ports

 

of any burrs, paint, or other blockage

 

3.

Improper burner orifice size

3.

Verify proper burner orifice sizing (see

 

 

 

 

Figure 2, page 4)

 

 

 

 

 

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to igni-

1.

Reconnect ignitor cable

spark at pilot

 

tor cable

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

3.

Bad ground on piezo ignitor

3.

Scrape away paint on bracket for better

 

 

 

 

contact with ground on piezo ignitor

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode broken

6.

Replace electrode

 

7.

Ignitor electrode positioned wrong

7.

Reposition electrode

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

spark at pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

3.

Control knob not pressed in while in

3.

Press in 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 re-

 

 

 

 

moved

 

5.

Pilot adjustment screw closed

5.

Adjust pilot flame for approximately

 

 

 

 

2" blue flame

 

6.

Pilot is clogged

6.

Clean pilot (see Cleaning and Mainte-

 

 

 

 

nance, page 10) or replace pilot assembly

 

7.

Low gas pressure

7.

Replace gas control

For more information, visit www.desatech.com

901268

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Contents What to do if YOU Smell GAS GAS LOG TM Vented Decorative ApplianceSafety Information Table of ContentsProduct Identification Product FeatureON/OFF Safety VALVE/PILOT Local CodesCheck GAS Type InstallationVenting Specifications for Installation Flue Opening SpecificationsConnecting to GAS Supply Installing Damper ClampChecking GAS Connections Hearth PAN InstallationRemoving/Installing Cover, Control Knob, Adding PAN Material Testing Burner for LeaksInstalling the Grate and Logs Curing Logs Lighting Instructions For Your Safety Read Before LightingOperating Appliance To Turn OFF GAS to Appliance Cleaning MaintenancePilot Assembly Inspecting BurnersObserved Problem Possible Cause Remedy TroubleshootingBe caused by one or both of the following Remedy Observed Problem Possible CauseVVSA18M, VVSA24M, VVDA18M VVDA24M and VVDA30M Illustrated Parts BreakdownParts List LOG SET Models VSLR18, VSLR24, VDLCR18 VDLCR24, and VDLCR30 Illustrated Parts Break DownParts List Models FVSA18M FVSA24M, FVDA18M FVDA24M and FVDA30M Parts Available not Shown LOG SET Models FSLR18, FSLR24 FDLCR18, FDLCR24 and FDLCR30 Parts List Models CVDA18M, CVDA24M and CVDA30M KEY Part Number for CVDA18M CVDA24M CVDA30M Description QTY LOG SET Models CVSA18M CVSA24M, CPVSA18M CPVSA24M CVSA18M, CVSA24M, CPVSA18M and CPVSA24M Accessories Replacement Parts901268 Limited Warranty Vented GAS Logs Warranty Information
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VVDA30M, VVDA24M, VVDA18M, VVSA18M, VVSA24M specifications

Desa VVSA24M, VVSA18M, VVDA18M, VVDA24M, and VVDA30M are advanced heating solutions that combine efficiency, versatility, and user-friendly features. These models are popular among consumers looking for reliable heating systems for their homes or businesses.

The Desa VVSA series, which includes the VVSA24M and VVSA18M models, is designed for high-performance utilization, making them ideal for medium to large spaces. These units utilize advanced radiant heating technology, which effectively warms up a room by emitting infrared heat, making them energy-efficient and environmentally friendly. The VVSA24M model offers a higher heat output, catering to larger areas, while the VVSA18M is suitable for smaller spaces, providing ample warmth without the added bulk.

On the other hand, the Desa VVDA series comprises the VVDA18M, VVDA24M, and VVDA30M models. This series is notable for its dual-fuel capability, allowing users to choose between propane and natural gas for fuel, enhancing flexibility depending on availability and cost. The VVDA variances cater to different heating needs, with the VVDA30M boasting the highest output, making it perfect for extensive commercial settings or sizable residential spaces. The VVDA18M and VVDA24M serve as excellent alternatives for smaller establishments, maintaining efficient heating performance while reducing energy consumption.

One of the standout features across all these models is the integrated electronic ignition system, which ensures a reliable start and enhances safety by eliminating the need for a continuous pilot light. Additionally, these units are equipped with advanced thermostat controls, allowing users to set their desired temperature accurately and maintain a consistent level of comfort throughout the space.

These Desa models also feature durable construction with high-quality materials, ensuring longevity and resistance to wear and tear. Their sleek designs mean they can fit seamlessly into various interior decors, making them not just functional but also aesthetically pleasing.

In summary, Desa VVSA24M, VVSA18M, VVDA18M, VVDA24M, and VVDA30M encompass a range of heating solutions that cater to diverse needs and preferences. With their innovative technologies, user-friendly features, and robustness, these units exemplify what modern heating systems should offer. They are not just about warmth; they bring comfort, efficiency, and flexibility to any space.