Desa VGL450P, VGL450N installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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® VGL450 Series

VENTED TYPE DECORATIVE APPLIANCE

TROUBLESHOOTING

Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.

Note: Before troubleshooting the system, make sure the gas shut-off valve is ON.

The two most common causes of a malfunctioning gas appliance are:

1.Loose wiring connections

2.Construction debris clogging the pilot and/or gas control valve filter

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Cannot light pilot

1.

No gas supply, or shut-off valve is OFF

1.

Check to see if you have gas supply

 

2.

Air in gas line

2.

Hold regulator control valve in the PILOT

 

 

 

 

position for 3 to 4 minutes to purge air

 

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

 

5.

Control valve knob is not on the PILOT

5.

Refer to section on pilot lighting

 

 

position

 

 

 

6.

Kinked pilot line

6.

Have a qualified technician replace pi-

 

 

 

 

lot line

 

7.

Bad valve

7.

Replace regulator valve (see Accessories

 

 

 

 

& Replacement Parts, page 14)

 

 

 

 

 

Pilot will not stay lit

1.

Loose wiring on thermopile to regula-

1.

Check wiring connections. Refer to wir-

 

 

tor valve. No millivolt current is being

 

ing diagram shown in Wall Switch In-

 

 

sent back to regulator

 

stallation, page 6

 

2.

If valve knob and wall switch are in the

2.

Have a qualified technician replace valve

 

 

ON position, probable defective regula-

 

 

 

 

tor valve

 

 

 

 

 

 

 

No gas to burner, although wall switch and

1.

Wall switch wires defective or too long

1.

Check electrical connections

valve are set to the ON position

2.

Pilot not generating sufficient

2.

See Pilot will not stay lit, above

 

 

millivoltage

 

 

Frequent pilot outage

1. Pilot flame may be too low, causing

 

safety pilot to “drop out”

1.Clean and adjust pilot flame for maximum flame impingement on pilot generator

Pilot goes out when wall switch is ON

1. Millivolt output on thermopile too high

1. Replace thermopile

www.desatech.com

12

105704

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Contents For Your Safety VGL450N Natural and VGL450P PROPANE/LPWhat to do if YOU Smell GAS Vented Type Decorative Appliance Introduction Selecting LocationBefore YOU Begin PRE-INSTALLATION Preparation ClearancesMantel Clearances FramingVenting Installation Attaching Fireplace to Wall StudsInstallation Wall Switch InstallationWiring Diagram Installing ReceiverGAS Supply Testing Installing 9-Volt Battery in Hand- Held Remote Control UnitGAS Ratings GAS Line HOOK-UP Is OFFFor Your Safety Read Before Lighting Operating FireplaceLighting Instructions Pilot Assembly Adjustment Burner Flame AdjustmentOperating Guidelines and Maintenance Instructions To Turn OFF GAS To ApplianceWiring Diagram Service Hints Technical ServiceReplacement Parts Parts Under WarrantyTroubleshooting Observed Problem Possible Cause RemedyGas leak. See Warning statement at Accessories and Replacement Parts Pilot AssemblyBI-FOLD Glass Doors Type Vent Pipe105704 Warranty Information Limited Warranty Vent Fireplace

VGL450P, VGL450N specifications

Desa VGL450N and VGL450P are two advanced heating solutions designed to provide efficient and effective warmth for various residential and commercial settings. Both models are engineered with modern technology to ensure optimal performance and user convenience.

The VGL450N is a natural gas heater that harnesses the power of natural gas to deliver a steady and reliable heat source. On the other hand, the VGL450P operates on propane, offering flexibility for users who prefer or require propane as their heating fuel. Both units boast a sleek design that fits seamlessly into any environment, making them suitable for installation in living rooms, garages, workshops, and more.

One of the standout features of the VGL450 series is its high efficiency. With an impressive efficiency rating, these heaters effectively convert fuel into heat, minimizing waste and reducing energy costs. This aspect not only benefits users financially but also plays a role in promoting environmental sustainability. Integrated safety features are also a hallmark of the VGL450 models, ensuring peace of mind through mechanisms like automatic shut-off and flame monitoring systems.

In terms of operation, the heaters are designed for simplicity. Both models come equipped with easy-to-use controls, allowing for quick adjustments to temperature settings. Users can enjoy personalized comfort with the capabilities of adjusting the heat output efficiently based on their specific needs. Additionally, these heaters operate quietly, ensuring an unobtrusive experience, allowing users to enjoy warmth without disruptive noise.

The VGL450 series also emphasizes durability and reliability. Constructed with high-quality materials, the heaters are built to withstand the rigors of daily use while providing consistent performance throughout their lifespan. Their user-friendly design facilitates easy maintenance, with accessible components that allow for straightforward cleaning and servicing.

In conclusion, the Desa VGL450N and VGL450P are exceptional heating solutions that combine efficiency, safety, and ease of use. By integrating advanced technologies and sustainable practices, these heaters stand out in today’s market, making them an excellent investment for anyone seeking a reliable heating source for their space. Whether relying on natural gas or propane, users can trust in the VGL450 series for warmth and comfort.