Desa CFS18NRA, VS24NRA, VS18NRA, VS30NRA installation manual See Wiring Diagram

Page 20

DESA INTERNATIONAL

UNVENTED NATURAL GAS LOG HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

One or both burners do not light after ODS/

1.

Inlet gas pressure is too low

1.

Contact local natural gas company

pilot is lit

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

4.

Burner orifice(s) diameter is too small

4.

Replace burner orifice(s)

 

5.

Remote selector in OFF position

5.

Put remote selector in ON position

 

6.

Wire disconnected from gas control

6.

See Wiring Diagram, page 24

 

 

 

 

 

Delayed ignition of one or both burners

1.

Manifold pressure is too low

1.

Contact local natural gas company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 18) or replace burner orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas control defective

3.

Replace gas control

 

 

 

 

 

Yellow flame in front burner during burner

1.

Not enough air

1.

Check burner(s) for dirt and debris. If

combustion

 

 

 

found, clean burner(s) (see Cleaning and

 

 

 

 

Maintenance, page 18)

 

2.

Gas control defective

2.

Replace gas control

Slight smoke or odor during initial operation 1. Residues from manufacturing processes and logs curing

1.Problem will stop after a few hours of operation

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

lation requirements (page 4)

 

 

 

 

 

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

burners are lit

 

when burners are cold

 

let warm up for a minute

 

2.

Air in gas line

2.

Operate burners until air is removed

 

 

 

 

from line. Have gas line checked by lo-

 

 

 

 

cal natural gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see pages 7 through 9)

 

4.

Dirty or partially clogged burner

4.

Clean burners (see Cleaning and Main-

 

 

orifice(s)

 

tenance, page 18) or replace burner

 

 

 

 

orifice(s)

 

 

 

 

 

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. turn into white powder residue

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

Remote does not function

1. Battery is not install. Battery power is

 

low

1.Replace 9-volt batteries in receiver and remote control

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Contents Desa International What to do if YOU Smell GASSafety Information Desa International Unvented Natural GAS LOG HeaterProduct Identification Features Optional Remote Control AccessoriesLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Installation ClearancesCheck GAS Type Vent-Free Operation OnlyIf Using Mantel Minimum Noncombustible Material ClearancesMantel Clearances Floor ClearancesInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Area of Various Standard Round FluesConnecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorChecking GAS Connections Pressure Testing Heater Gas ConnectionsPressure Testing gas Supply Piping system Installing Logs Lighting Instructions For Your Safety Read Before LightingOperating Heater Manual Lighting Procedure To Turn OFF GAS To ApplianceShutting Off Heater Shutting Off Burners Only pilot stays litOptional Remote Operation Thermostat Control OperationGhrc Operation Ghrct OperationFront Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Cleaning and Maintenance Replacement PartsTroubleshooting Observed Problem Possible Cause RemedySee Wiring Diagram, Gas leak. See Warning statement Illustrated Parts BREAKDOWN4 Variable Control CFS18NRA, VS18NRA VS24NRA, VS30NRAParts List VS24NRA VS30NRA Description QTYSpecifications Technical ServiceWiring Diagram Service HintsAccessories Warranty Information International

VS30NRA, VS18NRA, VS24NRA, CFS18NRA specifications

Desa, a well-known manufacturer in the heating and light industry, has developed several innovative products: the VS24NRA, VS30NRA, CFS18NRA, and VS18NRA. Each of these models showcases unique features, advanced technologies, and characteristics designed to cater to diverse consumer needs.

Starting with the VS24NRA, this unit is celebrated for its efficient heating capabilities. It boasts a powerful design, ideal for medium-sized spaces. Featuring an advanced combustion system, it ensures optimal fuel usage, translating to lower running costs and reduced environmental impact. The VS24NRA is equipped with an adjustable thermostat, allowing users to maintain desired temperatures easily. Its sleek and modern design allows it to fit seamlessly into various interior environments.

Next, the VS30NRA takes heating efficiency a step further. With a higher BTU output, it is suitable for larger spaces requiring more substantial heating solutions. This model incorporates cutting-edge heat distribution technology, ensuring even warmth throughout the room. Additionally, the VS30NRA is built with premium materials that enhance its durability, making it a long-term investment for homeowners. Its electronic ignition system contributes to convenience, allowing for quick and hassle-free startups.

The CFS18NRA stands out with its dual functionality by combining both heating and cooking capabilities. This model is ideal for those looking to maximize utility in smaller spaces. It features a contemporary design and compact build, making it an excellent addition to cabins, tiny homes, or other limited areas. The CFS18NRA utilizes infrared heating technology, which warms objects directly rather than relying solely on heating the air, creating a cozy atmosphere with minimal energy consumption.

Finally, the VS18NRA offers a balance between size and efficiency. It is tailored for modest environments, providing consistent warmth without overwhelming the space. The VS18NRA comes equipped with a user-friendly control panel, giving users precise control over settings. Its portability makes it a versatile choice for different rooms in a home or for outdoor gatherings.

In summary, Desa’s range, including the VS24NRA, VS30NRA, CFS18NRA, and VS18NRA, caters to a variety of heating needs. Their use of innovative technologies and emphasis on efficiency showcases Desa’s commitment to quality and customer satisfaction. Each model presents distinct features that make them suitable for a range of applications, ensuring homeowners can find the right solution for their heating needs.
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