Desa CSG3924PR, RL24NR, CTB3924NT, CSG3924NR, CTB3924NR Refer to Air for Combustion and Venti

Page 25

TROUBLESHOOTING

25

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

One or more burners do not light after ODS/

1.

Inlet gas pressure is too low

1.

Contact local natural or propane/LP gas

pilot is lit

 

 

 

company

 

2.

Burner orifice(s) clogged

2. Clean burner(s) (see Cleaning and Mainte-

 

 

 

 

nance, page 23) or replace burner orifice(s)

 

3.

Mislocated crossover tube

3.

Contact qualified service person

 

4.

Thermopile leads disconnected or im-

4.

Reconnect leads (see Wiring Diagram,

 

 

properly connected (Remote-Ready

 

page 28)

 

 

Models Only)

 

 

 

5.

Burners will not come on in remote po-

5.

Replace battery in transmitter and

 

 

sition (Remote-Ready Models Only)

 

receiver

 

 

 

 

 

Delayed ignition of one or more burners

1.

Manifold pressure is too low

1.

Contact local natural or propane/LP gas

 

 

 

 

company

 

2.

Burner orifice(s) clogged

2.

Clean burner(s) (see Cleaning and Main-

 

 

 

 

tenance, page 23) 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 23) or replace burner orifice

 

2.

Damaged burner

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

Yellow flame in front/middle burner

1.

Not enough air

during burner combustion (VRL24NT/PT,

 

 

VRL24NR/PR, VRL30NT/PT, VRL30NR/

 

 

PR, CSG3924NT/PT, CSG3924NR/PR)

2.

Gas regulator defective

Yellow flame in front burner during burner

 

 

combustion (CTB3924NT/PT, CTB3924NR/PR)

1.Check burner(s) for dirt and debris. If found, clean burner(s) (see Cleaning and Maintenance, page 23)

2.Replace gas regulator

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

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 or propane/LP gas company

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

ances (see pages 8 through 10)

4.

Dirty or partially clogged burner

4.

Clean burners (see Cleaning and Main-

 

orifice(s)

 

tenance, page 23)

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. may turn into white powder residue

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

Moisture/condensation noticed on windows 1. Not enough combustion/ventilation air

1. Refer to Air for Combustion and Venti-

 

lation requirements (page 5)

For morevisit www..com

110021-01C

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualSafety Information Table of ContentsSafety Information Product Identification Optional Remote Control AccessoriesLocal Codes UnpackingAIR for Combustion and Ventilation Product FeaturesDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation and Clearances for VENT-FREE Operation InstallationCheck GAS Type See Between 8 Minimum Noncombustible Material ClearancesMantel Clearances Determining Minimum Mantel Clearance When Using a HoodFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Remote-Ready Models OnlyAttaching Extension Plates to Base Assembly 30 Model Only Connecting to GAS SupplyExternal Regulator With Vent Pointing Down Pressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Log #1 Ember Bed Model CSG3924NR Shown Installing LogsInstalling Log #2 Right and Log #3 Left Model VRL30NR Shown Operating Heater Attaching Grate to Base AssemblyAdding Lava Rock Lighting InstructionsShutting Off Heater To Turn OFF GAS to ApplianceShutting Off Burners Only pilot stays lit REMOTE-READY Models For Your Safety Read Before Lighting Manual Lighting ProcedureThermostat Control Operation Control Knob Rear Burner Thermostat Control Operation Optional Remote OperationGhrc Series Operation Ghrcta Series OperationPilot Flame Pattern Inspecting BurnersBurner Flame Patterns Cleaning Burner Injector Holders and Pilot AIR Inlet Holes Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement Important Do not crimp capillary Optional Positioning of Thermostat Sensing BulbWiring Diagram SpecificationsService Hints Technical ServiceFor more Visit www Com Illustrated Parts BreakdownTHERMOSTAT-CONTROLLED VRL24NT, VRL24PT VRL30NT, VRL30PT THERMOSTAT-CONTROLLED Parts ListCSG3924NR, CSG3924PR CTB3924NR, CTB3924PR REMOTE-READY VRL24NR, VRL24PR VRL30NR, VRL30PRREMOTE-READY Accessories Replacement PartsOwners Registration Form Postage Required 110021-01C Not a UPC

CSG3924NR, CTB3924NR, VRL24PR, VRL30NR, RL24NR specifications

Desa VRL30NR, CSG3924PR, RL24NR, CSG3924PT, and CTB3924NT are advanced heating units developed by Desa, a brand recognized for its innovation in heating technologies. These models cater to a variety of consumer needs, offering efficient, reliable, and cost-effective heating solutions for residential and commercial applications.

The Desa VRL30NR is a powerful model known for its exceptional performance and efficiency. It features an intuitive digital thermostat for precise temperature control, ensuring optimal comfort. The unit is designed with an advanced airflow system that maximizes heat distribution throughout the space, making it ideal for larger rooms or open-concept spaces. The VRL30NR is also equipped with safety features such as an automatic shut-off mechanism that activates in case of overheating or tip-over, providing added peace of mind.

In contrast, the CSG3924PR and CSG3924PT models offer versatility with a sleek design and robust functionality. Both models come with an adjustable flame height feature, allowing users to customize their heating experience based on preference and room size. These units are designed for easy installation and operation, often incorporating wall-mounted options to save floor space. The incorporation of energy-efficient technologies ensures that they consume less power while still delivering powerful heating output, making them an environmentally friendly choice.

The RL24NR model stands out with its compact design, making it suitable for smaller spaces. This model prioritizes aesthetics without compromising on performance. It is equipped with a quiet operation mode, making it perfect for bedrooms or offices where noise levels need to be minimal. The RL24NR also boasts a quick heat-up time, providing instant warmth when needed.

Lastly, the CTB3924NT model offers the best in technology and features. It includes a built-in air purification system that not only heats but also improves indoor air quality. This model is equipped with Wi-Fi connectivity, allowing users to control their heating remotely via a smartphone app. Its smart technology integrates with home automation systems, enhancing convenience and user experience.

Overall, each of these Desa models provides reliable heating solutions tailored to diverse needs and spaces. Their combined focus on efficiency, safety, and user-friendly features makes them standout options in the competitive heating market.
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