Desa LSFG20NT, VSF30PT installation manual Troubleshooting, Observed Problem Possible Cause Remedy

Page 16

Troubleshooting

WARNING:Turnoffandunplugheaterandletcoolbeforeservicing. Only a qualified service person should service and repair heater.

CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

When ignitor button is pressed

1. Ignitor electrode positioned

1.

Replace pilot assembly

in, there is no spark at ODS/

 

wrong

2.

Replace pilot assembly

pilot

2. Ignitor electrode broken

 

3.

Ignitor electrode not con-

3.

Reconnect ignitor cable

 

4.

nected to ignitor cable

4.

Free ignitor cable if pinched

 

Ignitor cable pinched or wet

 

 

 

 

by any metal or tubing. Keep

 

5.

Broken ignitor cable

5.

ignitor cable dry

 

Replace ignitor cable

 

6.

Bad piezo ignitor

6.

Replace piezo

 

7.

Piezo ignitor nut is loose

7.

Tighten nut holding piezo

 

 

(piezo ignition models only)

 

ignitor. Nut is located inside

 

8.

Battery not installed, battery

8.

heater cabinet at top

 

Install new alkaline battery

 

 

power low or battery not

 

in electronic ignitor. Verify

 

 

installed correctly (electronic

 

battery is installed correctly

 

 

ignition models only)

 

 

 

 

 

 

 

 

When ignitor button is pressed

1. Gas supply turned off or equip-

1.

Turn on gas supply or open

in, there is a spark at ODS/Pilot

 

ment shutoff valve closed

2.

equipment shutoff valve

but no ignition

2. Thermostat control knob not

Turn to PILOT/IGN posi-

 

 

fully pressed in while pressing

 

tion. Fully press in thermostat

 

 

ignitor button

 

control knob while pressing

 

3.

Air in gas lines when in-

3.

ignitor button

 

Continue holding down con-

 

 

stalled

 

trol knob. Repeat igniting op-

 

4.

Depleted gas supply (propane/

4.

eration until air is removed

 

Contact local propane/LP gas

 

5.

LP gas)

5.

company

 

ODS/pilot is clogged

Clean ODS/pilot (see Cleaning

 

 

 

 

and Maintenance, page 15) or

 

6.

Gas regulator setting is not

6.

replace ODS/pilot assembly

 

Replace gas regulator

 

7.

correct

7.

Turn thermostat control knob

 

Thermostat control knob is not

 

 

in pilot position

 

to pilot position

16

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Image 16
Contents Models SF20NT, SF20PT ResidentialGarage Models Table of Contents Safety InformationSafety Information Safety Information Product FeaturesLocal Codes Product IdentificationProviding Adequate Ventilation Air For Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR AIR for Combustion VentilationVentilation Air From Inside Building Installation Installation ItemsCheck GAS Type Ventilation Air From OutdoorsInstalling Heater to Wall Locating HeaterConnecting to GAS Supply Marking Screw LocationsPlacing Heater On Mounting Screws Locate hardware packet behind left side door of heaterNatural Gas Propane/LPPressure Testing Heater Gas Connections Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Open equipment shutoff valve see FigureInstalling Refractory and Front Panel For Your Safety Read Before LightingOperating Heater Lighting Instructions To Turn OFF GAS To ApplianceShutting Off Heater Shutting Off Burner Only pilot stays litManual Lighting Procedure Inspecting HeaterOperation Pilot Flame PatternCleaning Maintenance ODS/PILOT and BurnerBurner Pilot Air Inlet CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Noise when burner is lit Dirty or partially clogged Clean burner see CleaningWhen heated, vapors from Turn heater off when using Turn off air supplyTechnical Service Service Publications Service HintsWhen Gas Pressure Is Too Low Gas leak. See WarningSpecifications LSF20NT, LSFG20NT, VSF20NT LSF20PT, LSFG20PT, VSF20PTVSFG20NT VSGF20PT SF30NT SF30PTReplacement Parts AccessoriesParts Central Illustrated Parts Breakdown Parts List Warranty Information Keep this WarrantyModelos Consumidor Conserve este manual para referencias futurasModelos Para Cochera Tabla de contenido Información de seguridadInformación de seguridad Códigos locales Identificación del ProductoDesempaque Características del ProductoAire para combustión Ventilación Cómo Procurar LA Ventilación AdecuadaConstrucción inusualmente sellada Espacio confinado y no confinadoAire Para Ventilación Aire Para Combustión VentilaciónAire del interior de la construcción para Ventilación Verifique EL Tipo DE GAS InstalaciónArtículos DE Instalación Ubicación DEL Calentador Donde cortinas, muebles, ropaDe las partes anterior, superior Fuertes corrientes de aireInstalación DEL Calentador EN LA Pared Doble en anclaje de pared como se muestra en la figuraColocación del calentador en los Tornillos de montaje Coloque el calentador en los tornillos de montajeConexión AL Suministro DE GAS Ventila apuntando hacia abajoGas natural Revisión DE LAS Conexiones DE GASRepare todas las fugas inmediatamente Abra la válvula de cierre del equipo consulte la figura Instale el panel anterior y el refractarioInstalación del panel anterior y el refractario Instale un difusor frontal como se muestra en la figuraFuncionamiento del Calentador Instrucciones DE EncendidoInspección del Calentador Cómo Cerrar EL Suministro DE GAS AL AparatoFuncionamiento DEL Encendido ManualLimpieza y Mantenimiento Inspección delPatrón DE LA Llama DEL Calentador Especificaciones GabineteSF30NT LSF30NT, VSF30NTSolución de problemas Causa Posible RemedioSolución DE Problemas El problema desaparecerá Llama amarilla durante la No hay suficiente aireCombustión En el quemadorServicio técnico Publicaciones de servicioConsejos para servicio Al inicio de la páginaAccesorios Piezas de repuestoCentral de piezas Válvula DE Cierre DEL Equipo GA5010Clasificación ilustrada de piezas Lista DE Piezas Información de garantía Guarde Esta Garantía

VSF30PT, LSFG20NT specifications

The Desa VSF30PT and LSFG20NT represent two significant innovations in the HVAC (Heating, Ventilation, and Air Conditioning) industry, catering to diverse consumer needs and preferences.

The Desa VSF30PT is a powerful and efficient forced-air heater designed for residential and light commercial applications. One of its primary features is its high-efficiency output, providing a substantial heating capacity while consuming minimal energy. The unit is equipped with a robust heat exchanger that enhances its performance, ensuring optimal heat distribution throughout the space. A notable characteristic of the VSF30PT is its user-friendly digital thermostat, allowing for precise temperature control, which can significantly improve comfort levels and reduce energy consumption.

Additionally, the Desa VSF30PT incorporates advanced safety features, such as automatic shut-off protection in case of overheating or airflow obstruction. Its compact design makes it easy to install in tight spaces, providing flexibility in placement without compromising on effectiveness. The unit operates quietly, minimizing noise disturbances, which is especially important in residential settings.

On the other hand, the LSFG20NT is an innovative gas furnace that combines performance with energy efficiency. This model is equipped with a variable-speed blower motor that allows for consistent airflow and improved humidity control, making it an excellent choice for homeowners who prioritize comfort. Its multi-stage heating design ensures that the furnace operates at different levels according to the heating demand, optimizing energy usage and enhancing overall efficiency.

The LSFG20NT also features a modulating gas valve, which adjusts the burner output to provide just the right amount of heat for any given situation. This not only improves comfort but also contributes to significant energy savings over time. Furthermore, the LSFG20NT is designed with advanced filtration systems that improve indoor air quality by trapping dust, allergens, and other particles.

Both units showcase the latest technology in HVAC systems, emphasizing energy efficiency, safety, and user convenience. With their unique features and characteristics, the Desa VSF30PT and LSFG20NT stand out in the market, making them ideal choices for those seeking reliable and efficient heating solutions. Whether for residential or light commercial applications, these models promise performance that meets the demands of modern-day heating needs.