Desa REM20PT Turn off air supply, Burner not Positioned, Or contracting while cooling, Blocked

Page 18

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

Yellow flame during burner

1. Not enough air

1.

Check burner for dirt and

combustion

 

 

 

 

debris. If found, clean burner

 

 

 

 

 

(see Cleaning and Mainte-

 

2.

Gas regulator defective

 

nance, page 15)

 

2.

Replace gas regulator

 

3.

Clogged or dirty burner

3.

Clean burner (see Cleaning

 

4.

Air blowing into heater

 

and Maintenance, page 15)

 

4.

Turn off air supply

 

5.

Burner not

positioned in

5.

Have a qualified service person

 

 

bracket properly

 

or installer inspect burner

 

 

 

 

Slight smoke or odor during

1. Residues from manufacturing

1.

Problem will stop after a few

initial operation

 

processes

 

 

hours of operation

 

 

 

 

Heater produces a clicking/tick-

1. Metal expanding while heating

1.

This is common with most heat-

ing noise just after burner is lit

 

or contracting while cooling

 

ers. If noise is excessive, contact

or shut off

 

 

 

 

qualified service person

 

 

 

 

Heater produces a whistling

1. Turning control knob to the

1.

Turn control knob to the low-

noise when burner is lit

 

highest position when burner

 

est position and let warm up

 

 

is cold

 

 

for a minute

 

2.

Air in gas line

2.

Operate burner until air is

 

 

 

 

 

removed from line. Have gas

 

 

 

 

 

line checked by local natural

 

 

 

 

 

or propane/LP gas company

 

3.

Air passageways on heater

3.

Observe minimum installation

 

 

blocked

 

 

clearances (see Figure 4, page 8)

 

4.

Dirty or partially clogged

4.

Clean burner (see Cleaning

 

 

burner orifice

 

 

and Maintenance, page 15)

 

 

 

 

 

or replace burner orifice

 

 

 

 

White powder residue forming

1. When heated, vapors from

1.

Turn heater off when using

within burner box or on adjacent

 

furniture polish, wax, carpet

 

furniture polish, wax, carpet

walls or furniture

 

cleaner, etc., may turn into

 

cleaners or similar products

 

 

white powder residue

 

 

 

 

 

 

Heater shuts off in use (ODS

1. Not enough fresh air is avail-

1.

Open window and/or door for

operates)

 

able

 

 

ventilation

 

2.

Low line pressure

2.

Contact local natural or pro-

 

3.

O D S / p i l o t

i s p a r t i a l l y

 

pane/LP gas company

 

3.

Clean ODS/pilot (see Cleaning

 

 

clogged

 

 

and Maintenance, page 15)

18

www.desatech.com

116307-01B

Page 17 Page 19
Image 18
Page 17 Page 19
Contents What to do if YOU Smell GAS Residential Models Garage ModelsTable of Contents Safety Information Product Features Local CodesUnpacking AIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR Ventilation Air From Inside BuildingCheck GAS Type InstallationInstallation Items Ventilation Air From OutdoorsColdest part of room Installing Heater to WallLocating Heater Attaching to wall stud Attaching to wall anchorPlacing Heater On Mounting Screws Connecting to GAS SupplyMarking Screw Locations Locate hardware packet behind left side door of heaterProtects it from freezing rain or sleet 30,000 Btu/Hr Models 1/2 or greaterBe upstream from heater see Figure Checking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa For Your Safety Read Before Lighting Installing Refractory and Front PanelOperating Heater Lighting Instructions Turn control knob clockwise to the OFF positionThermostat Control Operation Manual Lighting ProcedureInspecting Heater Pilot Flame PatternBurner Pilot AIR Inlet Cleaning MaintenanceODS/PILOT and Burner CabinetTroubleshooting Observed Problem Possible Cause RemedyContact local propane/LP gas company Assembly Goes out when control knob is Control knob not pressedProblem could be caused by Delayed ignition of burners Manifold pressure is too lowWhen heated, vapors from Turn heater off when using Noise when burner is litDirty or partially clogged Clean burner see Cleaning Turn off air supplyWhen Gas Pressure Is Too Low Technical ServiceService Publications Service Hints Gas leak. See WarningSpecifications SF30NT SF30PTLSF30NT, VSF30NT LSF30PT, VSF30PT Accessories Replacement PartsParts Central Illustrated Parts Breakdown Parts List Warranty Information Keep this WarrantyQUÉ Hacer SI Percibe Olor a GAS Modelos Modelos Para CocheraTabla DE Contenido Información DE Seguridad Desempaque Códigos LocalesIdentificación DEL Producto Características DEL ProductoConstrucción inusualmente sellada Aire Para Combustión VentilaciónCómo Procurar LA Ventilación Adecuada Espacio confinado y no confinadoAire Para Ventilación Aire del interior de la construcción para ventilaciónArtículos DE Instalación InstalaciónVerifique EL Tipo DE GAS Aire del exterior para ventilaciónEn áreas con mucho viento o Ubicación DEL CalentadorColocación del calentador en los tornillos de montaje Instalación DEL Calentador EN LA ParedDoble en anclaje de pared como se muestra en la figura Coloque el calentador en los tornillos de montajeConexión AL Suministro DE GAS Ventila apuntando hacia abajoRevisión DE LAS Conexiones DE GAS Pruebas de presiones mayores a 1/2 PSI 3.5 kPaGas natural Instalación del panel anterior y el refractario Abra la válvula de cierre del equipo consulte la figuraInstale el panel anterior y el refractario Instale un difusor frontal como se muestra en la figuraInstrucciones DE Encendido No intente encender ningún aparatoFuncionamiento DEL Inspección DEL CalentadorEntrada DE Aire AL Piloto DEL Quemador Inspección DELLimpieza Y Mantenimiento Como se muestra en la figuraSolución DE Problemas Causa Posible RemedioEl termopar está dañado Problema Observado Causa Posible RemedioBaja presión del gas Presione totalmente la perilla de controlSe enciende o se apaga El problema desapareceráCierre el suministro de aire Silbante cuando el quemadorServicio Técnico Consejos Para ServicioCuando la presión del gas de entrada sea muy baja Especificaciones SF30NTLSF30NT, VSF30NT Accesorios Piezas DE RepuestoCentral DE Piezas Clasificación Ilustrada DE Piezas Lista DE Piezas Información DE Garantía Guarde Esta Garantía
Top Page Image Contents