Desa 125-R owner manual Troubleshooting, Symptom Possible Cause Remedy

Page 8

TROUBLESHOOTING

WARNING: Never attempt to service heater while it is connected to propane supply, operating or hot. Severe burns can occur.

SYMPTOM

POSSIBLE CAUSE

REMEDY

 

 

 

 

Burner fails to light

1. Gas supply valve closed

1.

Open gas supply valve slowly

 

2.

Excess-flow check valve

2.

Close propane supply valve

 

 

closed (propane/LP units

 

on propane tank and reopen

 

 

only)

 

slowly

 

3.

Blockage in burner orifice

3.

Replace burner orifice

 

4.

Piezo ignition system not

4.

Assure ignitor electrode gap is

 

 

sparking

 

5.0 mm (.195 in). Check wire

 

 

 

 

lead for damage Replace piezo

 

 

 

 

ignitor and/or ignitor electrode

 

 

 

 

as necessary. Do not bend elec-

 

 

 

 

trode, this may cause breakage

 

 

 

 

Pilot lights but goes out when

1. Not enough warm-up time

1.

Relight, hold automatic control

automatic control valve button

 

 

 

valve button in 45 seconds

is released

2. Low gas pressure

2.

Check for proper gas supply

 

3.

Thermocouple loose or needs

3.

Tighten connection or replace

 

 

to be replaced

 

thermocouple

 

4.

Automatic control valve needs

4.

Replace automatic control

 

 

to be replaced

 

valve

 

 

 

 

Burn rate is low

1. Main burner valve not fully

1.

Fully open main burner valve

 

 

open

 

by pushing in control knob

 

 

 

 

and turning counterclockwise

 

 

 

 

towards HIGH position until

 

 

 

 

it stops

 

2.

Plugged gas orifices

2.

Replace gas orifice

 

3.

Low gas pressure

3.

Check gas supply; check

 

4.

Low fuel supply

 

regulator output

 

4.

Consult gas supplier to deter-

 

 

 

 

mine adequate supply. If using

 

 

 

 

propane/LP gas, the tank could

 

 

 

 

be empty

8

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114248-01A

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Contents General Hazard Warning Models 125-R and 125-RNTable of Contents Safety InformationTheory of Operation Product IdentificationUnpacking Ventilation Installation Instructions GAS SupplyPROPANE/LP GAS Model 125-R only Natural GAS Model 125-RN onlyLocating Heater PipingFor Model 125-R for USE with PROPANE/LP GAS only For Model 125-RN for USE with Natural GAS onlyOperating Instructions Lighting HeaterMaintenance SpecificationsPilot Burner Adjustment Shutting OFF HeaterTroubleshooting Symptom Possible Cause RemedyReplacement Parts AccessoriesParts Under Warranty Parts not Under WarrantyIllustrated Parts Breakdown Parts List Limited Warranty Warranty and Repair ServiceKeep this Warranty Avertissement DE Risque Général Modèles 125-R ET 125-RNTable DES Matières Information Relative LA SécuritéIdentification DU Produit DéballageInstructions Pour ’INSTALLATION Alimentation EN GAZVentilation Modèle 125-R AU GAZ Propane ET GPL SeulementPlacement DE TuyauterieAllumage DE Lappareil DE Chauffage Identification des pièces deEntretien SpécificationsArrêt DE L’APPAREIL DE Chauffage Ajustement DU Brûleur DE LA VeilleuseSymptôme Cause Possible Solution DépannageAccessoires Pièces DE RechangePièces Sous Garantie Pièces QUI NE Sont PAS Sous GarantieVUE Détaillée DES Pièces Liste DES Pièces Garantie Limitée Service DE Garantie ET DE RéparationConservez Cette Garantie

125-R specifications

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