Desa VS18PRA, CFS18PRA, VS24PRA, VS30PRA Troubleshooting, Observed Problem Possible Cause Remedy

Page 19

OWNER’S MANUAL

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

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

WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice 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.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

1.

Ignitor electrode not connected to igni-

1.

Reconnect ignitor cable

spark at ODS/pilot

 

tor cable

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any

 

 

 

 

metal or tubing. Keep ignitor cable dry

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to base

 

 

 

 

panel of log set. Nut is located behind

 

 

 

 

base panel

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode positioned wrong

6.

Replace ignitor

 

7.

Ignitor electrode broken

7.

Replace ignitor

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or manual shutoff

1.

Turn on gas supply or open manual

spark at ODS/pilot but no ignition

 

valve closed

 

shutoff valve

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

PILOT position

 

position

 

4.

Air in gas lines when installed

4.

Continue holding down control knob.

 

 

 

 

Repeat igniting operation until air is re-

 

 

 

 

moved

 

5.

Depleted gas supply

5.

Contact local propane gas company

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 18) or replace ODS/

 

 

 

 

pilot assembly

 

7.

Gas control setting is not correct

7.

Replace gas control

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Control knob not fully pressed in

1.

Press in control knob fully

control knob is released

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control

 

 

 

 

knob pressed in 30 seconds

 

3.

Manual shutoff valve not fully open

3.

Fully open manual shut-off valve

 

4.

Pilot flame not touching thermocouple,

4.

A) Contact local propane gas company

 

 

which allows thermocouple to cool,

 

B) Clean ODS/pilot (see Cleaning and

 

 

causing pilot flame to go out. This prob-

 

Maintenance, page 18) or replace ODS/

 

 

lem could be caused by one or both of

 

pilot assembly

 

 

the following:

 

 

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

5.

Thermocouple connection loose at con-

5.

Hand tighten until snug, then tighten 1/4

 

 

trol valve

 

turn more

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

7.

Gas control damaged

7.

Replace gas control

www.desatech.com

Continued

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Contents What to do if YOU Smell GAS Desa InternationalDesa International Unvented PROPANE/LP GAS LOG Heater Safety InformationProduct Identification Product FeaturesOptional Remote Control Accessories UnpackingConfined and Unconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Vent-Free Operation Only InstallationInstallation Clearances Check GAS TypeMinimum Noncombustible Material Clearances If Not Using Mantel If Using MantelDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Floor ClearancesArea of Various Standard Round Flues Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply Test Pressures In Excess Of 1/2 Psig Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Checking GAS ConnectionsInstalling Front Log #1 Installing LogsOperating Heater For Your Safety Read Before LightingLighting Instructions Shutting Off Burners Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS to Appliance Shutting Off HeaterGhrct Operation Optional Remote OperationThermostat Control Operation Ghrc OperationPilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern Replacement Parts Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingSee Wiring Diagram, Above Gas leak. See Warning statementVariable Control CFS18PRA, VS18PRA VS24PRA, VS30PRA Illustrated Parts BreakdownCFS18PRA, VS18PRA VS24PRA, VS30PRA Parts ListService Hints SpecificationsWiring Diagram Technical ServiceAccessories Warranty Information