Desa VTDMV24NA, VTDMV24PA, VTDMV18PA Troubleshooting, Observed Problem Possible Cause Remedy

Page 13

TROUBLESHOOTING

WARNING: Turn off appliance and let cool before servicing. 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 not con-

1.

Reconnect ignitor cable

there is no spark at ODS/pilot

 

nected to ignitor cable

 

 

 

2.

Ignitor cable pinched or

2.

Free ignitor cable if pinched

 

 

wet

 

by any metal or tubing. Keep

 

 

 

 

ignitor dry

 

3.

Broken ignitor cable

3.

Replace ignitor cable

 

5.

Bad piezo ignitor

4.

Replace piezo ignitor

 

6.

Ignitor electrode positioned

5.

Replace pilot assembly for

 

 

wrong or broken

 

remote-ready units; replace

 

 

 

 

ignitor electrode for variable

 

 

 

 

manually controlled units

When ignitor button is pressed in there is spark at ODS/pilot but no ignition

1.Gas supply turned off or equipment shutoff valve closed

2.Control knob not in PILOT position

3.Control knob not pressed in while in PILOT position

4.Air in gas lines when in- stalled

5.Depleted gas supply (pro- pane/LP only)

6.ODS/pilot is clogged

7.Gas regulator setting is in- correct

1.Turn on gas supply or open equipment shutoff valve

2.Turn control knob to PILOT position

3.Press in control knob while in PILOT position

4.Continue holding down con- trol knob. Repeat igniting op- eration until air is removed

5.Contact local propane/LP gas company

6.Clean ODS/pilot (see Cleaning and Maintenance, page 12) or replace ODS/pilot assembly

7.Replace gas regulator

114926-01B

www.desatech.com

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Contents VTDMV24NA, VTDMV24PA VTDMV18NA and VTDMV18PA What to do if YOU Smell GASTable of Contents Safety Information High traffic areas Windy or drafty areas Local CodesInstallation Product FeaturesProduct Identification UnpackingFlue Opening Specifications Installation and ClearancesVenting Specifications for InstallationConnecting to GAS Supply Installing ApplianceInstallation Items Needed Test Pressures In Excess Of 1/2 Psig Checking GAS ConnectionsNatural From Gas Meter 5 W.C.** to 10.5 W.C. Pressure KPa Propane/LPPressure Testing Appliance Gas Connections Placement of Loose EmbersTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Operating Appliance Pilot Flame Pattern Inspecting BurnersON/OFF Series Model Ghrcb Service Hints Cleaning MaintenanceTechnical Service Replacement PartsObserved Problem Possible Cause Remedy TroubleshootingSee Wiring Diagram, Maintenance, Statement at top Gas leak. See WarningGas leak. See Warning statement at top Accessories SpecificationsWiring Diagram VTDMV24NA, VTDMV24PA VTDMV18NA, VTDMV18PA Illustrated Parts BreakdownParts List Keep this Warranty Warranty InformationLimited Warranty Vented GAS LOG Appliances