Desa VN600BA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

Page 13

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 heater 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.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

1.

Ignitor cable pinched or wet

1.

Free ignitor cable if pinched by any

spark at ODS/pilot

 

 

 

metal or tubing. Keep ignitor cable dry

 

2.

Ignitor electrode not connected to igni-

2.

Reconnect ignitor cable

 

 

tor cable

 

 

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to

 

 

 

 

heater cabinet. Nut is located inside

 

 

 

 

heater cabinet at top

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Ignitor electrode broken

5.

Replace ignitor

 

6.

Bad piezo ignitor

6.

Replace piezo ignitor

 

7.

Ignitor electrode positioned wrong

7.

Replace ignitor

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

spark at ODS/pilot but no ignition

 

shutoff 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.

ODS/pilot is clogged

5.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace ODS/

 

 

 

 

pilot assembly

 

6.

Gas regulator setting is not correct

6.

Replace gas regulator

 

 

 

 

 

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.

Equipment shutoff valve not fully open

3.

Fully open equipment shutoff valve

 

4.

Thermocouple connection loose at con-

4.

Hand tighten until snug, then tighten 1/4

 

 

trol valve

 

turn more

 

5.

Pilot flame not touching thermocouple,

5.

A) Contact local natural gas company

 

 

which allows thermocouple to cool,

 

 

 

 

causing pilot flame to go out. This prob-

 

B) Clean ODS/pilot (see Cleaning and

 

 

lem could be caused by one or both of

 

Maintenance, page 12) or replace ODS/

 

 

the following:

 

pilot assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

7.

Control valve damaged

7.

Replace control valve

www.desatech.com

Continued

104271

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation Manual VN600BABlue Flame Natural GAS Heater Safety InformationProduct Product FeaturesLocal Codes UnpackingProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining 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 Installation Items InstallationInstalling Heater to Wall Locating HeaterInstalling Bottom Mounting Screw Installing Two Mounting ScrewsPlacing Heater On Mounting Screws Removing Front Panel Of HeaterGas Connection Connecting to GAS SupplyPressure Testing Gas Supply Piping System For Your Safety Read Before LightingPressure Testing Heater Gas Connections Operating HeaterLighting Instructions Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off HeaterInspecting Burner Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Observed Problem Possible Cause VN600BA Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListReplacement Parts SpecificationsTechnical Service Service Hints104271 Warranty Information

VN600BA specifications

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