Troubleshooting

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.

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

The two most common causes of a malfunctioning gas appliance are:

1.Loose wiring connections

2.Construction debris clogging the pilot and/or gas control valve filter

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

Manual Ignition System Only

1. Ignitor electrode not con-

1.

Reconnect ignitor cable

When ignitor button is pressed,

 

nected to ignitor cable

2.

Free ignitor cable if pinched

there is no spark at ODS/pilot

2. Ignitor cable pinched or wet

 

 

 

 

by any metal or tubing. Keep

 

3.

Piezo ignitor nut is loose

3.

ignitor cable dry

 

Tighten nut holding piezo ig-

 

 

 

 

nitor to base panel of log set. Nut

 

4.

Broken ignitor cable

4.

is located behind base panel.

 

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode positioned

6.

Replace pilot assembly

 

7.

wrong

7.

Replace pilot assembly

 

Ignitor electrode broken

 

 

 

 

 

Manual Ignition System Only

1. Gas supply turned off or equip-

1.

Turn on gas supply or open

When ignitor button is pressed,

 

ment shutoff valve closed

2.

equipment shutoff valve

there is spark at ODS/pilot but

2. Control knob not in PILOT

Turn control knob to PILOT

no ignition

3.

position

3.

position

 

Control knob not pressed in

Press in control knob while in

 

4.

while in PILOT position

4.

PILOT position

 

Air in gas lines when in-

Continue holding down con-

 

 

stalled

 

trol knob. Repeat igniting op-

 

5.

Depleted gas supply (pro-

5.

eration until air is removed

 

Contact local propane/LP gas

 

6.

pane/LP only)

6.

company

 

ODS/pilot is clogged

Clean ODS/pilot (see Cleaning

 

 

 

 

and Maintenance, page 23) or

 

7.

Gas regulator setting is not

7.

replace ODS/pilot assembly

 

Replace gas regulator

 

 

correct

 

 

 

117437-01B

www.desatech.com

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Desa (V)CB36N(E), (V)CB36P(E) operation manual Troubleshooting, Observed Problem Possible Cause Remedy

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