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 pilot. This can damage 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 pilot

2.

nected to ignitor cable

2.

Free ignitor cable if pinched

 

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

 

 

 

 

ignitor. Nut is located behind

 

4.

Broken ignitor cable

4.

the mounting bracket

 

Replace ignitor cable

 

5.

Bad piezo ignitor

5.

Replace piezo ignitor

 

6.

Ignitor electrode broken

6.

Replace pilot assembly

 

7.

Ignitor electrode positioned

7.

Replace pilot assembly

 

 

wrong

 

 

 

When ignitor button is pressed,

1. Gas supply turned off or equip-

1.

Turn on gas supply or open

there is spark at pilot but no

 

ment shutoff valve closed

2.

equipment shutoff valve

ignition

2. Gas control knob not in PILOT

Turn gas control knob to PI-

 

3.

position

3.

LOT position

 

Gas control knob not pressed

Press in gas control knob while

 

4.

in while in PILOT position

4.

in PILOT position

 

Air in gas lines when in-

Continue holding down control

 

 

stalled

 

knob. Repeat igniting opera-

 

5.

Depleted gas supply (propane/

5.

tion until air is removed

 

Contact local propane/LP gas

 

6.

LP models only)

6.

company

 

Pilot is clogged

Clean pilot (see Cleaning and

 

 

 

 

Maintenance, page 30) or replace

 

7.

Gas regulator setting is not

7.

pilot assembly

 

Replace gas control

 

 

correct

 

 

 

32

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111250-01E

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Desa (V)T36NA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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