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.

 

OBSERVED PROBLEM POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no spark at ODS/pilot

1.

Ignitor electrode not con-

1.

Reconnect ignitor cable

 

nected to ignitor cable

 

 

2.

Ignitor cable pinched or

2.

Free ignitor cable if pinched

 

wet

 

by any metal or tubing. Keep

 

 

 

ignitor cable dry

3.

Broken ignitor cable

3.

Replace ignitor cable

4.

Bad piezo ignitor

4.

Replace piezo ignitor

5.

Ignitor electrode broken

5.

Replace pilot assembly

6.

Ignitor electrode positioned

6.

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 ODS/pilot but

 

ment shutoff valve closed

 

equipment shutoff valve

no ignition

2. Control knob not in PILOT

2.

Turn control knob to PILOT

 

 

position

 

position

 

3.

Control knob not pressed in

3.

Press in control knob while in

 

 

while in PILOT position

 

PILOT position

 

4.

Air in gas lines when installed

4.

Continue holding down con-

 

 

 

 

trol knob. Repeat igniting op-

 

 

 

 

eration until air is removed

 

5.

ODS/pilot is clogged

5.

Clean ODS/pilot (see Cleaning

 

 

 

 

and Maintenance, page 14) or

 

 

 

 

replace ODS/pilot assembly

 

6.

Gas regulator setting is not

6.

Replace gas control

 

 

correct

 

 

 

7.

Depleted gas supply (pro-

7.

Contact local propane/LP gas

 

 

pane/LP only)

 

company

ODS/pilot lights but flame goes

1. Control knob not fully

1.

Press in control knob fully

out when control knob is re-

 

pressed in

 

 

leased

2. Control knob not pressed in

2.

After ODS/pilot lights, keep con-

 

 

long enough

 

trol knob pressed in 30 seconds

 

3.

Equipment shutoff valve not

3.

Fully open equipment shutoff

 

 

fully open

 

valve

 

4.

Pilot flame not touching

4.

A) Contact local natural or

 

 

thermocouple, which allows

 

propane/LP gas company

 

 

thermocouple to cool, caus-

 

 

 

 

ing pilot flame to go out. This

 

B) Clean ODS/pilot (see

 

 

problem could be caused by

 

Cleaning and Maintenance,

 

 

one or both of the following:

 

page 14) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

5.

Thermocouple connection

5.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

16

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Desa Tech CSPBPT, CSBNT, CSPINT, CSBPT, CSPIPT, CSPBNT Troubleshooting, Observed Problem Possible Cause Remedy

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