Desa csbpt Benutzerhandbuch

www.desatech.com

111487-01E

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.

POSSIBLE CAUSE

1. Ignitor electrode not con-

nected to ignitor cable

2. Ignitor cable pinched or

wet

3. Broken ignitor cable

4. Bad piezo ignitor

5. Ignitor electrode broken

6. Ignitor electrode positioned

wrong

1. Gas supply turned off or equip-

ment 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 installed

5. ODS/pilot is clogged

6. Gas regulator setting is not

correct

7. Depleted gas supply (pro-

pane/LP only)

1. Control knob not fully

pressed in

2. Control knob not pressed in

long enough

3. Equipment shutoff valve not

fully open

4. Pilot flame not touching

thermocouple, which allows

thermocouple to cool, caus-

ing pilot ﬂame to go out. This

problem could be caused by

one or both of the following:

A) Low gas pressure

B) Dirty or partially clogged

ODS/pilot

5. Thermocouple connection

loose at control valve

6. Thermocouple damaged

7. Control valve damaged

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched

by any metal or tubing. Keep

ignitor cable dry

3. Replace ignitor cable

4. Replace piezo ignitor

5. Replace pilot assembly

6. Replace pilot assembly

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. Clean ODS/pilot (see Cleaning

and Maintenance, page 14) or

replace ODS/pilot assembly

6. Replace gas control

7. Contact local propane/LP gas

company

1. Press in control knob fully

2. After ODS/pilot lights, keep con-

trol knob pressed in 30 seconds

3. Fully open equipment shutoff

valve

4. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning and Maintenance,

page 14) or replace ODS/pilot

assembly

5. Hand tighten until snug, then

tighten 1/4 turn more

6. Replace pilot assembly

7. Replace control valve

OBSERVED PROBLEM

When ignitor button is pressed,

there is no spark at ODS/pilot

When ignitor button is pressed,

there is spark at ODS/pilot but

no ignition

ODS/pilot lights but ﬂame goes

out when control knob is re-

leased