Desa CTR25NR - Manual (Page 17)

www.desatech.com 17 113261-01C
TROUBLESHOOTING
WARNING: Turn off and unplug 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 positioned
wrong
2. Ignitor electrode broken
3. Ignitor electrode not con-
nected to ignitor cable
4. Ignitor cable pinched or wet
5. Broken ignitor cable
6. Bad ignitor
7. Battery not installed, battery
power low or battery not in-
stalled correctly
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Pilot knob not fully pressed in
while pressing ignitor button
3. Air in gas lines when in-
stalled
4. Depleted gas supply (propane/
LP gas)
5. ODS/pilot is clogged
6. Gas regulator setting is not
correct
REMEDY
1. Replace pilot assembly
2. Replace pilot assembly
3. Reconnect ignitor cable
4. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
5. Replace ignitor cable
6. Replace ignitor
7. Install new alkaline battery in
electronic ignitor. Verify bat-
tery is installed correctly. See
page 9
1. Turn on gas supply or open
equipment shutoff valve
2. Turn to PILOT/IGN position.
Fully press in pilot knob while
pressing ignitor button
3. Continue holding down pilot
knob. Repeat igniting opera-
tion until air is removed
4. Contact local propane/LP gas
company
5. Clean ODS/pilot (see Cleaning
and Maintenance, page 16) or
replace ODS/pilot assembly
6. Replace gas regulator
OBSERVED PROBLEM
When ignitor button is pressed
in, there is no spark at ODS/
pilot
When ignitor button is pressed
in, there is a spark at ODS/Pilot
but no ignition