www.desatech.com
107068-01K
1
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 not connected
to ignitor cable
2. Ignitor cable pinched or wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode positioned
wrong
7. Ignitor electrode broken
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. Depleted gas supply (propane/
LP only)
6. ODS/pilot is clogged
7. Gas regulator setting is not correct
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 ther
-
mocouple, which allows ther
-
mocouple to cool, causing 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
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 released
REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3. Tighten nut holding piezo ignitor
to base panel of log set. Nut is
located behind base panel.
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace pilot assembly
7. 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 control
knob. Repeat igniting operation
until air is removed
5. Contact local propane/LP gas
company
6. Clean ODS/pilot (see
Cleaning
and Maintenance
, page 19) or
replace ODS/pilot assembly
7. Replace gas regulator
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
Clean-
ing and Maintenance
, page 19)
or replace ODS/pilot assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve