Troubleshooting - Desa VN18B Safety Information And Installation Manual

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.
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
18

TROUBLESHOOTING

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
installed correctly
1. Gas supply turned off or
equipment shutoff valve
closed
2. Control knob not fully
pressed in while pressing
ignitor button
3. Air in gas lines when in-
stalled
4. Depleted gas supply (pro-
pane/LP gas)
5. ODS/pilot is clogged
6. Gas regulator setting is not
correct
7. Control knob is not in pilot
position
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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
battery is installed correctly
1. Turn on gas supply or open
equipment shutoff valve
2. Turn to PILOT position. Fully
press in control knob while
pressing ignitor button
3. Continue holding down
control knob. Repeat ignit-
ing operation until air is
removed
4. Contact local propane/LP
gas company
5. Clean ODS/pilot (see Clean-
ing and Maintenance, page
17) or replace ODS/pilot
assembly
6. Replace gas regulator
7. Turn control knob to pilot
position
119342-01B