Desa P325 Owner's Operation And Installation Manual page 20

TROUBLESHOOTING
20
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Pilot goes out when wall switch is ON
Spark ignitor will not light pilot after re-
peated triggering of red button
POSSIBLE CAUSE
1. Millivolt output on thermopile too high
1. Defective ignitor (no spark at electrode)
2. Defective pilot or misaligned electrode
at pilot (spark at electrode)
3. No gas or low gas pressure
4. If using propane/LP gas, no propane/LP
gas in tank
For more information, visit www.desatech.com
For more information, visit www.desatech.com
REMEDY
1. Replace thermopile
1. Check for spark at the electrode and pi-
lot; if no spark and electrode wire is
properly connected, replace ignitor
2. Using a match, light pilot. If pilot lights,
turn off pilot and trigger the red button
again. If pilot lights, an improper gas/
air mixture caused the improper light-
ing and a longer purge period is recom-
mended. If pilot will not light, check gap
at electrode and pilot. Gap should be 1/
8" to have a strong spark. If okay, re-
place pilot
3. A) Check remote shut off valves from
fireplace. Usually there is a valve near the
fireplace and sometimes there is a valve
near the main. There can be more than one
(1) valve between the fireplace and main
B) Low pressure can be caused by a
variety of situations such as bent line, too
narrow diameter of pipe, or even low line
pressure. Check for kinked lines. If none,
consult with plumber or gas supplier
4. Check propane/LP supply and contact
local propane/LP supplier
108660-01D