www.desatech.com
108660-01E
3
OBSERVED PROBLEM
Pilot goes out when wall switch
is ON
Spark ignitor will not light pilot
after repeated triggering of
red button
Fireplace produces a clicking/
ticking noise just after burner
is lit or shut off
POSSIBLE CAUSE
1. Millivolt output on thermo-
pile too high
1. Defective ignitor (no spark
at electrode)
. Defective pilot or mis-
aligned electrode at pilot
(spark at electrode)
3. No gas or low gas pres-
sure
4. If using propane/LP gas,
no propane/LP gas in
tank
1. Metal expanding while
heating or contracting
while cooling
REMEDY
1. Replace thermopile
1. Check for spark at the
electrode and pilot; 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 lighting and a lon-
ger 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,
replace pilot
3. A) Check remote shut off
valves from fireplace. Valve
will be near fireplace or near
the main. There can be more
than one valve between the
fireplace and main
B) Low pressure can be
caused by bent line, too
narrow diameter of pipe, or
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
1. This is normal with most
fireplaces. If noise is ex-
cessive, contact qualified
service person
TROUBLESHOOTING
Continued
