Design Dynamics DVF-36S-N - Manual (Page 25)

www.desatech.com 120441-01A 25
trOUBLeShOOtinG
WARNING: Turn off fireplace and let cool before servicing. Only
a qualified service person should service and repair fireplace.
CAUTION: Never use a wire, needle or similar object to clean
pilot. This can damage pilot unit.
Note: All troubleshooting items are listed in order of operation.
POSSIBLE CAUSE
1. No gas supply or shutoff
valve is OFF
2. Air in gas line
3. Construction debris clog-
ging pilot orifice
4. Low gas pressure
5. Kinked pilot line
6. C o n t r o l v a l v e i s n o t
opening
7. No power to unit or the
ignition module or power
transformer is bad
REMEDY
1. Check to see if you have gas
supply and that equipment
shutoff valve is opened
2. Repeat lighting procedure
several times to purge all air
out of lines. If after repeated
attempts appliance does
not light, call for qualified
service and repair
3. Remove debris and dirt,
inspect and clean any other
possible obstructions
4. Contact your gas supplier to
check pressure
5. Have a qualified technician
replace pilot line
6. Replace control valve (Re-
fer to Replacement Parts,
page 24)
7. Check that main power is
on and that all wire con-
nections are made correctly
to the ignition model (see
Wiring Diagram, page 21).
Check for 24 VAC at the
secondary side of the trans-
former. If 24 VAC is present
and the module does not
operate, have the module
replaced otherwise have
the transformer replaced
OBSERVED PROBLEM
Ignitor will not spark or pilot
will not light