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117437-01D 29
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
valve is OFF
2. Air in gas line
3. Construction debris clog-
4. Low gas pressure
5. Kinked pilot line
6. Control valve is not open-
ing
7. No power to unit or the
ignition module
1. Loose wiring on ignitor wire
to ignition module and/
or poor ground to ignition
module
2. Pilot flame too low to
sense
to sense flame causing
ignition module to shut
down
2.
Improper or restricted
venting
OBSERVED PROBLEM
Electronic Ignition Models
Only Ignitor will not spark or
pilot will not light
Electronic Ignition Models
Only Pilot will not stay lit
Electronic Ignition Models
Only Frequent outage of main
burner and pilot after complete
ignition sequence
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
service and repair
inspect and clean any other
possible obstructions
4. Contact your gas supplier
to check pressure
replace pilot line
6. Replace control valve (Re-
fer to Replacement Parts
page 31)
7. Check that main power is
on and that wire connec-
tions are made correctly
to the ignition model (see
Wiring Diagrams
Check for 24 VAC at the
secondary side of the trans-
and the module does not
replaced otherwise have
the transformer replaced
1.
Check wiring connection.
Refer to wiring diagram (see
Wiring Diagrams
and/or check ground wire to
ignition module
2.
and check gas supply and
inlet pressure to unit. Note:
replace pilot assembly if
broken or corroded
sensor rod
2. Locate and correct all vent
conditions (see Checking for
Proper Venting