Form 43471000
-30-
Sept 2011
30 seconds af
ter
st
artup, does the
amber monitoring light come on?
Y
es
No
while the amber light is on, through the inspection window
, is
there a flame visible?
Y
es
No
Is the knob on the gas valve in the ON position? (It
s shipped
from the factory at OFF position)
Y
es
No
Is there 24 vac across 25V(GND) and 25V terminals on ignition module?
Replace the amber light.
Are the two wires to the amber light securely hooked to the terminals of the gas valve?
Does the amber light st
ay on until call for
heat ends?
Y
es
No
Rep
air connection.
T
roubleshooting
continued on the next page.
Move the red wire to air switch terminal NO.
Is the red wire from ignition module 25V terminal hooked to air switch terminal NO?
Rest
art
troubleshooting.
Y
es
No
T
urn the knob to ON
position.
No
30 seconds af
ter
st
artup, check the
volt
age across valve
terminals on ignition module. Is it 24 vac?
No
Y
es
Move the white wire to the transformer terminal.
Is the fuse OK on ignition module?
Y
es
No
Replace the fuse.
Y
es
Is there a sp
ark
across igniter/sensor gap?
Y
es
No
Is the ground wiring between the ignition module and the control box OK?
No
Y
es
Adjust the electrode tip into the flame.
Is the ceramic insulator OK on the sp
ark electrode?
No
Y
es
Replace the sp
ark
electrode.
Is the sp
ark gap
3/16?
No
Y
es
Adjust the sp
ark gap
to 3/16.
Replace the ignition module & ignition cable.
S
park stop
s when
burner is lit?
Y
es
No
Is the electrode tip directly in the flame?
No
Y
es
Replace the sp
ark
electrode.
Is there continuity between electrode sensor and ground stud in the cabinet?
No
Replace the sp
ark
electrode.
T
roubleshooting
continued from the previous p
age.
Fix the grounding problem.
Replace the ignition module.
Y
es
No
Is the white wire from ignition module 25V(GND) hooked to transformer?
Y
es
No
Y
es
Check the flame current at the ignition module. Is it over 1.5
m
A
with flame?
No
Y
es
Replace ignition module.
See next p
age for
troubleshooting sequence.
Rest
art
troubleshooting.
