Product Manual

Form #43471010
-30- Mar 09
30 seconds after startup, does the amber monitoring light come on?
Yes
No
while the amber light is on, through the inspection window, is there a flame visible?
Yes
No
Is the knob on the gas valve in the ON position? (Its shipped from the factory at OFF position)
Yes
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 stay on until call for heat ends?
Yes
No
Repair connection.
Troubleshooting 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?
Restart troubleshooting.
Yes
No
Turn the knob to ON position.
No
30 seconds after startup, check the voltage across valve terminals on ignition module. Is it 24 vac?
No
Yes
Move the white wire to the transformer terminal.
Is the fuse OK on ignition module?
Yes
No
Replace the fuse.
Yes
Is there a spark across igniter/sensor gap?
Yes
No
Is the ground wiring between the ignition module and the control box OK?
No
Yes
Adjust the electrode tip into the flame.
Is the ceramic insulator OK on the spark electrode?
No
Yes
Replace the spark electrode.
Is the spark gap 3/16?
No
Yes
Adjust the spark gap to 3/16.
Replace the ignition module & ignition cable.
Spark stops when burner is lit?
Yes
No
Is the electrode tip directly in the flame?
No
Yes
Replace the spark electrode.
Is there continuity between electrode sensor and ground stud in the cabinet?
No
Replace the spark electrode.
Troubleshooting continued from the previous page.
Fix the grounding problem.
Replace the ignition module.
Yes
No
Is the white wire from ignition module 25V(GND) hooked to transformer?
Yes
No
Yes
Check the flame current at the ignition module. Is it over 1.5mA with flame?
No
Yes
Replace ignition module.
See next page for troubleshooting sequence.
Restart troubleshooting.