
Troubleshooting
Step 2 Components
Troubleshooting
Step 2 Components
Ignition Cable-Check for continuity
through lower ignition cable
Lower Ignition Module
--
Diagnostic LED
Flash indication will occur once immediately after the
failure.
2 flashes = Have flame, but no call from heat across TH &
GND
3 flashes = Ignition Lockout ( only after 3 unsuccessful
attempts to ignite and sense flame).
15 second ignition attempt
5 second inter purge
Sparking will stop if flame sense measures above 0.7 micro
amps.
Power -
24 VAC across TH & GND
from controller
Input Voltage Check Output Voltage Check
24 VAC across V1 & V2 to lower
gas valve
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