Trane A801X026AM2SC Installation, Operation And Maintenance Manual page 61

DEFINITION:
Igniter Relay Fault – The control board has sensed
that the igniter relay has stuck closed
igniter Fault – The control board has sensed that
the igniter circuit is open or shorted.
A801X-SVX001-1A-EN
Igniter is good
Replace IFC, igniter relay has failed
Replace igniter.
Check opera on
6.3 Fault Code
Make a call for
st
1 stage hea ng
Does igniter
YES
glow?
NO
Is 120 VAC
measured between
IGN-H and IGN-N?
YES
Verify igniter harness is
not damaged and
connectors are ght
Disconnect electrical
power to the furnace
Disconnect igniter
and check resistance
Is resistance
reading between 37
NO
– 70 ohms?
(at ~75F)
YES
Igniter is good
T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
Replace IFC, igniter
NO
relay has failed
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