Trane S9V2B040U3VSAE Installation, Operation And Maintenance Manual page 113
Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, 2-stage condensing variable speed furnaces with variable speed draft inducer, upflow, convertible to horizontal right or horizontal left/downflow only
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DEFINITION:
This fault is generated when the IFC
does not see a send message itelf.
S9V2-VS-SVX001-1B-EN
18 Fault Code
With power on,
remove the 4 pin
motor connector from
the IFC
Does the error code
YES
change to E17?
NO
Replace IFC
Serial Motor
Troublesho ng
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
Verify harness and
See addi onal motor
wiring connec ons.
troubleshoo ng
113
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