Trane S9V2D120U5PSBC/D - 01 Fault Code

S9V2-SVX001-1A-EN
103
Is the IFC Seven
Segment LED on?
What is the fault
code? See FAULT
LED Codes page
Go to L6F
(Last 6 Faults)
YES
GETTING STARTED
Is 120 VAC
measured at
transformer?
NO
Is 120 VAC measured
between Line and
Neutral at the IFC?
NO
Is 120 VAC
measured between
Line and Neutral at
J-box?
NO
Verify Panel Loop is
connected
YES
Repair hi voltage
NO
Is 24 VAC
measured at
transformer?
YES
Replace XfmrNO
YES
Is 24 VAC
measured at TH
and TR at IFC?
Repair wiringNO
Replace IFC
YES
YES
01 Fault Code
DEFINITION:
Internal failure of the control board
Replace IFC
TTrroouubblleesshhoooottiinngg