Trane S8V2A040M3PC Installation, Operation And Maintenance Manual page 66

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
DEFINITION
Limit switches are safety devices
that will open when an abnormal
high temperature has been sensed.
REMOVE ALL JUMPER WIRING TO
SWITCHES!
Under no circumstances, shall these
switches be le jumpered when not
troubleshoo ng.
Verify filters and blower wheels are
clean
66
4.1 Fault Code
Open Reverse Air Flow Limit
Does motor
con nue to run
during the en re
hea ng cycle?
YES
Is temperature at
reverse flow switch
above
specifica ons?
YES
Increase blower
off delay
Verify motor harness
NO
wiring for any loose
connec ons
NO
Replace reverse
air flow limit
S8V2-SVX001-1A-EN