Trane S8V2A040M3PC Installation, Operation And Maintenance Manual page 69

:
DEFINI
Polarity Fault – Incoming high voltage
wiring is reversed
Reverse 120 vac
power leads to
furnace wiring
Reconnect power
Check opera on
:
Ground Fault - Incoming or chassis
ground connec on is not sensed
Correct earth
ground.
Check opera on
S8V2-SVX001-1A-EN
6.1 Fault Code
Connect volt meter
to white incoming
neutral wire and
green earth ground
Disconnect incoming
Does meter read
electrical power to YES
furnace
6.2 Fault Code
Disconnect incoming
electrical power to NO
furnace
Disconnect incoming
NO
~120 vac?
Connect volt meter
to black incoming
and chassis ground
at burner box
Does meter read
~120 vac?
YES
electrical power to
furnace
Check / correct all
ground connec ons
within furnace for
con nuity
Check opera on
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
Correct neutral and ground
problem. Furnace must be on a
dedicated circuit.
69