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Polarity Fault – Incoming high voltage
wiring is reversed
Reverse 120 vac
power leads to
furnace wiring
Reconnect power
Check opera on
S9V2-VS-SVX001-1C-EN
06 Fault Code
Reversed Polarity
Ensure that high voltage wiring
to unit is connected properly
YES
Disconnect incoming
electrical power to
furnace
Connect volt meter
to white incoming
neutral wire and
green earth ground
Is ~120 VAC
read?
NO
Does meter read
more than 50
YES
vac?
NO
Replace IFC
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.
103
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