P1 error:
#
Check the supply voltage to the outdoor unit.
Is it within 160 to 270 Volts?
Note:
If the voltage is below 200 Volts, this can reduce the condenser fan speed, thus reducing the unit’s
efficiency.
If the voltage is within its voltage limits:
# Check the AC voltage from the active spade terminal to the CN4 soldered wiring point on the outdoor
main PCB.
# Check the AC voltage from the Neutral spade terminal to the CN5 soldered wiring point on the
outdoor main PCB.
Note:
if the supply AC voltage is available at both the CN4 and CN5 points & P1 fault still appears,
replace the main outdoor PCB assembly.
Active wiring connection point on main outdoor
terminal block.
“CN4” point on outdoor main PCB.
Neutral wiring connection point on main
outdoor terminal block.
“CN5” point on outdoor main PCB
Page 25 KSSSI90
