Zodiac Z250 MD3 Instructions For Installation And Use Manual page 54

Er27
Water outlet sensor error
Er29
Backed temperature sensor error
Er33
Outlet temperature too high for heating
mode protection
Er34
Fan motor error
If this error occurs continuously 6 times,
unplug the pump to clear the error.
When the error occurs, the unit tries to
restart the fan every 10s and decides if the
fan is normal after 20s of operation.
Er40
Out of phase protection
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er41
Compressor current protection
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er45
Drive PCB ambient temp. thermo-bulb
error
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er46
Input power abnormal error
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er47
Excessive input current protection
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er48
IPM thermo-bulb error
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er49
PFC module protection
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
Er50
PFC thermo-bulb error
(unit stops working)
If this error occurs 6 times in 60 minutes,
unplug the pump to clear the error.
23
Sensor disconnected or defective
Sensor disconnected or defective
Insuffcient water flow
Defective fan motor
Defective PCB
Defective fan blade or blocked
Abnormal driving control
Abnormal driving control
Abnormal driving control
Abnormal driving control
Abnormal driving control
Abnormal driving control
Abnormal driving control
Abnormal driving control
Reconnect or replace sensor
Reconnect or replace sensor
Check if the water circulation for the
heat pump is normal
Replace fan motor
Replace the PCB
Clean the fan blade or replace a
new one
Check if the compressor is
connected properly
Replace drive PCB
Check if the refrigerant is
sufficient and the vacuum of the
system if sufficient
Replace drive PCB
Replace compressor
Replace drive PCB
Check if the input voltage is
normal
Replace drive PCB
Check if the refrigerant is
sufficient and the vacuum of the
system if sufficient
Replace drive PCB
Replace compressor
Replace drive PCB
Replace drive PCB
Replace compressor
Replace drive PCB