Zodiac Z250 MD3 Instructions For Installation And Use Manual page 53

Er06
Low pressure protection
If this error occurs 3 times in 30 minutes,
unplug the pump to clear the error.
Er09
Connection errorbetween PCB and wired
remote control
Er010
Connection error between PCB and
inverter module
Er11
Temperature difference too high between
inlet and outlet water temperature
If this error occurs 3 times in 30 minutes,
unplug the pump to clear the error.
Er12
Vented air temperature too high
Er13
Ambient temp protection
Er14
Water temperature at outlet too low for
cooling mode
Er15
Water intake temperature sensor
malfunction
Er16
Outside coil temperature error
Er18
Vented temperature error
If this error occurs 3 times in 30 minutes,
unplug the pump to clear the error.
Er20
Inverter module protection
Er21
Ambient temperature error
Insufficient refrigerant gas
Defective 4-way valve
Low pressure switch disconnected or
defective
Bad connection
Defective wired remote control
Defective PCB
Bad connection
Defective invertor module
Defective main PCB
Insufficient water flow
Insufficient refrigerant gas
The ambient temp is beyond the unit
working temp range
The sensor is abnormal or too close to
the heat exchanger surface
Insufficient water flow
Sensor disconnected or defective
Sensor disconnected or defective
Sensor disconnected or defective
Defective inverter module
Defective compressor
Sensor disconnected or defective
Check and readjust the
refrigerant volume
Replace the 4-way valve
Reconnect or replace low
pressure switch
Check wiring connections
between remote control and PCB
Replace remote control
Replace PCB
Check wiring connections
between PCB and inverter module
Replace inverter module
Replace PCB
The error code will disappear after
3 minutes and the unit will start
working again.
Check and readjust the
refrigerant volume
Unit stops working (please wait)
Change the position for ambient
temp sensor to right position
Check water pump operation
and openings of by-pass inlet/outlet
valves
Reconnect or replace sensor
Reconnect or replace sensor
Reconnect or replace sensor
Replace inverter module
Replace the compressor
Reconnect or replace sensor
EN
22