Zodiac iAquaLink CONTROL Z550iQ Notice D'installation Et D'utilisation page 58

Display
E16 / E17
Error on the fan motor
E18* followed by a number
Driver trip
E19
Driver - compressor
communication fault
E20
Main board not configured
INIt
Protection during first start-
up
*If error E14, E15 or E18 occurs, a minimum waiting time of at least 3 minutes must be respected before the error can
be cleared, even if the error-generating conditions are no longer present.
For example, in the event of a power cut to the compressor while in operation, the appliance will display error E18 for
3 minutes after power has been restored.
E18 followed by a number - driver trip
Display sequence « E18 » / « # »
: Actions to be performed by a qualified technician only
# Description
Communication fault with
4
master controller
14 Out-of-speed fault
Compressor and PFC key
22 data fault (can not be
cleared
MCU FLASH verification
27
fault (can not be cleared)
3 = PFC Over Current
3 / 9 OR
9 = Power overloading
13 Start up Failure
12 Motor position Loss
24
Possible causes
Fan motor disconnected
Fan motor damaged
See E18 table below
Bad connection between
the A1 and A4 boards
Board power supply fault
Faulty boards
Board settings
False start of the
compressor (only on first
time start-up)
Possible causes
Driver is damaged
The Input current is over Limit
Driver is damaged
Compressor load is too high
Compressor is damaged
Compressor cable disconnected
or is not connected properly
Possible solutions
Check the fan motor connector. If the problem
persists, call a qualified technician
Replace the fan motor
Check that the CONIN (A1 board) and AB (A4 driver
board) connectors are correctly connected
Check the boards' power supply by visual inspection
and/or with a multimeter if necessary
Replace the A1 (regulation board) and A4
(compressor driver) boards
Enter the appliance model in the settings
Wait 3 minutes then the unit will start automatically
Possible solutions
Replace the driver board
Compressor load too high:
- No flow in the heat exchanger: Close by
pass valve if it is open too much
- Evaporator obstructed: Clean it with clear
water
- Expansion valve malfunction: check if
temperatures are normal (ST1 to ST5)
Replace the driver board
Power OFF and then power ON the unit
Measure the winding values
Check wiring of the compressor's phases