Troubleshooting - Daikin EWWQ-KC Operating Manual

Alarm Type HMI Code Mapping Alarm
Cir1Off NoPrChgAtStrt
Circuit 1 C102
Cir1Off LowEvPr
C105
Cir1Off HiDischTemp
C107
Cir1Off EvapPSenf
C110
Cir1Off DischTempSenf
C114
Cir1Off Compressor Alarm Disconnected contact between
C122
Cir2Off NoPrChgAtStrt
Circuit 2 C202
Cir2Off LowEvPr
C205
Cir2Off HiDischTemp
C207
Cir2Off EvapPSenf
C210
Cir2Off DischTempSenf
C214
Cir2Off Compressor Alarm Disconnected contact between
C222
In the HMI Web Interface, this information is available in the paths:
→
→
Main Menu Alarms Alarm List
4.2.

Troubleshooting

If one of the following malfunctions occur, take the measures shown below and contact your dealer.
WARNING Stop operation and shut off the power if anything unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may cause breakage, electric shock or fire. Contact
your dealer.
The system must be repaired by a qualified service person:
Malfunction
If a safety device such as a fuse, a breaker or an earth leakage
breaker frequently actuates, or the ON/OFF switch does not properly
work.
If water leaks from the unit.
The operation switch does not work well.
If the operation lamp flashes and the malfunction code appears on the
user interface display.
If the system does not properly operate except for the abovementioned cases and none of the abovementioned malfunctions is
evident, investigate the system according to the following procedures.
Malfunction
The remote controller display is off.
An error code is displayed on the remote controller.
Cause
No pressure delta detected by UC
Evaporating pressure under
minimum limit
Discharge temperature over
maximum limit
Pressure sensor not detected
Temperature sensor not detected
compressor and power supply
No pressure delta detected by UC
Evaporating pressure under
minimum limit
Discharge temperature over
maximum limit
Pressure sensor not detected
Temperature sensor not detected
compressor and power supply
Measure
Turn off the main power switch.
Stop the operation.
Turn off the power.
Notify your installer and report the malfunction code.
Measure
• Check if there is no power failure. Wait until power is restored. If
power failure occurs during operation, the system automatically
restarts immediately after power is restored.
• Check if no fuse has blown or breaker is activated. Change the fuse
or reset the breaker if necessary.
• Check if the benefit kWh rate power supply is active.
Consult your local dealer. Refer to "4.1 Alarm List: Overview" for a
detailed list of error codes.
Solution
▪
Contact your local dealer
▪
Contact your local dealer
▪
Contact your local dealer
▪
Check sensor wiring connection
▪
Contact your local dealer
▪
Check sensor wiring connection
▪
Contact your local dealer
▪
Check the thermal switch
▪
Check the high pressure switch
▪
Contact your local dealer
▪
Contact your local dealer
▪
Contact your local dealer
▪
Check sensor wiring connection
▪
Contact your local dealer
▪
Check sensor wiring connection
▪
Contact your local dealer
▪
Check the thermal switch
▪
Check the high pressure switch
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