background image

10

Status / Error message

Possible cause 

Correction 

A21

 

Excess current inverter

Excess current caused by undervoltage. Insufficient power supply.  Cause is probably excessively long cable, overloading or an insuffi- ciently high power generator output.

Improve power supply or activate ECO mode.

A22

 

Excess temperature inverter

Ambient temperature too high or insufficient cooling.

Check whether the air vents in the electrical box are blocked.  Remove dust deposits from the heat sink. The max. ambient temper- ature must not exceed 60 °C.

A23 

 

Excess temperature com- pressor 1

Incorrect temperature measurement.

Please contact your authorised Webasto Marine dealer.

Compressor switches off in cooling mode, maximum compressor  temperature reached. Sea water cooling insufficient. Sea water  strainer soiled or no flow. Sea water pump defective. Refrigerant cir- cuit blocked.

Remove blockage at sea water inlet. The minimum flow rates must  be complied with. Clean sea water strainer and bleed sea water cir- cuit. Operate unit for 5 minutes in heating mode (if possible) then  switch to cooling mode and check whether the fault occurs again.  Please contact your authorised Webasto Marine dealer.

A24

 

High pressure sensor

Pressure sensor defective or power circuit interruption/short circuit.

Please contact your authorised Webasto Marine dealer.

A25

 

Low pressure sensor

Pressure sensor defective or power circuit interruption/short circuit.

A26

 

Compressor temperature  sensor

Compressor temperature sensor defective or break/short-circuit in  electrical circuit.

A27

 

Data communication in- verter

No data communication between inverter and pc-board.

A28

 

Characteristic diagram

Compressor operation outside characteristic map. Incorrect pressure  sensor measurement.

Compressor operates outside the characteristic diagram in cooling  mode, maximum pressure reached. Insufficient sea water cooling.  Sea water strainer soiled or no flow. Sea water pump defective;  refrigerant circuit blocked.

Remove blockage at sea water inlet. The minimum flow rates must  be complied with. Clean sea water strainer and bleed sea water cir- cuit. Operate the unit for 5 minutes in heating mode (if possible)  then switch to cooling mode and check whether the fault occurs  again. Please contact your authorised Webasto Marine dealer.

Compressor operates outside the characteristic diagram in heating  mode, maximum pressure reached. Cold water pump defective. Plate  heat exchanger or cold water circuit blocked. Refrigerant circuit  blocked.

Check cold water flow rate and increase if necessary. Difference  between evaporator inlet/outlet temperature approx. 5 K. Operate  chiller unit for 5 minutes in cooling mode (if possible) then switch to  heating mode and check whether the fault occurs again. Please con- tact your authorised Webasto Marine dealer.

A30

 

Excess temperature inverter

The permissible temperature in the inverter housing is exceeded.

Check whether the air vents in the electrical box are blocked.  Remove dust deposits from the heat sink. If possible, reduce the  max. ambient temperature to below 60 °C.

Содержание BlueCool V50 M

Страница 1: ...Water Marine Air Conditioning Systems BlueCool V Series EN Valid for BlueCool V50 M as of change index C 2017 Typ V50 M WBCL1203001C Valid for BlueCool V77 T V64 T as of change index B 2017 Typ V64 T...

Страница 2: ...undings Highlight Explanation 3 3 Requirements for the fol lowing necessary action X X Necessary action 1 4 Warranty and liability Webasto shall not assume liability for defects or damage that are the...

Страница 3: ...touch sensitivity of the screen is optimised to direct contact with the fingers The screen may not respond to touch if gloves are worn Tapping outside the touch sen sitive area at the edge of the scre...

Страница 4: ...reen provide infor mation on the system status The symbols are explained in the table Symbol Meaning 1 On Off 2 Temperature 3 Fan 4 Settings 6 Notification 7 Increase values 8 Decrease values 9 AUTO A...

Страница 5: ...n the set setpoint temperature and the room temperature measured by the cabin temperature sensor Note The system only cools under the following conditions cabin tem perature 15 C Setpoint tem perature...

Страница 6: ...c changeover between cooling and heating 9 System settings The operating logic is explained based on the Timer function The explanation also applies to other setting levels or functions Fig 6 1 3 Time...

Страница 7: ...1 6 Standby Sets the BlueCool MyTouch display to standby mode The available functions are Webasto Logo Shows the Webasto logo Customer logo Shows an individual file that can be loa ded onto BlueCool M...

Страница 8: ...our authorised Webasto Marine dealer A01 Low pressure compressor 1 Incorrect pressure sensor measurement Please contact your authorised Webasto Marine dealer Compressor switches off in heating mode se...

Страница 9: ...Please contact your authorised Webasto Marine dealer A10 Cold water temperature sensor Cold water temperature sensor defective or break short circuit in electrical circuit A15 Cold water flow The flo...

Страница 10: ...mpressor temperature sensor Compressor temperature sensor defective or break short circuit in electrical circuit A27 Data communication in verter No data communication between inverter and pc board A2...

Страница 11: ...s at too high a load A39 Cable bridge inverter Compressor 1 switched off because the input is not bypassed open Cable not connected Function of external relay 24V voltage not applied A40 Compressor 1...

Страница 12: ...ulation blocked Secure adequate air or water flow see A01 and or A02 Refrigerant shortage Please contact your authorised Webasto Marine dealer Oil block Refrigerant circuit blocked Filter or expansion...

Страница 13: ...n the Webasto service centre leaflet or the website of the respective Webasto representative of your country Ident No WBCL010825E 08 18 Errors and omissions excepted Webasto Thermo Comfort SE 2017 Web...

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