Function Check - Bosch Climate 5000 L Manual

Troubleshooting
5.2

Function check

The system can be tested once the installation including tightness test
has been carried out and the electrical connection has been established:
▶ Connect the power supply.
▶ Switch on indoor unit with the remote control.
▶ Switch on cooling mode and set the lowest temperature.
▶ Test cooling mode for 5 minutes.
▶ Switch on heating mode and set the highest temperature.
▶ Test heating mode for 5 minutes.
Observe the operating instructions provided for operation of the indoor
units.
6 Troubleshooting
6.1 Faults with indication (Self diagnosis function)
WARNING
Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.
▶ Before working on electrical parts, disconnect all phases of the
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
4C Indoor Unit
Fault code Content
EH 00/EH 0A Indoor unit EEPROM fault
EL 01 Communication fault between outdoor and indoor unit
EH 03 Indoor unit fan outside the normal range (with some units)
EH 60 Temperature sensor T1 (room temperature sensor) switched off or short-circuited
EH 61 Temperature sensor T2 (pipe temperature sensor) switched off or short-circuited
EL 0C Refrigerant leakage detector (with some units)
EH 0b Communication fault of the indoor unit main board
EH 0E Malfunction of the water level alarm
EC 53 Temperature sensor T4 (outside temperature) switched off or short-circuited
EC 52 Temperature sensor T3 (pipe temperature sensor) switched off or short-circuited
EC 54 Temperature sensor TP (compressor discharge temperature protection) switched off or short-circuited
EC 56 Temperature sensor T2B (pipe temperature) switched off or short-circuited
EC 51 Outdoor unit EEPROM fault
EC 07 Outdoor unit fan outside the normal range (with some units)
PC 00 IPM malfunction or IGBT overvoltage protector
PC 01 Overvoltage or low-voltage protection
PC 02 Maximum temperature protection of compressor or high temperature protection of IPM module
PC 04 Compressor control system failure of inverter
PC 03 High or low-pressure protection (with some units)
EC 0d Malfunction of outdoor unit
Table 14 Fault codes of type 4C indoor unit
4CC Indoor Unit
Content
Indoor unit EEPROM fault
Communication fault between outdoor and
indoor unit
Indoor unit fan outside the normal range
(with some units)
56
5.3
▶ When the system has been set up, hand over the installation manual
to the customer.
▶ Explain to the customer how to use the system, referring to the
operation manual.
▶ Advise the customer to carefully read the operation manual.
If a fault occurs during operation, the LEDs flash for an extended period
or an error code is displayed (e.g. EH 02).
If a fault is present for more than 10 minutes:
▶ Briefly interrupt the power supply and switch the indoor unit back on.
If a fault persists:
▶ Call customer service and provide the fault code and details of the
appliance.
Timer lamp
OFF
OFF
OFF
Handover to the user
Operation lamp (flashes)
1
2
4
Climate 5000 L • Climate 5000iL – 6721841494 (2022/05)