Bosch Climate 7000i Notice D'installation page 68

Troubleshooting
You cannot use the remote controller to turn on the COOL function when
the ambient temperature is below 16°C. For that, use the MANUAL
CONTROL button to test the COOL function:
▶ Lift the front panel of the indoor unit, and raise it until it clicks in
place.
▶ The MANUAL CONTROL button is located on the right-hand side of
the display box. Press it once to manually start in AUTO mode. Press
it twice to activate the FORCED COOLING function.
▶ Perform the test run.
To switch on the cooling mode manually:
▶ Switch off the indoor unit.
▶ Press the key for the manual cooling mode twice with a thin object
( Fig. 24).
▶ Press the
key on the remote control to exit cooling mode when it
has been set manually.
In a system with multi-split air conditioner, manual operation is not
possible.
1 Outdoor unit and indoor unit are correctly installed.
2 Pipes are correctly
• connected,
• thermally insulated,
• and checked for tightness.
3 Condensate pipes are functioning correctly and
have been tested.
4 Electrical connection has been correctly
established.
• Power supply is in the normal range
• Protective conductor is properly attached
• Connection cable is securely attached to the
terminal strip
Fault code Possible Cause
EC 07 Fan speed of outdoor unit outside the normal range
EC 51 Faulty parameter in the EEPROM of the outdoor unit
EC 52 Temperature sensor error at T3 (condenser coil)
EC 53 Temperature sensor error at T4 (outside temperature)
EC 54 Temperature sensor error at TP (compressor discharge pipe)
EC 56 Temperature sensor error at T2B (outlet of evaporator coil; only multi-split air conditioner)
EH 0A Faulty parameter in the EEPROM of the indoor unit
EH 00
EH 0b Communication error between main PCB of indoor unit and display
EH 03 Fan speed of indoor unit outside the normal range
EH 60 Temperature sensor error at T1 (room temperature)
EH 61 Temperature sensor error at T2 (centre of evaporator coil)
1)
EL 0C Insufficient or escaping refrigerant or temperature sensor error at T2
68
5 All covers are fitted and secured.
6 The horizontal louvre of the indoor unit is fitted
correctly and the actuator is engaged.
Table 12 Checklist
4.2 Handover to the user
▶ 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.
5 Troubleshooting
5.1 Faults with indication
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.
If a fault occurs during operation, a fault code appears in the display
(e.g. EH 03).
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.
Climate 7000i – 6721873506 (2024/04)