24K~48K Models - Bosch Climate 5000 Series Installation Instructions Manual

12.3.2 24k~48k models

Number Display* Error Information
1 EH 00/EH 0A Indoor unit EEPROM parameter error
2 EL 01 Indoor / outdoor unit communication error
3 EH 03 The indoor fan speed is operating outside of the normal range(for some models)
4 EH 60 Indoor room temperature sensor T1 is in open circuit or has short circuited
5 EH 61 Evaporator coil temperature sensor T2 is in open circuit or has short circuited
6 EL 0C Refrigerant Leakage Detection(for some models)
7 EH 0E Water-level alarm malfunction
8 EC 53 Outdoor room temperature sensor T4 is in open circuit or has short circuited
9 EC 52 Condenser coil temperature sensor T3 is in open circuit or has short circuited
10 EC 54 Compressor discharge temperature sensor TP is in open circuit or has short circuited
11 EC 56 Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited(for free-match indoor units)
12 EC 51 Outdoor unit EEPROM parameter error
13 EC 07 The outdoor fan speed is operating outside of the normal range(for some models)
14 PC 00 IPM malfunction or IGBT over-strong current protection
15 PC 01 Over voltage or over low voltage protection
16 PC 02 Top temperature protection of compressor or High temperature protection of IPM module
17 PC 04 Inverter compressor drive error
18 PC 03 High pressure protection or low pressure protection (for some models)
19 EC 0d Outdoor unit malfunction
20 -- Indoor units mode confl ict(match with multi outdoor unit)
Table 12
* The error codes are four digits, displayed two at a time on the LED.
For troubleshooting, please refer to the services manual.
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Installation Instructions
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