Wall Mounted Unit (Idu & Odu) Error Code Diagnosis And Solution - Bosch Climate 5000 Series Service Manual

Service Manual
7.6 Wall Mounted Unit (IDU & ODU) Error Code Diagnosis and Solution
Running Lamp Timer Lamp
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-- --
-- --
-- --
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1 time OFF
2 times OFF
3 times OFF
4 times OFF
5 times OFF
5 times OFF
5 times OFF
5 times OFF
5 times OFF
6 times OFF
6 times OFF
12 times OFF
9 times OFF
8 times OFF
7 times FLASH
2 times FLASH
3 times FLASH
5 times FLASH
1 time FLASH
6 times FLASH
7 times FLASH
1 times ON
Table 20
4 2 |
Display Information
dF Defrost
CL Filter cleaning reminder(power on display for 15 seconds)
CL Active clean
F Filter replacement reminder(power on display for 15 seconds)
FP Heating in room temperature under 8°C
FC Forced cooling
AP AP mode of WIFI connection
CP Remote switched off
EH 00/EH 0A Indoor unit EEPROM parameter error
EL 01 Indoor/outdoor unit communication error
EH 02 Zero-crossing signal detection error
EH 03 The indoor fan speed is operating outside of the normal range
EC 51 Outdoor unit EEPROM parameter error
EC 52 Condenser coil temperature sensor T3 is in open circuit or has short circuited
EC 53 Outdoor room temperature sensor T4 is in open circuit or has short circuited
EC 54 Compressor discharge temperature sensor TP is in open circuit or has short circuited
Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited
EC 56
(for free-match indoor units)
EH 60 Indoor room temperature sensor T1 is in open circuit or has short circuited
EH 61 Evaporator coil middle temperature sensor T2 is in open circuit or has short circuited
EC 07 The outdoor fan speed is operating outside of the normal range
EH b0 Indoor PCB/Display board communication error
EL 0C Refrigerant leakage detection
PC 00 IPM malfunction or IGBT over-strong current protection
PC 01 Over voltage or over low voltage protection
Top temperature protection of compressor or High temperature protection of IPM
PC 02
module or High pressure protection
PC 04 Inverter compressor drive error
PC 08 Current overload protection
"Communication error between outdoor main chip and compressor
PC 40
driven chip"
PC 03 Low pressure protection
-- Indoor units mode confl ict(match with multi outdoor unit)
Bosch Wall Mounted Ductless Split Air Conditioner / Heat Pump IDU-ODU - BTC 769102301 A (11.2022)
Solution
Normal Display,
not error code
TS01-IDU
TS02-S-INV
TS03
TS04-S-IDU
TS01-ODU
TS05-ODU
TS05-ODU
TS05-ODU
TS05-ODU
TS05-IDU
TS05-IDU
TS04-ODU
TS07
TS06-INV
TS09-S
TS10-S
TS11-S-INV
TS12-S
TS08-S
TS33
TS13-INV
TS14