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Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units Service Manual
08.2020 | Bosch Thermotechnology Corp.Data subject to change
8.6 Diagnosis and Solution
8.6.1 EEPROM parameter error (E0)
Error Code E0
Malfunction decision conditions Outdoor PCB main chip does not receive feedback from EEPROM chip.
Supposed causes
f Incorrect installation of indoor to outdoor control wire or line voltage wiring
f PCB faulty
Table 19
Troubleshooting:
Figure 39
If error continues
Power off, then restart the
unit 2 minutes later.
Replace the outdoor
main PCB.
EEPROM: a read-only memory whose contents can be erased and reprogrammed
using a pulsed voltage. For the location of EEPROM chip, please refer to
the below photos.
Figure 40
The photo above is for reference only, it may not be identical to the
PCB shipped with your equipment.