MTU 16V4000L32FNER Operating Instructions Manual page 110

1.4530.013 – Analog Input Low Error
Yellow alarm. Initiated by compressor bypass.
Cause
Compressor bypass setting is not
correct.
1.4530.014 – Input Supply Voltage High Error
Yellow alarm. Initiated by compressor bypass.
Cause
Supply voltage has reached
maximum limit value.
1.4530.015 – Input Supply Voltage Low Error
Yellow alarm. Initiated by compressor bypass.
Cause
Supply voltage has reached
minimum limit value.
1.4530.016 – Electronics Temperature High Error
Red alarm. Initiated by compressor bypass.
Cause
Temperature of the electronics
above 140 ºC or internal
temperature sensor faulty.
1.4530.017 – Electronics Temperature Low Error
Red alarm. Initiated by compressor bypass.
Cause
Temperature of the electronics
below -45 ºC or internal
temperature sensor faulty.
1.4530.018 – Position Error
Red alarm. Initiated by compressor bypass.
Cause
Position specification and
feedback signal do not match .
110 | Troubleshooting | MS150121/02E 2017-09
Corrective action
u Check compressor bypass flap setting.
Corrective action
1. Check supply voltage.
2. Check cabling (→ Page 202).
Corrective action
1. Check supply voltage.
2. Check cabling (→ Page 202).
Corrective action
1. Check room temperature and ventilation.
2. Compare device temperature with temperature gauge in Service
tool.
3. Replace compressor bypass flap.
Corrective action
1. Check room temperature and ventilation.
2. Compare device temperature with temperature gauge in Service
tool.
3. Replace compressor bypass flap.
Corrective action
1. Check mechanical system.
2. Restart compressor bypass flap.