![Atlas Copco GA 37 VSD Instruction Book Download Page 116](http://html.mh-extra.com/html/atlas-copco/ga-37-vsd/ga-37-vsd_instruction-book_3001661116.webp)
Fault
code
Text on
converter
display
Cause
Actions
21
O.ht1
Converter overheating (IGBT)
Check the ambient temperature.
Check the cubicle cooling.
Contact Atlas Copco.
22
O.ht2
Converter overheating (heat sink)
Check the ambient temperature.
Check the cubicle cooling.
Contact Atlas Copco.
24
th
Motor overheating (thermistor)
Check the ambient temperature.
Clean the motor cooling fins.
Contact Atlas Copco.
27
O.ht3
Converter overheating (thermal model) Check the ambient temperature.
Check the cubicle cooling.
Contact Atlas Copco.
32
PH
High input voltage phase imbalance or
input phase loss
Check supply phases.
Contact Atlas Copco.
102
O.ht4
Converter overheating (Power module) Check the ambient temperature.
Check the cubicle cooling.
Contact Atlas Copco.
(blank)
(blank)
Various
Contact Atlas Copco.
Instruction book
114
API480496
Summary of Contents for GA 37 VSD
Page 1: ...INSTRUCTION BOOK API480496 GA 37 VSD ...
Page 2: ......
Page 14: ...Front view GA 37 VSD up to GA 45 VSD Workplace Full Feature Instruction book 12 API480496 ...
Page 127: ......