RT-175 Troubleshooting & maintenance on Injection Control Unit (ICU)

This guideline summarises the required checks to investigate possible causes in case of alarms indicating improper function of the ICU.
Unnecessary costs may be avoided by simple rectifying actions instead of an ICU replacement and shipping to a Wärtsilä service centre; e.g. exchange of available spare parts or a proper understanding of the alarms.
Should a problem not be rectified by the described countermeasures, however, replacement of the ICU must be taken into consideration.