09-24-2018, 08:05 AM
Ed,
We had similar issues with our DDEC 8V92. We kept getting "low coolant level high voltage" alarms. They would trip the CE & SE lights. SE would shut down engine in +/- 30seconds unless I did a manual over ride on dash switch to get off roadway. After much trial & error I think that the problem originated in a bad battery on the house side. It was causing some wonky voltage outputs from the alternator as the banks on our coach auto merge when the engine is running. I have also replaced both engine batteries as as well as both house batteries and have not had the issue since. Coolant level was never low. You may want to check all your batteries if problem continues.
We had similar issues with our DDEC 8V92. We kept getting "low coolant level high voltage" alarms. They would trip the CE & SE lights. SE would shut down engine in +/- 30seconds unless I did a manual over ride on dash switch to get off roadway. After much trial & error I think that the problem originated in a bad battery on the house side. It was causing some wonky voltage outputs from the alternator as the banks on our coach auto merge when the engine is running. I have also replaced both engine batteries as as well as both house batteries and have not had the issue since. Coolant level was never low. You may want to check all your batteries if problem continues.