Question about Boating
I don't think you can reset it. Whatever the problem is, that needs to be corrected otherwise it will just go back into guardian mode. On a mercruiser forum, people posted that once the specific problem was corrected, the unit turned off guardian mode automatically.
Posted on Jun 15, 2019
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Posted on Jan 02, 2017
SOURCE: 2011 Mercury optimax. At 3500rpm alarm goes off and goes in guardian mode. Water pump and pressure good. Oil level is good. Oil pump working correctly. Changed internal pressure regulator. Any advice?
This could be a lot of things. Have a computer scan done to see what the issue is. Could be a bad poppet or water pump. There is a sensor in the oil tank that can cause this too. Also the throttle sensor.
Posted on Apr 27, 2018
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