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#11414861 - 02/15/16 08:36 AM Alarm question on Mercury Optimax
Rob W. Offline
TFF Guru

Registered: 10/26/10
Posts: 13883
Loc: stephenville
My 225 Optimax alarm is going off every couple minutes and gives 4 beeps. It started this at the lake and all I could do is idle back to the ramp. Everything I am finding online says it is either the oil sensor on engine oil reservoir or the float is stuck on the engine oil reservoir. Main tank is full of oil and my reservoir on engine is full. Anyone else ever have this problem and what fixed it? Thanks.
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Personal Best Largemouth Bass 10.09 lbs.

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#11414996 - 02/15/16 09:20 AM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Pantera III Offline
Outdoorsman

Registered: 11/07/10
Posts: 160
Loc: Pittsburg, TX
I had something similar happen to me a while back. I let my oil tank in the boat get low and it gummed up from sucking out of the bottom. It wouldn't fill the tank on the motor completely. It has to be filled ALL the way to the top to prevent alarm. Anyway I cleaned out tank and the filter inside the tank and everything has been good since.

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#11415126 - 02/15/16 10:12 AM Re: Alarm question on Mercury Optimax [Re: Rob W.]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10772
Loc: Littlefield Tx & Lake A. H. US...
Can be water detected in the fuel, low oil level, bad oil tank float or low battery voltage
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#11415298 - 02/15/16 11:21 AM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Chris Richardson Offline
Angler

Registered: 04/28/09
Posts: 391
Loc: Athens, Tx
Mine did that once and I had water in my fuel.
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#11415312 - 02/15/16 11:26 AM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Rob W. Offline
TFF Guru

Registered: 10/26/10
Posts: 13883
Loc: stephenville
Had someone tell me to replace the oil sensor since the oil reservoir seems to be totally full,and the fuel water separating filter. Both are pretty cheap, so I'll try that and see if it fixes the problem. Thanks.
_________________________
Personal Best Largemouth Bass 10.09 lbs.

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#11415593 - 02/15/16 01:29 PM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Ol Man River Online   content
Extreme Angler

Registered: 06/16/11
Posts: 1293
Loc: Orange, Texas
Mine did same thing 2 weeks ago and it was my fuel filter/water separator...changed it and no more issues.

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#11417173 - 02/16/16 08:10 AM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Tommy Yetts Offline
TFF Team Angler

Registered: 12/14/02
Posts: 3440
Loc: Rockwall, TX USA
If it not water in the fuel then t will be the oil tank itself. The float assembly is bad.
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Tommy Yetts

www.rockwallmarine.com

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#11417221 - 02/16/16 08:30 AM Re: Alarm question on Mercury Optimax [Re: Tommy Yetts]
Flippin-Out Offline
Extreme Angler

Registered: 02/25/15
Posts: 1580
Loc: Magnolia, TX
Originally Posted By: Tommy Yetts
If it not water in the fuel then t will be the oil tank itself. The float assembly is bad.


^^^ This. The sensor in the tank under the cowling has a habit of failing. When that happens, an entire new tank assembly is called for. I'm sure there's a sensor test to confirm or disprove that a tank sensor has failed, but I'm not up on what that is. I just know that failure is not uncommon.

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#11419143 - 02/16/16 10:31 PM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Merc-opti Offline
Green Horn

Registered: 05/10/15
Posts: 2
Loc: Oange, Texas
Gotta watch the dip stick/chain on the oil tank too. My chain broke off and fell in the bottom of the tank restricting flow which gave me the same alarm. Had to have a whole new reservior put on.

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#11419154 - 02/16/16 10:39 PM Re: Alarm question on Mercury Optimax [Re: Rob W.]
Rob W. Offline
TFF Guru

Registered: 10/26/10
Posts: 13883
Loc: stephenville
Went ahead and dropped it off at Fun-N-Sun. I'm thinking it may be the float in the oil tank also. But there is just too many things that it could be for my limited knowledge. Lol
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Personal Best Largemouth Bass 10.09 lbs.

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