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Old 07-10-2016, 05:17   #1
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Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

Hiya All

I have a new (2015/2016) volvo penta d2 55. For no apparent reason today the MDI is switching itself back on and the alarm beeps. There is no fault being shown on the display. I switch it off and a few minutes later it comes back on and the alarm beeps. Truly annoying.

Has anyone come across this before and is there a solution !!

Thanks
Julian
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Old 07-10-2016, 05:33   #2
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Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

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Originally Posted by julianvezey View Post
Hiya All

I have a new (2015/2016) volvo penta d2 55. For no apparent reason today the MDI is switching itself back on and the alarm beeps. There is no fault being shown on the display. I switch it off and a few minutes later it comes back on and the alarm beeps. Truly annoying.

Has anyone come across this before and is there a solution !!

Thanks
Julian
Replace the MDI Black Box.
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Old 08-10-2016, 04:31   #3
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

Thanks COTEMAR.

Will see the agents on Monday and hopefully they will be able to replace it.

Just one further thing on this. Because the alarm kept on beeping the only thing I could do to stop it was to take the 'plug' out of the tach/evc. I have put the plug back in now (15 hours later) and now there is no response from the control panel at all.
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Old 08-10-2016, 06:07   #4
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

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Originally Posted by julianvezey View Post
Thanks COTEMAR.

Will see the agents on Monday and hopefully they will be able to replace it.

Just one further thing on this. Because the alarm kept on beeping the only thing I could do to stop it was to take the 'plug' out of the tach/evc. I have put the plug back in now (15 hours later) and now there is no response from the control panel at all.
When the MDI mis-behaves you never know what to do next.
Try shutting off the engine electrical power switch.
Pull the 15 amp fuse in the top rubber plug of the MDI for 1+ minutes.
Put 15 amp fuss back in and switch engine electrical power back on.
Now try to start
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Old 08-10-2016, 07:56   #5
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

Thanks a lot.

Will try this. Fingers crossed.
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Old 08-10-2016, 18:47   #6
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

I don't know if Volvo has changed the design, but on a friends boat, the control unit had 2 identical plugs (out of 3 total). Unfortunately, they were poorly identified and it was possible to easily mix them up. Worse, mixing them fried the unit. Even worse, it was a "Volvo certified" mechanic that did so, but refused to acknowledge the $1000 error.

So ... before you start, carefully and properly ID each and every connection and label same in an unambiguous manner.

By the way, the actual problem proved to be a failed splice in the electrical cable between the engine box and the control head at the helm.
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Old 08-10-2016, 19:12   #7
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

I read this thread, and I contemplate the companion thread lauding the advent of common rail engines, those that also rely upon "highly reliable" complicated computers, sensors and all associated wiring.

For me, I'm glad to have a relatively simple mechanically injected dinosaur of a Kubota. With my 2-300 hours/year usage, the additional contribution to environmental disaster from such an engine is not overwhelming.

Jim
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Old 09-10-2016, 06:47   #8
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

Thanks for the observations everyone.

I followed the advice of Cotemar (I see you have an FP Helia Evo...same here)...the display came on at the tach and the engine started. Then after about 10 minutes I stopped the engine and the display went off straight away and wouldnt come back on.

Switching the power off and taking out the fuse and then putting the fuse back in and switching the power back definately seems to work to start the engine. Seems like the 'black box' is really the problem (there are times when I hate fancy technology).

Thanks for the tip Cotemar, has this also happened to you ?

So off to the service agents in Levkas tomorrow and then we will see how the whole warranty thing works !!
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Old 11-10-2016, 07:15   #9
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Re: Volvo Penta D2 55 - MDI siwtches itself back on and alarm sounds

Thanks for the comments and advice.

I went to the agents in Levkas, Contract Yacht Services and they replaced the MDI Black Box and all is well, back up and running. Still within the warranty so that is also a plus.

The mechanic reckoned he had replaced over 20 MDI this year...clearly a Volvo Penta problem.
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