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Old 09-23-2023, 04:48 PM   #1
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Efoy Error

Hi all, I recently returned to my Monk 36 to find I forgot to turn the shore power switch back on after a short voyage. The Efoy fuel cell kept up for as long as it could but the methanol cartridge ended up running dry. So, I found the batteries flat. I switched on the shore power and the batteries have completely recovered. I have replaced the methanol cartridge. Problem is, the Efoy fuel cell is showing an error that I cannot clear: ďNO CONNECTION: please check data cable and connection to fuel cellĒ

I have thoroughly checked all connections and they are good. I have unplugged the power from the fuel cell in an attempt to reset it. I cannot clear the error message or exit from that screen, and of course the fuel cell isnít working now.

Any ideas? Thanks.
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Old 09-23-2023, 07:22 PM   #2
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Have you tried turning it off and then on again?
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Old 09-23-2023, 08:23 PM   #3
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Any ideas? Thanks.

Forgive me for stating the obvious, but what does the manufacturer say?
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Old 09-23-2023, 09:39 PM   #4
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Have you tried turning it off and then on again?
It wonít let me turn it off. I have disconnected the power and left it for a night, no change
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Old 09-23-2023, 09:42 PM   #5
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Forgive me for stating the obvious, but what does the manufacturer say?
I have found nothing in the documentation. I have messaged the manufacturer, no response as of yet.
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Old 09-23-2023, 10:12 PM   #6
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Any reset buttons?
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Old 09-23-2023, 10:52 PM   #7
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Any reset buttons?
Negative
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Old 09-23-2023, 11:14 PM   #8
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What is the model number of the unit you have?
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Old 09-24-2023, 12:28 PM   #9
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I had a look here at one of the manuals and they describe how to connect and disconnect which may be necessary for a reboot. Your error is not mentioned.
WAG. Disconnect the data cable first, then the negative cable, then positive. Let it sit for some time, say 10 minutes.
Connect positive, then negative, then data cable.
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Old 09-24-2023, 12:55 PM   #10
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I had a look here at one of the manuals and they describe how to connect and disconnect which may be necessary for a reboot. Your error is not mentioned.
WAG. Disconnect the data cable first, then the negative cable, then positive. Let it sit for some time, say 10 minutes.
Connect positive, then negative, then data cable.
Ok thanks Iíll give that a try
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Old 09-24-2023, 05:31 PM   #11
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It might have a "hidden" reset button. Anyone remember the one they put in the original Macintosh computer? Located between the air vents!!!
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Old 09-24-2023, 08:17 PM   #12
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I had a look at a couple of different manuals for different models and each has it own way of doing a reset...............
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Old 09-29-2023, 02:05 PM   #13
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I had an issue with my Efoy where it thought the cartridge was empty when it wasn’t. I contacted the phone number in Germany that’s in the manual and they set me up with EFC Energy in Calgary. I sent it to them, they repaired it and sent it back. Took about a month and a few calls to check on progress but it was covered by the warranty.
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Old 09-29-2023, 02:07 PM   #14
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I had an issue with my Efoy where it thought the cartridge was empty when it wasnít. I contacted the phone number in Germany thatís in the manual and they set me up with EFC Energy in Calgary. I sent it to them, they repaired it and sent it back. Took about a month and a few calls to check on progress but it was covered by the warranty.
Sorry that should say SFC Energy
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Old 09-29-2023, 07:13 PM   #15
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Efoy error

Can't help with the error but have been considering a Fuel Cell for a while. There was a manufacturer named Watt that looked interesting because they used propane and with a galley change I'd have fuel for both.

How large is your house bank?

We added solar and until we lost our Hard top over the bridge in hurricane Ian, it was keeping our batteries charged.

How do you like the Efoy and what size do you have?

Good luck with your Efoy issue. Shame the manufacturer doesn't realize the bad publicity that arises out of antiquated communications when you have a problem. If they aren't easy to reach by phone and respond in very short order, like the same day, they aren't getting my money.

Hope all works out for you. Keep us posted on the outcome.
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Old 10-11-2023, 04:14 PM   #16
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Originally Posted by Nepidae View Post
Can't help with the error but have been considering a Fuel Cell for a while. There was a manufacturer named Watt that looked interesting because they used propane and with a galley change I'd have fuel for both.

How large is your house bank?

We added solar and until we lost our Hard top over the bridge in hurricane Ian, it was keeping our batteries charged.

How do you like the Efoy and what size do you have?

Good luck with your Efoy issue. Shame the manufacturer doesn't realize the bad publicity that arises out of antiquated communications when you have a problem. If they aren't easy to reach by phone and respond in very short order, like the same day, they aren't getting my money.

Hope all works out for you. Keep us posted on the outcome.
I have an older 210, the largest one they have. I think itís great, nicer than a genset for sure. However, if you rely heavily on 110V stuff (microwaves, tvís etc) then it may not be for you. I donít draw vary much at all. The Efoy maxís out at 8 amps (charging). When Iím at anchor, the only power being drawn is the 12V fridge and other basic 12V items like LED lighting and a VHF radio. The only 110V thing I have going via the inverter/charger is the laptop and charging phones. The price of the methanol has tripled since Covid, so thatís a consideration as well. One 10L cartridge is $250cad now (average) (one cartridge would last me two weeks if it was working solid for 10-14 days. I have never put it the test like that however. The odd weekend and thatís it. Unfortunately, the methanol cartridges have a yearís lifespan (they have an expiry date). After the year is up, theyíre not as potent. I am using one that is two years old now and it only charges up to 5 amps.
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Old 10-19-2023, 06:13 AM   #17
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I have an older 210, the largest one they have. I think itís great, nicer than a genset for sure. However, if you rely heavily on 110V stuff (microwaves, tvís etc) then it may not be for you. I donít draw vary much at all. The Efoy maxís out at 8 amps (charging). When Iím at anchor, the only power being drawn is the 12V fridge and other basic 12V items like LED lighting and a VHF radio. The only 110V thing I have going via the inverter/charger is the laptop and charging phones. The price of the methanol has tripled since Covid, so thatís a consideration as well. One 10L cartridge is $250cad now (average) (one cartridge would last me two weeks if it was working solid for 10-14 days. I have never put it the test like that however. The odd weekend and thatís it. Unfortunately, the methanol cartridges have a yearís lifespan (they have an expiry date). After the year is up, theyíre not as potent. I am using one that is two years old now and it only charges up to 5 amps.
Good morning !

I have exactly the same problem on my EFFOY battery, could you tell me how you were able to resolve your problem?

Thank you so much !

Thibault Roche
Country: France
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