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Fridge /compressor problems

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Angelina View Drop Down
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Joined: 10 August 2019
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Angelina Quote  Post ReplyReply Direct Link To This Post Topic: Fridge /compressor problems
    Posted: 09 October 2019 at 06:55
After a lightning strike the fridge does not cool.
A new controller has been installed. New coolant filled. The pump works, electrically all seems OK.
Somewhere the pressure disappears. No obvious leak.
I have a 400, built 2009, twin wheel type.
Very difficult to get to the system or replace.
I think the instalation is very similar on all types.

Anyone have an idea, or taken the hole fridge out before?
Any hint is welcome.
Thank you
Gordon
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Captain Cook View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Captain Cook Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2019 at 09:32
First read this post:

As you can see, the Isotherm unit is built into the pantry, and Hanse has used a lot of glue to assemble the furniture.
With the search function you can find a post where the evaporator  and compressor has been renewed. Changing the entire Isotherm unit is quite a job, since the pantry is assembled around the unit.

you can find instructions to read out the error codes from the compressor. Just mount two cables with a bulb on the compressor. Then start the system and watch the bulb. No blinks = OK. One or more blinks = Fault.

As you can see in the first link, I have made an inspection hole in the plywood to the left of the oven. You may be able to work on the compressor with the aid of a mirror, but my solution is less frustrating.
If  you search fridge/isotherm/cooling e.g you will find hundreds of hits.

(You can find advices like this: " I put a LED through the wood so I could check the fault-codes.
It is connected to the little "+" and "D" beside the compressor.
There are multiple pages on the net with explanation of error- finding the Danfoss DB35.)


Edited by Captain Cook - 09 October 2019 at 09:53
Freya Hanse400 #27 from 2006, 40HP Yanmar 3JH4E, Teak deck, 3-blade Flexofold, Aries LiftUp Windvane, Exturn 300, Jefa DD1, Icom M802(SSB), Simrad NX40
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Nigel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nigel Quote  Post ReplyReply Direct Link To This Post Posted: 15 hours 45 minutes ago at 05:53
I also have a 400e built in 2009, I need to replace the Isotherm according to the local technician...AAAAGH! 
The boat lives in tropical Western Australia and I think the lack of ventilation of the compressor didn't help.
Can I get to the compressor via the front bunk? ... any help and photos would be appreciated.
Nigel Satchmo GBYC 241
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Captain Cook View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Captain Cook Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 18 minutes ago at 20:20
The search function can help you.
There is a subject somewhere about a member placing a  new compressor in front of the sink.
If you read the link in my post just over yours, you will see, that it is almost impossible to dismount the whole Isotherm unit. As you can see, I have made a big hole beside the oven for access to the compressor.
Read also:
https://www.myhanse.com/search_results_posts.asp?SearchID=20200228201542&KW=R134a (I searched "Isotherm coolant R134a").
- and there are a lot more subjects to find with the search function.
If you read uploads/729/!BD35.pdf , you can check, if it is necessary to change the compressor, or if  it just need a topping up with R134a.
To sum it up: Replacing the whole isotherm unit is expensive and NOT easy. All the overly glued wood components will have to be taken apart without damaging them, because replacements will be of a different colour.
Changing the Danfoss compressor and the evaporator is quite easy if you place the compressor in front of the sink somewhere. In a tropic climate one should consider a water-cooled compressor.




Edited by Captain Cook - 47 minutes ago at 20:51
Freya Hanse400 #27 from 2006, 40HP Yanmar 3JH4E, Teak deck, 3-blade Flexofold, Aries LiftUp Windvane, Exturn 300, Jefa DD1, Icom M802(SSB), Simrad NX40
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