Isotherm Fridge - Danfoss Compressor Fan

[Johntheyachty]

Does anyone have a fridge with a danfoss compressor mounted so that they can see the fan?

I have an Isotherm fridge unit with one of these compressors, and when the fan starts up, it often makes a noise which sounds as if the fan is loose. The trouble is, it is mounted in such a way that I can't clearly see how the fan is attached to its spindle, i.e. is there a nut or screw that might be loose? I don't want to take the whole thing off if there's nothing I can do to sort it!

Tried e-mailing Danfoss, but no reply!

 

[coopec]

Have you checked to see if there id a user's manual on-line?

 

[the_branflake]

At a guess these are just standard 12v fans similar to a PC fan. They dont tend to come undone very easily and when they do get old sound as if something is loose. PC fans are normally just push fit i think.

 

[coopec]

Maybe this manual could help?

PDF]
Installation & operating instructions Isotherm ... - fridgetech.co.nz
www.fridgetech.co.nz/media/2420_ManualCR200.pdf‎
Installation dimension drawings ... leak-free compressor, they offer the lowest possible power ... To ensure that your Isotherm fridge operates as efficiently as ... Danfoss 12-24 VDC electronic unit and the other is equipped .... Fan not working

 

[antaris]

I replaced mine with a server fan!

 

[owen-cox]

Does anyone have a fridge with a danfoss compressor mounted so that they can see the fan?

I have an Isotherm fridge unit with one of these compressors, and when the fan starts up, it often makes a noise which sounds as if the fan is loose. The trouble is, it is mounted in such a way that I can't clearly see how the fan is attached to its spindle, i.e. is there a nut or screw that might be loose? I don't want to take the whole thing off if there's nothing I can do to sort it!

Tried e-mailing Danfoss, but no reply!

They usually have self tapping screws from the outside of the condenser into the fan in the middle. Not easy to get at in situ usually but you can unscrew the unit from the floor and carefully swing it in to the boat without bending the pipes too much. you can then get at them easily. ( this is assuming a standard under galley installation)

 

[Johntheyachty]

Thanks for the suggestions. I have the original manual, but it doesn't show what I want to see. Anyway, it sounds like it will be worth unscrewing it to have a look - if I can't fix it a server fan or similar seems a good idea.

 

[Stingo]

Can you not use a mechanic's mirror to take a look?
Much like this one:
http://www.ebay.co.uk/itm/INSPECTIO...CS-TOOL-CHROME-FINISH-FREE-POST-/320935079962

 

[Johntheyachty]

Can you not use a mechanic's mirror to take a look?
Much like this one:
http://www.ebay.co.uk/itm/INSPECTIO...CS-TOOL-CHROME-FINISH-FREE-POST-/320935079962

Thanks, but already done that, but couldn't see anything obvious - I think owen-cox's reply probably explains why.

 

[Rigger Mortice]

If it makes a screaching noise on start up it can be the bearing on the spindle. A drop of oil works wonders.

 

[Johntheyachty]

If it makes a screaching noise on start up it can be the bearing on the spindle. A drop of oil works wonders.

More of a rumble, as if it was loose or unbalanced - it will often gradually quieten down.

 

[charles_reed]

Just replace the damned thing - I put a 140mm computer fan in to mine instead of the ridiculous little 80mm one - they burn out frequently and replacements only cost £5. They're kept in place with a rubber band wound round 4 self-tappers.

 

[markdj]

We have the same issue. It seems to be the aluminium backplate that vibrates though the fan could be a bit wobbly too to cause the backplate to vibrate. It can get very loud.

I would replace it but need a 24v one and not sure of the rpm.

 

[ithet]

Like this?

I have just taken my new one out the box to have a look (Isotherm GE80 with Danfoss compressor). It has a 4inch 12v computer fan which is positioned within the cooling coils and simply held in place with cable ties - maybe these have come loose? The centre of the fan is covered by a label so no screws visible.





Regards

 

[markdj]

Oh, our rattley fan is inside the fridge... different one.

 

[Johntheyachty]

I have just taken my new one out the box to have a look (Isotherm GE80 with Danfoss compressor). It has a 4inch 12v computer fan which is positioned within the cooling coils and simply held in place with cable ties - maybe these have come loose? The centre of the fan is covered by a label so no screws visible.

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Regards

That's brilliant - just what I needed! Mine is a bit different, a 3000, but I suspect it's the same principle. Thanks very much for taking the trouble.