Portable Fridge Danfoss Intermittent 3 Flash Error Code

Submitted: Tuesday, Nov 24, 2015 at 14:58
ThreadID: 130969 Views:5909 Replies:7 FollowUps:8
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My 2008 National Luna portable fridge is giving me grief . In 2013 Error Code 3 (compressor failed to start ) resulted in the Power module been replaced at a cost of $648 .
Now the fault has returned intermittently.
Last month when fridge was shifted from car to tent, Error Code 3 reappeared, after some hours it rectified itself. The service people suggested it was a unbalance of gasses.
Two weeks ago, aware of this issue, I transferred the fridge to the car the night before we were leaving . Connected the 240v power up at 5:30 am – Error code 3 again !!!!.
I took it to there Refrigeration experts where they plugged it in and saw the Error code 3 .
It took them 5 days to get to work on the fridge and guess what, they plugged 240v power in again and it works perfectly.
They suggest I replace the Danfoss Control board at a cost of $450.
I question how they know this is the cause ? It may be a compressor winding fault or the original
National Luna Power module like previously, even thou I measured 23v at Compressor terminals with fan running with the fault code flashing.
Anyone had similar experiences or advice before I shell out big bucks on a maybe faulty part ?
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