Sorry for the delay in replying, I only just came online and saw your question. Are you still looking for help with this?
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Normally this would indicate a fault that would need to e resolved.
If you need more help, can yu tell me the make and model number and if there are anyother symptoms and if there is a pattern to the flashes?
the make is electrolux. Model No. ENN28600. The green power light flashes alternately with the quick freeze light.
Apologies - only just found your answer - am not very good with computers. Thought the answer would be in an e-mail.
the freezer is remaining really cold and is built inso cannot get to back.