We have a mitsubishi ecodan heat pump and use the melcloud app to control it. At 05.30 this morning the pumps started and the melcloud showed "antifreeze". The frost protection is turned off, internal temperature was 18c, outside was 5c. Can anyone tell me if this is normal or how can I prevent this happening? I would also be grateful for any advice on the correct settings for the compensation curve. Thanks in advance.
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