Vgreen 165 freeze protection not activating

Until the issue gets resolved, the best thing to do is have the pump run at night. Generally, the hours of 2AM to 8AM are considered the "freezing hours and having the pump running at that time is a protection. If the temperatures are staying very low all day, a 24hr schedule might be best for the duration of the freezing temps. Run at a lower speed to keep the water moving and the cost down.
 
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