Saturday, 12 December 2020

MasterTemp 400 cuts out entirely

Hi all,

I've lurked for a little while but this is my first post. I have a MasterTemp 400 with an odd problem. I only use it to heat our spa, as we have a pretty good solar heating system that keeps the pool warm enough for most of the season. So heater comes on per normal when we run the spa. It heats up reasonably well. But after a while the whole heater just shuts off as if someone pulled the electrical plug... except that the blower still runs (and no heat). Keypad on the heater...

MasterTemp 400 cuts out entirely


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