Hi - I have a MasterTemp 400. When I turn on the Spa, the heater runs constantly (maybe 10 minutes) until the water temp is about 88 degrees. Then I get an HLS led and the heater starts cycling. Off for about a minute, then on for about 2 minutes. The water eventually gets to 104, but it takes longer than it could if it just kept running all the way up until the set point.
I have the pump running at 3400 RPM to make sure there was enough flow and still get the same result.
Is this as-designed, or do I have a problem?
I have the pump running at 3400 RPM to make sure there was enough flow and still get the same result.
Is this as-designed, or do I have a problem?