Per evaluation of arctic sun device, the circulation pump is running but the flowmeter was not reading the flow.
The flowmeter will be replaced.
After the flowmeter and cards were replaced, the unit would not heat.
A test heater was installed and the unit heated until an alarm 33 appeared for high water temperature.
At 26c, the t2 jumped to 99.
9c, indicating a shorted t2 sensor.
Additionally, the original issue was for an alarm 61.
This was found to be caused by a faulty processor circuit card and power circuit card.
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