Error 1 Compool cp 3800

Welcome to TFP.

What heater do you have?

You can disconnect the fireman's switch from the Compool board and operate the heater from its control panel.

For the water sensor, test its resistance with a multimeter. Compare the resistance you get with the chart below. If the sensor is giving the correct resistance then the problem is probably in your board.

10K_thermistor_chart.png


 
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