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The CH supply water temperature sensor 2 error
CH supply sensor 2 out of normal operating range (short circuit or open circuit). If sensor goes outside the range , error will be generated. In case sensor is back to the normal operating range, error is gone. In error mode, heat deamnds will be disabled. In case 2 ore more sensors are broken, controller will pick up the first that was outside the operating range. Resolving situation can be achieved only if the sensor is within operating range again.
