[Solved] OMRON RX2 blood pressure monitor - Measurement error "E"

Hello

I have an Omron RX2 blood pressure monitor as mentioned in the topic. something bad started happening to him. When measuring the pressure, when the air is released, error "E" appears. After turning on the device, it pumps air correctly, then the counter gradually drops down and when it is about to show the result, the error is displayed. Batteries changed several times, contacts under the batteries are like new.
Can it be repaired or should the blood pressure monitor be thrown away?

Added after 3 [minutes]:

It looks like damage to the heart rate sensor or an error in writing to memory.

It pumps all the way and when releasing it shows E? Does it stop, release and show E while pumping?

Hello. I opened the topic " Searching for a "Metrodyne MPS-2000" pressure sensor "The point is that I have 3 Medisan blood pressure monitors and one has the same error as the colleague who started the topic wrote and the other two have the error described by the colleague above. When the blood pressure monitor fills air but the pressure on the indicator does not increase, the pressure sensor is probably damaged. I join in to the question, what can be damaged if the sensor pressurizes the pressure normally and shows the values and the error appears only when the result should be shown?

It pumps all the way and when releasing it shows "E" (at a low value of about 40)

I`m closing the topic