PMM hotpoint-ariston LST329 error 1 ⇐ Hotpoint-Ariston

[taurika]

Please help me decipher the error: PMM Ariston LST 329, in use for more than 3 years. In the evening I put the car in the wash, at night I noticed the characteristic sound of draining (the program should have ended), in the morning the same sound, I opened the PMM, the indicator continuously blinked 1, and the sound of water being sucked out, I tried to press off, it turned off after a few seconds, It turned on itself, with the same indication, tried to disconnect it from the power altogether for half an hour, the same indication and sound. Tell me what the problem is with the PMM, I looked for the error code in the instructions and on the internet, but couldn’t find it. Is it possible to deal with the error yourself, what kind of breakdown is it? Or call a specialist? Thank you in advance!