Washer jet. Emptied itself over the back window for the 3rd time

[BLUETHUNDER]

And it could finally be the end. The last couple of months ive had the wipers or the washer jets acting on there own.as soon as i turn the ignition key. After a while,a few turns of the key,or leaving it for a while would see it return to normal. However. Last week i turned the key,and the washers emptied itself in 2 minutes. I managed to pull the relay before the pump burnt out. I left it for a while,then put the relay back in. But no joy. The pump started pumping straight away. Even managed to leave it for a week and the same thing happened. I'm thinking now,that the wiper module unit has now had it? Does anyone else think so from what i have said??. Ive tried from some threads on here to clean the circuit board on the module and waterproof the unit. But it doesn't seemed to have worked. I just cant reason how the water jets going off is related to the wiper motor. Any help given would be most appreiciated by a British happy H2 owner.