on remote or local, water pump dosen't start. Light D8 have no power. Works manual so hydraulic are ok. Whats happen ?

Does it have a low water sensor?If so twist the 2 wires together and see if it works electrically...

I agree

ya they have sensor i gonna try that   or any suggestion relay ou ground ??? green light D8 turn on before pulsar coil or only when coil works properly ???

Connect the two wires that go into the tank by the pump. Thats your low water relay. I had trouble with my 02 also.

ok thanks guys and where is this relay ?

No relais, just a sensor at the bottom of the water tank