From one side it has good quaility of parts and electronics, from other side I recieved broken one piece. It has show er1 in any state, even without radiator. I'm disassembled it and there was separated cap of the motor and motor with rotor. There must be compressed metal at the edge of border to keep cap tight, but it was ideally clean. Somehow I'm managed to install cap back to the motor and to compress border, it's began to work ideally, no errors. I ordered it for test, and not sure about purchasing another one in this store or recommend this store to friends. Actually I want new motor, not sure that repaired one by me will work for long.
thank you ewerything works perfect