This intergrated machine is struggling to rotate the drum. Without a load in it, if you put it on spin, when the drum starts to turn its very slow and laboured and then it finally gets going. The belt is not slipping. Is it a motor problem or could it be one or both of the capacitors i see it has? Are these motor start and run capacitors? One is uf22 the other uf16.
Module is a DMPA type and is readily available from Tony at EMW.
But before you order a replacement module, disconnect the heater first and try it on spin with a load in the drum. Earth leakage from the heater will cause no spin faults; so will a slack belt.