Pressure Switches Etc Zanussi Won't Spin Fast

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Zanussi FJS 1225 W will not reach fast spin and motor jerks

The problem

A Zanussi Jetsystem 1200, model FJS 1225 W, would not spin at full speed. On spin, the drum kicked briefly then only idled or chugged slowly while the drain pump continued to run. The drum turned freely by hand, and the fault remained with no load. The owner had already cleaned and blown through the hoses and only found a very small amount of debris.

Likely cause

The accepted reply said the fault was more likely to be in the timer, PCB board or motor, with badly worn carbon brushes given as a possible cause of the jerky motor behaviour. A pressure switch fault or blockage in the pressure bottle was considered less likely because that would normally allow washing and distribution but prevent fast spin only, which did not appear to match the reported symptoms. Water having got onto the electronics was also noted as a possible contributor.

What fixed it

No confirmed repair was documented. The accepted advice was that the symptoms did not point strongly to the pressure switch and were more consistent with an electronic control or motor-related fault, including possible worn brushes. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Checks to try

• Drum spins easily by hand
• Fault unchanged with no load
• Pipes were cleaned and blown through
• Processor relays were heard clicking regularly during spin
• Motor briefly jumped into life then slumped during each spin attempt
• Drain pump was running during the spin attempts

Parts or tools mentioned

• timer
• PCB board
• motor
• carbon brushes
• pressure switches