Mach MS/EASY 50 Manuel D'instructions page 37

FAULT
1) Green warning light not
illuminating.
2) Tub not filling.
3) Tub-filling continues after water
level is reached.
4) Wash ineffective.
5) Rinsing inadequate (First make
sure that the washing cycle is not at
fault, as this may affect rinsing).
6) Rinsing temperature inadequate.
7) Washing temperature inadequate.
8) Boiler warning light not
illuminating.
9) Boiler warning light remains
illuminated.
CAUSE
■ Master switch off.
■ Master switch or relative fuses burnt
out.
■ Warning light damaged.
■ ON/OFF switch damaged.
■ Water inlet interceptor shutter down.
■ Overflow badly fitted or not seated.
■ Inlet electrovalve filter clogged.
■ Inlet electrovalve coil disconnected.
■ Inlet pipe filter clogged.
■ Faulty PCB.
■ Faulty boiler thermostat
■ Elecrovalve membranes damaged or
dirty inside (this is evident because the
machine continues to load water even
when the master switch goes off).
■ Not-adjusted/faulty pressure switch
■ Detergent ineffectual.
■ Detergent badly dosed.
■ Detergent unsuitable.
■ Suction filter dirty.
■ Washing pump seized up (for three-
phase machines with backward revs).
■ Too much foam in the tub.
■ Wash arms do not turn freely.
■ Water pressure below that required for
rinsing (see instructions). - Pressure
reading to be taken at electrovalve inlet.
■ Nozzles caked with lime deposit.
■ Electrovalve filter clogged.
■ Rinse electrovalve coil disconnected.
■ Inlet hose filter dirty.
■ Lime deposit in the boiler.
■ Rinse arms do not turn freely.
■ Water pressure for rinsing higher than
prescribed (see instructions). - Pressure
reading to be taken at electrovalve inlet .
■ Heating element damaged or
encrusted with lime deposit.
■ Safety thermostat activated.
■ Not adjusted/fautly boiler work
thermostat
■ Safety thermostat activated.
■ Heating element damaged.
■ Heating element encrusted with lime
deposit.
■ Not adjusted/fautly boiler work
thermostat
■ Warning light damaged.
■ See « 6) Rinsing temperature
inadequate ».
37
REMEDY
□ Switch on master switch.
□ Call technical assistance.
□ Call technical assistance.
□ Call technical assistance.
□ Open the shutter.
□ Fit the overflow properly into the drain.
□ Clean the electrovalve filter.
□ Call technical assistance.
□ Clean the inlet hose filter.
□ Call technical assistance.
□ Call technical assistance.
□ Call technical assistance.
□ Call technical assistance.
□ Change detergent.
□ Increase the dose.
□ Change detergent.
□ Clean the filter.
□ Call technical assistance.
□ Reduce dose of detergent / additive.
□ Clean the wash arms and the
bushings – Call technical assistance.
□ Call technical assistance.
□ Carry out a de-scaling cycle.
□ Clean the filter .
□ Call technical assistance.
□ Clean the filter.
□ Call technical assistance.
□ Clean the rinse arms and the bushings
– Call technical assistance.
□ Fit a pressure reducer.
□ Call technical assistance.
□ Carry out a de-scaling cycle.
□ Call technical assistance.
□ Press re-setting button.
□ Call technical assistance.
□ Carry out a de-scaling cycle.
□ Call technical assistance.
□ Call technical assistance.