Many basic UK Indesit washing machines fitted with a rotary dial indicate error codes by clicking the dial continuously round and flashing the door lock light a set number of times. If the door light (LED) flashes 10 times it means, “Pressure switch not sensing correctly: Check pressure switch and module”. As Hotpoint and Indesit washing machines are currently owned by the same company they share many things and some of the error codes are the same too as in this example.
The pressure switch is an air activated switch triggered and released through air pressure created by rising water in the pressure chamber bottle. using this method the pcb gets told when sufficient water has entered the machine and when the water has successfully drained away. This error is saying the pcb is not detecting any signal from the pressure switch.
As there are two other error codes for telling the pcb that the pressure switch is stuck either on empty (off) or on full (on) – (error codes 4 and 5 respectively), this particular code implies something has gone wrong with the communication between the switch and the pcb rather than the pressure switch being faulty although I couldn’t rule it out.
If you have this error code it is probably best to get an engineer out to look at it.