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If there are no blockages and the non return valve on the pump outlet (where fitted) is ok then it’s the pump motor or the wiring/electronics
To date I have not come across intermittent electronics in the EVO2 or Arcadia pump circuits. Have had many intermittent starting pump motors in all brands.
Pump motor is cheap so regardless of the outcome it’s worth trying one
Murv…
Yes, good tip Wilf.
I fit a penny washer when the crack is just starting or when I have removed the damper for another job such as bearings. If the crack is bad (rental customers keep washing until it stops) then the damper repair kit sorts it.
Murv..
If no programmer available then drain machine slowly through the filter while it’s powered up so the module can track the pressure level as the the chamber empties out. When completely empty disconnect appliance and sort the fault.
Assuming the pump has not shorted and blown the module then the machine should work without issue.
If there’s a problem such as customer intervention the module may have locked out and will need one of the above listed methods to get it back to normal. In the worst cases you could always send the board to EMW for reprogramming.
Best method for peace of mind is to invest in a programming system to re-set the configuration file.
Murv…
Ahh – Stiffning brackets to the rescue! When life was simple and HP bearings took < 30mins.
The worst Merloni I came across recenly had to be re-drilled futher back on the cabinet and the suspension plastic pins mounted on the adjacent tank mounting.
Murv…
Hi
The DC board is just a rectifier to smooth motor noise and has no other function. The main/display board should power up on its own as long as there is L and N supply to KN7 via the mains switch, filter and mains cable.
Murv…
Should be able to read if the square CPU in the corner of the board is ok, the smaller DSP and the rectangular 3 phase chip are not important.
Murv…
This is a Hoover/Candy appliance – This link may be of help-
https://service.hoover.co.uk/advice-centre/how-do-i-get-the-oven-in-or-out-of-demo-mode/Murv…
In my experience this problem seems to occur on a limited number of arcadia 3 phase modules (notably those running firmware starting 46….)
The module continually tracks and stores the level sensor data. If the machine is unplugged and drained manually the level reading does not match the stored value on reconnection.
Putting water in the drum my sort the problem especially if the level is near to the amount left in at the point of when the fault occurred
It has been reported that leaving the machine on program for several hours may reset the module (never tried this due to risk of flood)
In some cases disconnecting the pressure sensor and starting a program to force an F5 has reset the module
The most reliable method is to reprogram the PCB settings file.
Murv…
I was just trying to explain ways in which electronic repair firms such as EMW seem able to program some modules without having to purchase the correct smartcard from the manufacturer.
There are tens of thousands of setting files for Merloni group appliances which are designed to run on one of many Firmware/CPU combinations. As far as I am aware these setting files are not available from the manufacturer as a block purchase.
I would have expected EMW to have checked they had a copy of the correct settings file and confirmed their ability to flash the CPU/Firmware in your new module prior to asking you to send it.
Murv…
