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yes i get the same thing
all you can do is contact the company and see if they reply
or you could ring John lewis customer service and ask
Davedouble check its not your sink as that is the normal problem
put plug in sink and fill the sink
remove filter in dishwasher and note water level
now pull plug out of sink and see if water level changes
Dave
the test also say you have to short out the sensor or you get an error
have emailed the test prog info
Dave
ok your getting confused i think
a magnetron works on the same principles of the thermionic radio valves from the 50’s etc. There is a heated Cathode which emits electrons and these electrons are attracted to the high voltage anode. To make it work the transformer has 2 windings, A high voltage winding which is about 2500v AC and a low votage winding which is 12volts Ac or so. The low voltage winding connects to the 2 main terminals of the mag. it has a higher current so any bad joints in the wires or connectors will stop the cathode heating and the mag wont work. Have had bad end connectors, burnt out end connectors, bad connection between the wire and connector. If its properly made these connectors should be crimped and then soldered as the wire is single core so crimps can fail
the high voltage winding is different. one end of the winding connects to the metal chassis (earth) the other end of the winding connects to one side of the capacitor. On the the other side of the capacitor a high voltage diode connect to earth. This same connector connects to the filament anode connection of the magnetron. It works like this, An AC supply goes from zero to full +ve voltage then to zero and the full -ve voltage and back to zero 50 times a second on our supply. Starting at zero the voltage climbs and the current flows from the secondary winding through the capacitor and doide and back to the transformer winding via earth. This charges the capacitor. then the voltage changes direction. In this direction the diode blocks the current flow so the voltage which is in the capacitor adds to the transformer output. this doubles the voltage and changes it from AC to DC
see if that makes it clearer or not lol
Dave
short answer no
the fan does not help the heat process it just cools the compressorits a fridge circuit with the evaporator and the condensor after each other in the air circuit of the dryer. the only heat in the system is waste heat from the compressor
try to find out if the compressor is running.
dave
ok how much do you know about how the sytem works
do you understand the heater and the high voltage circuit and how it operates along with the safety proceedures to be able to work safely ?
Dave
most units measure the water entering the unit nothing is based on time only. They have to deal with different water pressures so as long as your water pressure is ok it should work
Dave
could be an earth fault on the heater as earth faults normally get worse when things heat up
but you will find out when the enginneer visits
Dave
ok then one way you can find out is disconnect the calbles to the heater and attach something else to it. old style lamps work great. led lamps may well work as well but not tried that
you can then after insulating the connection and removing the motor belt for safety try the machine
if the heater element was the source of the problem it will run normally but when it gets to heater phase the lamp will light
goes without saying to remove plug untill you test it
Dave
you measure between one of the heater terminals and earth with both wires disconnected from the heater
How competant are you with electrics
Dave
