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Exactly.
You can only check the connectors between main electronics and user interface. Sometimes due to vibration the connectors lose a good connection, otherwise main board(PCB) or user interface (PCB) is faulty. It is difficult to find out which of them is incorrect.
Only authorized service providers have a interface for connecting to the electronics of the washing machine.
According to http://www.sewingmachinesplus.com/brother-sewing-machine-error-code-f7.php
the meaning and answers are as follows...
Q: What does F7 error message mean?
A: Speed VR disconnected
Q: How to fix F7 error message?
A: Unplug the sewing machine and reconnect any loose wires on the SSVR PCB assembly and the main PCB assembly. If the wiring connections are okay, replace the SSVR PCB assembly. If the problem persists, replace the main PCB assembly.
Hassan. It is better to make your own Question than tagging it to one from 10 years ago!
P98-934 : communication error between MCTL PCB and RF PCB, on RF PCB side. Translation: the rf reader in the drum did not communicate with the mechanical control board. First try turning off the machine and back on. Second try resetting with holding the reset key while turning on the machine.
Jun 24, 2015
OC can mean faulty communication between the 2 boards, disconnect from mains & try again which you have probably already done. There is only 1 cable from the display pcb to the control pcb and that is to the top front of the side pcb.
OC can also mean the distributor is drawing too much power, if that's the issue just replace the distributor.
there is a PCB fitted inside the machine which gives comand to the electical moter and the water pump and it is programmed to give those comands on regular time intrvals as per the programe selected by you if the machine is not working according to the programme that means PCB is malfunctioning due to many reasons like moisture in the cercuit or dry solder etc try to remove moisture by blowing hot air through it if still the problem persists change the pcb your machine will run normal
pcb as the signs were that the pcb was stuck in a programme and unable to change. Anyway, long story short, to fix it: Take the lid off the washing machine (2 screws at the back) *unplug first Locate the pcb, unscrew and lift above the washing machine with all wires in tact. Locate the wires that are coming out of the back of the "program" board, it should be 2 blue wires. Follow these back to the pcb and unplug plug in washing machine Turn on washing machine Only the on/off light should come on Whilst on, and being careful, plug back in the wires you unplugged VOILA, fixed washing machine!!
Right, have to go, got a weeks worth of washing to do!!!!
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