I have a Janome Combi DX Model 502. While using my machine it suddenly started to run on one speed only - very fast - and I cannot control it with the pedal. In fact pressing or not pressing the pedal makes no difference. The only way I can use it is to switch it on and off on the switch on the side, which is a bit dangerous. What do I need to do to fix the problem please?
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There could be a short in the foot control or in the cord. Do you have a pet who may have chewed on it? Take the needle out of the machine, turn it on and try moving the cord around to see if it makes a difference.
If there's a buildup of lint inside the machine, cleaning it may help. Be sure to unplug the machine and then use a can of compressed air and a small brush to clean it up.
Otherwise, take it to a local machine dealer and ask them to take a look. I'd avoid sending it out via mail as it will take longer and could become damaged in transit.
This sounds like you have a short in the control switch, and that means you need a professional. Sorry, but it isn't something you should try to fix by yourself. You could do more damage to it.
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