Sorry I have the link here. This is my go to site with problems for my machine so hopefully its helpful. I will have a think an reply if I have further ideas.
Just spoken to my closet Cutie friend who has two of these machines and she has said that you need to get your machine to a Brother dealer to get it looked at. The dealer that we use keeps a supply of bits and pieces often from dead machines and knows where to get what is required. (I am aware that some machines are not so easy to get bits and pieces for). No dealer should be keeping a machine for 4 months. Every time my friend and I get our machines back from repair or service there is a label attached saying what has been done to the machine and if new parts are installed the old bits are handed to us. We also can phone when the shop is open to ask questions if we think there is a problem which is most useful as a visit to them takes a day. Please let us know how you get on with this problem
It IS an authorized Brother dealer. However, it is also a very large fabric store, and took considerable time to move to new location. I was told my machine would ''stand in line'' until they had settled in. I wanted it so badly I agreed to be patient. Thanks for reminding me about ;ann;s fixit;--I have chatted with her via email in the past, but forgot. Her husband is elect. engineer and they learned to fix her machine to eliminate her long trips to repair.
Why don't you call Brother and see if you can get to a repair department and see if they can give you some advice on what the problem might be and see if they have a factory trained person in your area. They might be able to diagnose your problem better than a machine cleaner. I was having so much trouble with my Pfaff it had to be sent back to the factory. Long wait, but it works great now.
Wow! what a pity - it sounds like the mother board is acting up to me. I can't believe that it was in the repair shop for that long and nothing has been resolved. Good luck with it. Love Chris
Yes, that is ridiculously long, but the dealer is in a large fabric store and they were relocating to another building. In addition, they were having trouble getting phone service--had to change carriers twice (she said). I have other machines, but this was my fave to sew on, and I used up all my patience, LOL