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Tyler Z.
Tyler Z., Appliance Doc
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Experience:  9+ years being an appliance technician with factory training.
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Maytag washer Mod MVMB400VQ0 Ser CY0970431 comes up with code

Customer Question

Maytag washer Mod MVMB400VQ0 Ser CY0970431 comes up with code SD which is suds,
but there are no suds, the tub turns freely the RPS ohms ok and the motor ohms ok
Submitted: 1 year ago.
Category: Appliance
Expert:  Tyler Z. replied 1 year ago.
Hello, and thank you for using this service. I'll be helping you with your problem today.

So the first thing you need to do is remove the control panel and there is a small rubber hose connected to the main control board in the back right corner of the control panel. Disconnect this hose and blow through it to make sure it's not clogged. Try again and if you still have an issue, you'd need to replace the control board because the pressure switch is built into the control board and can't be replaced separately I'm afraid.

Please remember to rate my service before you leave. If you have any other questions, please ask me – I’ll be happy to respond. You can continue asking follow-up questions until you have all the information you need even after rating my service. Thank you!

Customer: replied 1 year ago.

I forgot to say the tube is clear and I replaced the control board


but it still comes up SD.

Expert:  Tyler Z. replied 1 year ago.
There really isn't anything else. I would warranty out the control board again if you still get an SD error.
Tyler Z., Appliance Doc
Category: Appliance
Satisfied Customers: 59604
Experience: 9+ years being an appliance technician with factory training.
Tyler Z. and 6 other Appliance Specialists are ready to help you
Expert:  Tyler Z. replied 1 year ago.
Actually I will explain one rare case I ran into as I think about this issue if the control board isn't the problem. You'll want to remove the inner tub and make sure that the plastic locking hub below the inner basket start to strip out and that can really cause some weird problem. I'm not sure if it's because the tub doesn't sit down and lock into gear causing the washer to think that there is still water or suds in the tub, but I have had that issue just one time causing the SD error.

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