Brother error E701: Power supply voltage abnormally high

Power supply voltage abnormally high. The supply voltage is too high for the control box, or does not match the control box's voltage specification.

Shown on Brother machines including 311H, 311HN, 341H, 342G, 430F, 430FX, 430HX, 438F, 6200A, 7000DD, 7100A, 7220C and others.

What to check

  1. Check the supply matches the voltage marked on the control box and is within range.

Switch the machine off before touching any connector. If the code comes back after these checks, the fault is usually in the control boxes, PCBs and sensors.

Request a repair for this error   or WhatsApp the code and your model to +91-9643480908 (Monday to Saturday, 10:00 AM to 8:00 PM (closed Sunday)).

Source

Summarised by Shankar Sewing from the S 6200A instruction manual (page 70); S 7220C instruction manual (page 60); T 8421C 8422C T 8452C 8722C T 8752C instruction manual (page 92); T 8421C 8722C 8752C 8422C 8452C instruction manual (page 92); S 7000DD instruction manual (page 50). The manual has the complete procedure and connector numbers for your exact model.

Other Brother error codes

E010 Stop switch pressed in standby · E015 Stop switch held at power-on · E016 Stop switch connection fault · E050 Head tilted when the treadle was pressed · E051 Head tilted while sewing · E055 Machine head switch position · E065 Panel key stuck · E111 Needle-up stop position not reached · E130 Motor stopped / synchroniser fault · E131 Motor encoder signal fault · E132 Blown fuse on the motor PCB · E133 Motor PCB or upper-shaft motor fault · all Brother codes

Frequently asked questions

What does Brother error E701 mean?

Power supply voltage abnormally high. The supply voltage is too high for the control box, or does not match the control box's voltage specification.

How do I fix Brother error E701?

Check the supply matches the voltage marked on the control box and is within range. If the code stays, the fault is usually in the control boxes, PCBs and sensors.

Which Brother machines show E701?

In the manuals we have read, E701 appears on 311H, 311HN, 341H, 342G, 430F, 430FX, 430HX, 438F, 6200A, 7000DD and other models.