Machine head memory not connected. The machine-head memory is not connected to the main PCB.
Shown on Brother machines including 311H, 311HN, 341H, 342G, 430D, 430F, 430FX, 430HX, 438F, 6200A, 7220C, 800B and others.
What to check
- Switch off and check connector P16 on the main PCB. Pressing RESET lets the machine start from its backup data.
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 BAS 311HN BAS 326H instruction manual (page 64); BAS 341H BAS 342H instruction manual (page 63); HE 800B instruction manual (page 63); S 7220C instruction manual (page 59); bas326h484 instruction manual (page 60). 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 E452 mean?
Machine head memory not connected. The machine-head memory is not connected to the main PCB.
How do I fix Brother error E452?
Switch off and check connector P16 on the main PCB. Pressing RESET lets the machine start from its backup data. If the code stays, the fault is usually in the control boxes, PCBs and sensors.
Which Brother machines show E452?
In the manuals we have read, E452 appears on 311H, 311HN, 341H, 342G, 430D, 430F, 430FX, 430HX, 438F, 6200A and other models.