With the machine powered off, check if there are any loose or disconnected terminals or soldering points in the bed's connection wires. Also, inspect the wires for any signs of damage or breakage.
With the machine powered off, use a multimeter to measure the resistance of the bed's heating wires. It should be around 4Ω. If not, it indicates an abnormality in the bed's heating wires. Please try replacing the bed.
If the above troubleshooting methods did not resolve the issue. It is recommended that you create an after-sales ticket to feed back the process and results of the previous inspection to the after-sales engineer. After-sales engineers will help you solve the problem.(Reply time :1 working day)
Please click this link to submit your ticket: