System Diagnosis
Abnormal high pressure (63H worked)/Overheating safeguard operation.
Mitsubishi Electric | Default
Error Code U1- Ud
Troubleshooting guide for the Mitsubishi Electric Default system fault U1- Ud.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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