MrCool MDUI18060 - Maintenance and Care; Drain Pipe Maintenance; Seasonal Maintenance Procedures; Parts Replacement and Support

Number Error Code Error
22
23
25
26
27
PL Bus low-voltage protection
PH Bus high-voltage protection
PU Charge loop error
ee Driver memory chip error
e1 High pressure sensor error
C4 ODU jumper cap error
24
Page 28mrcool.com
Troubleshooting
NOTICE
When the unit is connected with the wired controller, the error code will show simultaneously
on it.