Service manual

Service Manual SM-MDS_(i) 73

6.6 Troubleshooting Flow Chart

Indoor/outdoor sensor failure

Error code: Decorative Error code #2 and #4, E1 to EC, F1 to F5, 11 to 1C (For MC301), E0 to E6 (For MDOM

PCB), ER64 to ER75 (For MDS-M PCB)

Remark:

Spec

PCB

Outdoor

Indoor

Specification

Control Module/Control Board

Is the sensor correctly

connected?

Connect correctly and operate

again

YES

Is the sensor resistance

characteristics normal?

Refer A

endix 7.5

Replace sensor

YES

Replace PCB

Turn off the unit