Mitsubishi - Multi Communication System Reset

If your Mitsubishi Multi Communication System (MMCS) is freezing, having Bluetooth trouble, or showing errors, a reset often clears the glitch. Depending on the severity of the issue, you can try a quick reboot or a full factory reset. 1. Soft Reset (Reboot)

Method 2: Reset via Wired Remote (PAR-3x, PAR-4x Series)

1. Install a Surge Protector

Unlock Bluetooth:

Select Handsfree Module and then Unlock to reset the passcode for phone pairing. Physical Reset (Power Cycle) mitsubishi multi communication system reset

MELSEC

Mitsubishi sells the surge arrestor (Part # SP-5C). Install it on the TB5 communication terminals. It costs $40 but prevents lightning from frying your network. If your Mitsubishi Multi Communication System (MMCS) is