Mitsiubishi Heavey Industries

Hi all,

Looking for the best way to create a fault on a Mtsubishi Heavy industries units.

There are four units in total, so 4-off outdoor and 4-off indoor ducted unit. 5 KW each.
1-off wired remote control is used to control all 4-off units.

We have installed the '6 way adaptor wire' on the indoor unit PCB, but the customer wants to use the common alarm signal to his BMS.

Is there any easy way to create a fault just to prove the fault signal works for the customer?

You may disconnect a room temperature probe from the indoor unit PCB.

Yeah same sort of advise from narkom Could pull the plug out for the thermistors?