mitsi par 30 remote password

just took over a maint contract where a previous contractor has fitted some kit but changed the default engineer and admin passwords 0000,9999 to something else- tried 2014,2013 etc and also site and prev contractors phone number
is there a master reset for passwords or is it a new indoor pcb?
trying to use temp limits on rc but without access i cant initiate it

If you can't, who can?:D

When on the password screen press F1 and F2 together for 3 seconds, this should reset them back to the default numbers. . Do this on the administration and maintenance passwords.

https://www.google.co.uk/url?sa=t&rc...Ik8ineFZh80ZRA

cheers;)..