In December 2014 we had a Mitsubishi 3.5KW Heat Pump installed and a few weeks ago it started malfunctioning. 

We called BDT (Local contact for Mitsubishi) who gave us a service companies number. 

They have quoted $900 for a new PCB and Labour, Truck Roll, Shipping etc. 

Is it reasonable to expect Mitsubishi to come to the party here under the CGA?

Cheers