On arrival system is running but intermittently shuts down even though thermostat is calling. Fault code L0, problem in control board. Outdoor temp was 120 and according to display, control board temp was 147. System may be shutting down to protect control board but need to talk to tech support. Arrived too late to call techs support, they are east coast and close by 3pm. Need to reschedule for 12-1 another day Spoke with Bosch tech support and we diagnosed the system with a bad inverter board as well as bad compressor. Submitted parts order sheet and will be waiting on parts to arrive. Replaced compressor and inverter board. Tested system operations and everything is working well at this time. Advised home owner to run system as he normally would and monitor if temperature is being satisfied.