Help ASAP thrmoking blank screen.

Was able to change temperature settings next morning and take the load. Screen was little bit better for very short time. Shipper was mad because can't verify reefer settings but let me go out with warning receiver will not accept load without verifying box temperature.
OKC Thermo king took $1200. Replaced myself. Everything is plug&play Problem solved.

 

Not board. HMI module. The thing with buttons and screen. Little bit too steep 1200 but have no choise.

 

Thank you, you just remind me to ask a question about head gasket. Recently my reefer was repaired in TK for refrigerant leak. Shop manager called me with news reefer has a head gasket leak to approve repair what I did. When I looked reefer engine after repair valve cover bolts were dirty, no body was working with. Is it possible to replace head gasket without removing valve cover?

 

The gasket corners looks new and shiny. Water pump looks new but valve cover bolts were dirty and dusty. Will take pictures tomorrow. I asked them about warranty they say it's expired.