SHD Power on problems

I have a SHD radar unit that seems to have problems powering on sometimes. If 12v power is lost and then restored the radar unit fails to power on about half the time. When this happens the VCM100 will audibly click, the standby light goes out momentarily, the green on LED lights momentarily and then the green led is extinguished and the yellow standby is illuminated again. Sometimes I can resolve this by turning the power off and then back on. Other times I can only restore functionality by disconnecting the cable from the back of the radar pedestal and reconnecting it. Once the unit powers on it works flawlessly until power is lost again.

Does this point towards a fault with the VCM?

Thanks
Ben