[calflan]

Thank you for the responses.
I will go after the switch first. After revieiwng some of the schematics, etc., I wondered if the switch muight be the cause, but not exactly sure why.
When the HP switch cuts out, any cold flow in the lines is locked there and freezes ?

Thanks again. This switch is 'probably' the least expensive as well. I was going to start at the condensor - which like all components - is not cheap for a shotgun troubleshoot.