Had this unit since they 1st came out. Temperature has been rising. Compressor works fine, NO noise. Water circulating fine and does not get past lightly warm. However,the low pressure head rises into the 80's. Suggested max is 75. High pressure is running in low 60!s. Any experience / suggestions? I dont want the unit to crap put so I'm going to explore. With NO discernable noise or performance problem, I'm suspecting gasket deterioration blocking a cooling passage. If it were a piston / pin are parts available? I've never taken one of these apart so I'm really in the dark. Any one have a map, compass and light?
