I have an OLD Grunert refrig / freezer
setup. Techcumseh CE compressor
, dual solenoids for Frig / Freezer
, 1/2 hp 12v Dc motor
and running R12,
The unit has worked flawlessly for years, fulltime liveaboard
Recently the system has developed a chattering noise
. As a guess I would say that the noise
is at 1-3 Hz. It will make the noise upon start-up and then gradually diminish. With the Refig. side off and the Freezer side operating it is particularly bad and will continue though the whole cycle.
Initially I though a rattling tube but have gone though it multiple times and no amount of pushing / pulling on the tubes changes the noise???