Hi There new to a/c been a engineer now for abput 1 year

[craigthedon]

Hi there i have a Fujitsui wall mounted a/c splt model number AOYR09LGC condenser. This is very strange what happens, put the gauges on the l/p side and they read 10 bar turn unit on and no fault codes come up and pressures dont change, but when i take my gauges off and some r410a is realised into the air the compressor some times kicks in and the unit runs fine ??????? until it goes into defrost or reaches temp. it will only start if i take my gauges of again

[install monkey]

if the gauge lines are new then they can sometimes partially depress the schraeder core
when u start the unit- run it in test mode on the controller- there can be a 3min delay- check the outdoor unit for loose connections
click on link below to view service manual
http://www.manualslib.com/manual/452600/Fujitsu-Asya07lgc.html?page=5#manual

[craigthedon]

ok will check for lose connections also run in test mode and nothing happend with the gauges they stayed at 10bar. thanks for the reply and manual. i thought it might be the capacitor not holding a charge but by the looks at the drawing theres not one strange