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sachin230
28-05-2010, 12:44 PM
Mitsuibishi make Mr. slim, Model :MU-A30VD,2.5 ton capacity,
MCB 2 pole 25 amp tripped within 2/3 minute after ac unit start.
I read the manual but not get the required information.
please guide the possible cause.

martinw58
28-05-2010, 07:47 PM
is this a new unit or old unit

nike123
28-05-2010, 08:09 PM
Measure amperage and see at what amperage MCB trips.

multisync
28-05-2010, 09:20 PM
.. try it on fan only and see if it still trips. if it doesn't,.probably the compressor has gone

sachin230
04-06-2010, 09:55 AM
Thanks Multisync,

compressor has gone. it is rotary compressor.

can you guide, me the possible cause for this compressor failure.

where can I get information about troubleshotting /service manual for Mr Slim.

common thing we check electrical terminal,R22 gas pressure is 140 psi, voltage