Check operation of condenser fan, voltage to compresser clutch if its down you can fit a 30 amp relay in line to the clutch, replace high pressure switch as a precaution these are cheap and easy to relace and you won't loose gas on removal. Regards Eric
Someone will need to find out if the compressor clutch is failing, or if it is loosing power due to a pressure switch or other problem.
A faulty relay or switch could get hot and switch off power to the compressor.
SOURCE: pick up Nissan air conditioner system.
CHECK YOUR CONDENSER IT MIGHT NOT BE GROUNDED. MINE DID THE SAME THING IT WOULD COME ON AND THE CONDENSER WOULD RUN FOR A FEW MIN. THEN KICK OFF AND NOT COME BACK ON MAKING IT BLOW COOL AND NOT COLD
SOURCE: rear air conditioner
could be an electrical problem.
the solenoid for the rear evaporator is not being switch on to let refrigerant flow to the back evaporator .
another problem could be if you do not have a solenoid, then maybe the rear expansion valve is clogged that is why no refrigerant flow to the back.
tnx 4 using fixya,
drcool
SOURCE: Nissan Altima no cool air blowing or hot air blowing
Hi!
It
appears we have an Air lock scenario and you will need to perform a
system Bleed.
Park
the vehicle on level ground, when cold remove coolant filler cap,
start engine and leave to idle, turn heater on full and blower to
max. When engine reaches operating temperature watch and listen near
coolant filler, keep clear as gurgling and hopefully a boil over
should occur. Top up with very warm coolant and wait as it may do it
again.
Check
for heat inside vehicle if warm replace coolant cap but keep an eye
on temperature gauge as the ~Air lock may have moved on from heater
matrix/core so proceedure needs to be carried out again from COLD.
Please
press the Blue button to appraise my FREE Efforts, Thank You!
Paul
'W' U.K
SOURCE: Air conditioning does not blow cold air all the time
your high pressure switch is faulty. the part is about 50$
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