The
AC
unit
insufficient air cooling
The
AC
unit
insufficient air heating
The AC unit is noisy
provides
Restriction in water
system
Water pump
Air filter
Air heat-exchanger
Refrigerant leakage
provides
Restriction in water
system
Water pump
Air filter
Air heat-exchanger
Sea water
temperature
4-ways valve
Refrigerant leakage
Copper piping is
vibrating
Fan
Make sure that the sea water intake ball
valve is open.
Verify that the sea water intake and the
filter are not clogged, clean them.
Verify sea water pump. Replace if
defective.
Check if the pump is undersized, eventually
replace it with a bigger one.
Check the air filter, clean or replace it.
The air heat-exchanger may require
cleaning if the unit operated without a
filter.
Locate leak(s) (oil presence on piping
indicate cracks or damages causing gas
leakage). Replace the correct gas charge.
Make sure that the sea water intake ball
valve is open.
Verify that the sea water intake and the
filter are not clogged, clean them.
Verify sea water pump. Replace if
defective.
Check if the pump is undersized, replace it
with a bigger one.
Check the air filter, clean or replace it.
The air heat-exchanger may require
cleaning if the unit operated without a
filter.
The sea water temperature should never
be below
10°C / 50°F.
Check functionality of reversing valve.
Locate leak(s) (oil presence on piping
indicate cracks or damages causing gas
leakage). Replace the correct refrigerant
charge
Separate any pipe that is making contact
with other pipeor components.
Verify that the fan is firmly attached to the
air heat-exchanger.
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