Dometic MCS T6 Operating Manual page 25

MCS T6, MCS T12, MCS T16
Problem
No cooling or heating.
EN
Possible Reason
Temperature set point is satisfied.
Obstructed seawater flow.
Seawater pump may be air-locked.
Loss refrigerant gas.
Seawater temperature too high for
cooling or too low for heating.
Troubleshooting
Solution
Lower or raise set point.
Clean seawater strainer.
Check for obstructions at speed
scoop thru-hull inlet.
Check for a good steady flow from
the overboard discharge.
Remove hose from pump discharge
to purge air from line.
Check air conditioning unit for refrig-
erant oil leakage.
Call service technician.
Seawater temperature will directly
affect air conditioning unit's effi-
ciency.
This air conditioning unit can effec-
tively cool your boat in water temper-
ature up to 32.2 °C (90 °F) and heat
in water temperatures as low as
4.4 °C (40 °F).
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