MCS T6, MCS T12, MCS T16 Troubleshooting
27
Low airflow. Airflow is blocked. Remove any obstructions in return air
stream.
Clean return air filter and grille.
Check for crushed or restricted duct-
ing, ducting must be as straight,
smooth and taut as possible.
Fan Coil is iced. See below.
Fan coil is iced. Thermostat set point is too low. Check setting on control panel.
If setting is extreme for conditions,
raise set point until unit cycles off to
give coil time to thaw.
Improper airflow. Remove any obstructions in return air
stream.
Clean return air filter and grille.
Check for crushed or restricted duct-
ing.
Ducting run must be as straight as
possible; remove any excess duct-
ing.
See the “Control Panel Trouble-
shooting” on page 30 for repro-
gramming options.
Supply air is short-cycling. Redirect supply air so that is not
blowing into the return air stream.
Seal any air leaks on duct.
Humidity level too high. Close hatches and doors.
When all else fails. Switch air conditioning unit to heat
until ice melts or use hair dryer to
melt.
Water coil is iced in the
Heating Mode.
Seawater temperature is below
4.4 °C (40 °F).
Shut down system to prevent dam-
age to condenser.
Allow coil to defrost.
System runs
continuously.
Set point temperature is improperly
set: too low for cooling or too high
for heating.
Raise or lower set point.
Porthole or hatches open. Close all port holes and hatches.
Problem Possible Reason Solution
MCS-6-12-16--O-West.book Seite 27 Dienstag, 14. November 2017 11:28 11
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