Dometic MCS T6 Notice D'utilisation page 27

MCS T6, MCS T12, MCS T16
Problem
Low airflow.
Fan coil is iced.
Water coil is iced in the
Heating Mode.
System runs
continuously.
EN
Possible Reason
Airflow is blocked.
Fan Coil is iced.
Thermostat set point is too low.
Improper airflow.
Supply air is short-cycling.
Humidity level too high.
When all else fails.
Seawater temperature is below
4.4 °C (40 °F).
Set point temperature is improperly
set: too low for cooling or too high
for heating.
Porthole or hatches open.
Troubleshooting
Solution
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.
See below.
Check setting on control panel.
If setting is extreme for conditions,
raise set point until unit cycles off to
give coil time to thaw.
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.
Redirect supply air so that is not
blowing into the return air stream.
Seal any air leaks on duct.
Close hatches and doors.
Switch air conditioning unit to heat
until ice melts or use hair dryer to
melt.
Shut down system to prevent dam-
age to condenser.
Allow coil to defrost.
Raise or lower set point.
Close all port holes and hatches.
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