Maintenance MCS T6, MCS T12, MCS T16
32
10 Maintenance
10.1 Reversing Valve
The reversing valve must be energized periodically to keep the internal parts moving
freely.
➤ Switch the air conditioner unit into heat for a few seconds once a month.
10.2 Seawater Strainer
➤ Ensure that your pump receives adequate seawater flow by regularly cleaning the
strainer basket.
➤ Periodically check the overboard discharge for a steady stream of water.
➤ Check seawater intake speed scoop for obstructions.
➤ Make sure hoses are not looped, kinked or crushed.
“LAC” (Low AC Voltage)
is displayed.
Supply voltage is too low. Verify power to unit with multimeter.
Voltage is improperly calibrated. Verify that P-22 matches voltage
reading to unit with a multimeter.
“PLF” (Low Pump Flow)
is displayed.
Condenser coil is too hot. Verify that unit is getting water flow,
and that condenser is not fouled.
Thermistor is damaged. Unplug water sensor if installed.
Try another if it is available.
Damaged jack/socket on circuit
board.
Visually check to see that pins inside
socket are not bent or corroded.
Repair or replace circuit board if
needed.
Problem Possible Reason Solution
MCS-6-12-16--O-West.book Seite 32 Dienstag, 14. November 2017 11:28 11
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