Owner Maintenance - Routine; Owner Maintenance - Routine Condensate Drains; Air Filters; Seawater Connections - Dometic DX Remote & Self-Contained A/C Installation And Operation Manual

Owner Maintenance - Routine

Condensate Drains
Every three months, check the condensate drains for obstructions
by pouring a quart of water rapidly into the condensate pan. If
it does not drain completely within 30 seconds, check the drain
outlets for clogging. Remember that many Cruisair systems have
two drains and hoses, one at each end of the unit.

Air Filters

At least once a month, check the lint screen or filter behind
the return air grill or on the face of the cooling/heating unit and
clean if necessary.

Seawater Connections

Verify that all seawater connections are tight, and check for
water flow from each unit's overboard discharge.

Seawater Pump

If your system uses a rubber-impeller seawater pump, you
should inspect the impeller after 300 hours of operation.
Replace it if worn. If you have a centrifugal pump, regular main-
tenance is not needed.

Seawater Strainer

Check the seawater strainer daily. Remove any debris.

Refrigerant Gas

The refrigerant gas (most likely R-22) used in your Cruisair
air conditioning system is adequate for the life of the system.
Routine "seasonal" charging of the system is not typically
necessary.

Winterizing the System

Close the seacock and remove the inlet water hose from the
air conditioner. Allow all water to drain from the system. Loosen
the screws on the pump head to allow the water to drain from
the pump. Drain and clean the seawater strainer.
Trouble Shooting
Before you call for service, review this list. It may save you time
and expense. This list contains common occurrences that are
not a result of defective workmanship or materials. If you need
service after trying these procedures, call your nearest Cruisair
dealer.
Situation
L-2086 Operation
The unit will not operate at all.
Solution
1. Blown fuse or tripped circuit breaker. Replace fuse with
time delay type or reset breaker. Check for correct sizing.
2. Low voltage to unit. Check shoreside power supply and
rating of electrical power cord to boat.
Situation
Air from the unit does not feel cool (or warm in the heating
mode).
Solution
1. The selector switch is set for FAN only. Switch the system
into the cooling or heating mode.
2. The thermostat is set incorrectly. Set the thermostat for a
cooler or warmer setting.
3. Water flow is restricted. Clear restriction. Clean strainer.
Situation
The unit operates but the cabin fails to cool normally.
Solution
1. Dirty air filter. Clean lint screen or air filter.
2. The thermostat is set too high. Reset the thermostat to a
cooler setting.
3. The evaporator has iced. Turn the system to FAN only for 5
minutes, then restart.
Situation
Compressor cycles on and off.
Solution
1. Dirty air filter. Clean lint screen or air filter.
2. Water flow restriction. Clear restriction. Clean strainer.
Situation
Water dripping inside cabin.
Solution
1. Condensate drain is clogged. Clean out drain holes.
2. Blockage in hose. Clear hose. Check downhill routing of
hose.
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