Error Codes
When there are faults within the system, an error code will be displayed on the display controller: Power off the unit
and contact professional service.
Error code Description
E1 Compressor high pressure protection – check sea water flow
E2 Evaporator freezing protection – check air flow and outlets
E3 Compressor low pressure protection
E6 Communication error
F0 Ambient temperature sensor error
F1 Evaporator temperature sensor error
Troubleshooting
FAULT POSSIBLE REASON CORRECTION
Will not start Air conditioning circuit breaker is off Turn circuit breaker on at ship's panel,
See control operation section in this manual.
Display control is not turned on. Check wiring Diagram and correct if necessary.
Fuse is broken Replaced with a new fuse. (3.15 AL 250V)
Incorrect wiring at terminal strip.
Disconnect power supply and open electric box, check
wiring diagram, correct if necessary,
Push-on butt connectors pulled apart during
installation.
Check power source (shore/generator) for proper
voltage.
Input line voltage is insufficient, Check wiring and terminals for proper sizes and
connections.
Fan not running. Check your specific control Troubleshooting
section
No cooling or
heating
Temperature set point is above (in cooling) or
below (in heating) ambient temperature
Lower or raise set point.
Obstructed seawater flow. Clean seawater strainer. Check for obstructions at speed
scoop thru-hull inlet. Check for a good steady flow from
the overboard discharge.
Seawater pump maybe air-locked,
Remove hose from pump discharge to purge air from line
Refrigerant gas leaked. Check air conditioning unit for refrigerant oil leakage, call
service technician.
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