The eutectic refridgeration compressor on my yacht is not engaging when i make the switch on the console. Yacht engine is running at the time.I cant locate any inline fuses.

SOURCE: NISSAN 240SX A/C PROBLEM.

HI,
Yeah have the voltage to the compressor checked!..By turning on the A/C when hot (and not working),Add a test wire to the 12v output of the A/C relay, to "boost" the 12v amps/voltage going to the compressor clutch. As soon as the test wire touches a strong 12v source, the clutch immediately kicks in. Remember that 12v already existed on that wire, but a stronger 12v source helped give the clutch the extra kick it needs. Thank you!!..Hope this helps you out buddy!!.. :)

SOURCE: A/C not working

it most likely has a bad low pressure switch or you have lost you refrigerant charge

SOURCE: ac compressor fuse location on 2000 mountaineer

I don't think there is a separate fuse for the compressor. If there is no freon in the system to actuate the low pressure switch the compressor won't engage.

SOURCE: Airconditioner compressor (clutch) on 2001

Resolution:
The problem turned out to be a blown fuse labelled EBL Clutch, located in the instrument console (side panel in the dashboard next to steering wheel on a RHD model).

I downloaded the manuals of the Neon and it advised a sequence of checks to be done:
1. Test High Pressure switch located on compressor - check that the switch w/o/ cable gives a closed reading, then test with bypass in cable.
2. Test Low pressure switch located on accumulator, ( I could not find this switch). Bypass of this switch should engage the compressor clutch
3. I discovered the blown fuse when trying to activate the rear window heater and saw that the light on the switch did not activate - went looking for the fuse for this device and then found the EBL Clutch, really by accident. Shows you how confusing an abbreviated label on a fuse can be and that it does not always support the significance of it.

Other observations:
1. A/C compressor cannot run non-stop and must be controlled by the A/C controller. Hard wiring the clutch and running the engine for a few minutes led to the compressor shuddering and then discharging some gas through the saftefy valve. Normally this power supply would have been interrupted by the high pressure valve.
2. Release of coolant gas from the high pressure safety valve located on the compressor may indicate a faulty high pressure switch, but the primary or underlying reason may be due to a blocked Dryer in the A/C system.
3. The Daimler Mercedes Neon Agents, and an A/C company and an auto electrical company all attended unsuccessfully to this problem. No discredit meant in any way, it just shows that the incorrect label here makes solving such an ordinary problem very problematic. If any advice can be given to the Agents, read the manual.

SOURCE: air compressor not engage was blowing cold just

the clutch on the air compressor coil is proably burnt out. disconnect electrical plug at end of air compressor and supply current direct from battery to see if clutch engages, if it does not, change thecoil clutch switch.