to avoid radio signal interference.
You can check it by connecting one wire from the coil to any ground and one wire from the coil to 12 volts, the clutch coil will energize and pull the front hub to the clutch surface.........
if the gap between the clutch plate on the front of the compressor is too wide it will also have a hard time engaging. A/C clutch relay too weak to initiate current demand, clutch windings weak, poor ground or even inline diode (if equipped). When you jump start the compressor you are surging the wire windings which aligns the electrons (temporarily) so the next cycle requires less of a jolt.
Check the following........ 1. Clutch coil wire harness for proper connection. 2. Power and ground to the clutch coil wire harness. 3. Pressure switches.....
In a '99 Chevy Suburban, the hot wire to the AC compressor is usually the dark green wire. However, it's always best to consult the vehicle's wiring diagram or a professional to confirm the correct wire before making any modifications.
If you are talking about the compressor clutch coil windings then connect one wire to from the coil to ground and the other wire to a 12-volt source, the coil will become magnetized and will be able to put up a heavy piece of metal or you can use a ohm meter as well..........
I'm Guessing that your talking about the A/C compressor, in which there are 1 or 2 wires going to the clutch. Disconnecting this wire(or 2) will disable the compressor clutch stopping the compressor from working.
If the compressor will not come on at all, it is not because the system needs charging. Check for a blown fuse, disconnected wire at the compressor, or a defective compressor clutch.
Maybe the compressor clutch is not being sent power from the switch in the cab. I'd yank the panel out and have a look at the switch. FriPilot
I am guessing that the dryer is 220-240 VAC as is the compressor. I also assume that the third wire on the dryer is a ground. You need to make sure that the metal chassis on the compressor is not connected to the two wires. You then need to create a covered junction box where you have the two existing wires and a ground wire that you connect to the compressor metal chassis with a screw type connector. Ground wire should be 10 AWG. Now you have three wires. Connect the two hot wires of supply to two original wires on compressor and ground wire to the chassis ground.
Thats green and black wire is the switch wire for the compressor clutch. Trace the fault back to the relay. Bridge the relay out and see if the compressor comes in, if so its either the relay, switch or fuse. If not then its the feed to the relay.The system WILL have a fuse and a relay. Hope this helps.
That depends on what you're trying to do. If you just want to make certain it doesn't turn on, unplug the clutch wire at the front of the compressor.
Unplug the low side pressure sensor and run a jumper wire between the two terminals.