Sometimes my compressor fires rite up and runs when i turn it on but more often than not it tries to start but bogs and trips a breaker. what would cause this? my friend broke the cord and replaced it for me but i think its a thin gauge cord. would that have anything to do with my problem?

Want to install split unit aircon in my caravan but see it only has a 16amp breaker, would this be able to run fridge, kettle and aircon at the same time?

could be a run or start capacitor in the compressor start electrics sounds like its cycling on its on board overload capacitors usually pop or bulge on their ends

The breaker may be too small. Check the amperage requirements against the breaker size.

This unit may have an internal overload mounted on top of the compressor. You would have to get to the
compressor to find out and it maybe faulty. That may
explain why the compressor comes on later on, this
overload protects the compressor from getting hot.

When you trip the breaker and then reset it again only to see it trip again almost sounds like a direct short or loose wire. It could also mean that your
capacitor needs to be replaced or that you need a hard start kit and the unit needs a good cleaning.

Try just operating the fan and see if it trips the breaker, if it does then either the blower motor is bad
or it is still the capacitor.

two different problems here! first when it trips the breaker and you try to reset the breaker and not turn off the compressor on its pressure switch it does not unload the air off the head of the pump when you try to start it again,,, ( when it shuts off normally you hear the air drain near the switch,, this unloads the pump to restart)

The most likely reason it is tripping the breaker is that the second stage (smaller cylinder) is not doing the work it needs to do and the first stage (bigger cylinder) is pumping more now!,,,, higher pressure on this side makes the motor work harder.

I would advise rebuilding both sides to get the pump back up to correct running levels it had new.

If it runs, turns off, then tries to restart and kicks breaker, look for bad start components. Check start relay, start capacitor. It may be trying to restart too quickly and the compressor over amps and breaker trips. The system needs to have at least 3 minutes of off time before trying to restart. This allows the pressures in the system to balance enough so the compressor can overcome the high side pressure and start. I've seen where people turn the control up and down very quickly causing the compressor to over amp and trip breakers and over loads.
Hope this gets it for you.

It sound like you have a direct short in the compressor ,Usually it means you have a bad compressor,but sometimes it could be a loose wire or bad outdoor motor. Ive installed about 10 of these units and still have yet to have a bad compressor.It could also be a bad circuit board in the outdoor unit.I wish I could narrow it down better but thats my best guess!Thanks ---Nate

When finding a home for any compressor you need to take a few things into consideration. Extention leeds can create a voltage drop. for a standard compressor you will need at least a 40 amp trip switch at fuse board the draw of first start up could be a higher rating than your current breaker

This is a typical symptom of having an A/C system low on freon if it cycles on and off when first turned on or very soon afterward. All types of A/C units for home and auto have a low pressure cut-out switch that will disengage the compressor when the freon level drops low enough to cause damage to the compressor. The unit needs recharging with the proper amount of freon to correct the problem. If it's an automobile A/C system and the freon level is okay, it could be a faulty compressor clutch or coil.