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Darren, My Carrier A/C was doing this, and when I got the technician out he checked the evaporator drain in the wall mounted unit,took the cover off and fiddled around then charged $90.00 and left.we got them to come back when it was still leaking but they still could not rectify the problem. Feeling ripped off I had a close look at the unit myself and seen that water droplets were forming on the condenser where the air blows out into our kitchen dining-room and then realised that my wife used the frying pan underneath where it was mounted before our kitchen reno and thought that maybe grease vapor from this process had effected the transfer of heat from air to condenser so I got the Ajax spray & wipe and sprayed the condenser coil - have not had the problem since ! Keep cooking well clear of A/C condensers!
I think what you ask is how far the refrigeration piping can be run from the condensing unit outside to the blower inside. The answer is with the manufacturer. The vertical run or horizontal run will matter and the size of the air conditioner will also matter. Wish I could be more specific but hope this helped and good luck.
If this is wall/window unit, you can do it but it can be tricky. the fan in window units usually has 2 shafts on either side , it drives fan for both the condenser and evaporator. You basically have to pull the top off, loosen set screw on both blades, remove some screws to move back condenser coil(gently, don't kink tubing) similar process on evap side. Then mount new fan motor, wire it in put fan blades back on in proper position, reassemble unit, test run on bench.
When the unit is on, go on the back side of the wall where the unit is
mounted. If this is a split system find the condensate hose and make sure it is not plugged and is draining.
If this is a window unit again go in the backside of the wall and see if it
is dripping there. If it is not, take the unit out of the wall, remove the top
and wash underneath the coils. Install the unit so it slants to the back.
If the unit is mounted on an outside wall check the condensate drain that comes out with the line-set to the outdoor unit. If the pipping goes up into the attic than you have a small condensate pump that may have failed. The float in the pump may have stuck in the down position not allowing the pump to come on.
It probably has a clogged condensate drain. Take off the cover on top the RV and check hoses or tubes leaving unit for debris or lint. Often this water is used to help cool the condenser so look for leaves pine needles etc in the pan. There may be a cover you can remove on the evaporator section that will allow you to clean the collection pan and hose or trough. Is it possible the RV is far enough out of level that the condensate can't "run uphill"? Always power off while working on this unit unless you are electric savvy. Good luck!
First check the breakers for the condensing unit (outside unit) and the disconect outside by the unit (could be a breaker ,a pull off/on switch or fuses)If its ok , you should have 220 ,240 volts to the unit contactor (you'll see it after removing the cover on the condensing unit).When the termostat is in the cold position and the temperature its set is lower than the one inside the house the contactor should be pulled in and give power to the compresor and the fan.But if the termostat is in the cooldest set and the blower inside the house works and the contactor in the condensing unit is not pull in the problem is in the termostat or in the low voltage wire.