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If there are no visible leaks, and if the vehicle has 50K or more miles, it could be the water pump. Water pumps can leak small amounts of water out the "weep hole" while running (this is to indicate wear and need for pump replacement before failure), but seal up when shut down. This leaking water will often evaporate on the block or trail under the vehicle. Sometimes, if you look at the underside of the hood just above the serpentine belt, you may see a vertical discolored stripe on the paint or insulation. This may be coolant that drips onto the serpentine belt and is flung upward., but this is not always the case. Usually, if the week hole is leaking, if you can get a visual look at the bottom of the water pump pulley (often hard to do), you may see some indications of coolant seepage.
The condenser drains for a roof unit drain on top of the rv. There are on hoses which divert the condensation to a location other than the roof. Are you trying to keep it from dripping down at the door?
All the previous posts are wrong. The problem is that the pump burnout preventer assembly has come loose from it's clip or the float on the preventer is stuck. This is a different float than the water level float. It's purpose is to block power flow to the pump when the water gets low to prevent the pump from burning up. The water level float only actuates the cheap plastic gauge on the front and nothing else. Remove the upper rear section of the unit housing (the side with the pad in it) to access the burnout preventer. Its just a couple of screws at the top. The burnout preventer float is approx. 1" in diameter and is installed on a threaded tube (all together this part becomes the burnout preventer assembly) which sits in a small clip that is integral to the pump motor housing. It must be secured to the clip with a nut that threads onto the assembly. If you see two wires with a little white float just dangling freely in the resovoir then you just need to unscrew the nut, place the threaded tube into the clip and then screw the nut back down to the threaded tube to secure it. It's important to note that the threaded side goes up. You can try to place the smooth side of the tube up but you will be met with failure. If the burnout assembly is properly seated in its intended location and the low water alarm persists then it needs to be cleaned so the float can function properly. That's it very simple. I bought one of these units today on craigslist and encountered this issue when I went to set it up. It worked fine at the sellers house but must have come loose in transit. Took me about 20 minutes to diagnose and another to make the repair and re-assemble the unit. Good luck.
Without seeing the setup and possible routing of drain lines, i would suggest a 120 volt condensate pump. Then you could route the condensate overboard at a convenient location or into another drain on the boat.
Since you didn't mention what make or model vehicle it is.. I can only assume from the location of the leak, that it's the water pump or possibly the lower radiator hose. But, I'm betting on the water pump.
I would remove top cover and clean all coils you can get to by using spray condensor cleaner.You can get this at most hardware stores.Just follow instruction on can and clean thourghly. Be sure you have power off to unit while you are cleaning and flushing. This should improve units effiency and by breaking down algea growth in condensate it should drain better. Thank you.
There is a condensate tray under the coil. There should also be a drain hose or port that could be clogged. Take off top of AC unit and pour a 10% solution of bleach and water over coil, follow flow of water to drain and make sure it is working. Pour a very small amount first otherwise you will have water everywhere.
I think you are working on a RV water heater. Check the reset on the unit and turn your beakers off and on. If you are working on a gas water heater is the pilot lit. If you can get us a little more INFO we can help you better.
I'm not sure what the problem may be but you could try calling All
Seasons RV Appliance Parts & Service. There number is
1-800-344-0673 they have helped me in the past. That and there tech
calls are free so it wouldn't hurt to give them a call.
Open Front Grill cover By using Perfect tools and at the corner of the indoor Unit you will find Rubber Cap Drain Stored Water after that open Evaporator Coil Pannel Same location you ll' find Drain Pump Motor Checked out Hope so you have done