Quote:
Originally Posted by CarlR33
LOL, if there is a hole in the drain pan would that not be seen as going somewhere like the floor? My water drains into a PVC tube with the switch above it and this summer is putting out plenty of water that has to go somewhere and if not outside then backwards up towards the enclosed tube and switch. The pressure should be enough buoyancy force since it has no where else to go. Seems a pretty simple design.
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I don't agree. The leak could be at the back of the drain pan or above the bottom surface so that it only leaks when the drain pipe is clogged. In any event, testing the float switch is definitely more definitive if water is used to trip the float switch rather than doing it manually, with no water.