condensation from evaporator coil. should be piped into a drain line leaving cooling coil.
Most likely the humming noise is coming from a contactor located in the outdoor unit if you hear the noise outside or from the air handler or furnance located inside the home,if the hum is inside the home
pluged filter, dirty coils,
The furnance is not coming on.
No. If you have hot water heat, you also have a separate air handler for the AC to circulate the air.
Inside unit that distrubute air threw a handler unit
trane air handler tonnage for model BWV760P100A1
Usually stamped on the outside of the handler.
NO
No, the air handler won't push enough air to keep the coil from freezing up.
A furnace is a device to make air hot and spread it through a home via heating pipes.
Yes. The blower motor of an air handler unit can be considered as an ignition source.
Next to the indoor coil.