Household air conditioner have drainage pumps?
No drainage pumps, that is a water dish, water dish of water through the pipe flow naturally closed.
Joking ah home air conditioning is no drainage pump why do you want to buy this thing is your air conditioning to indoor drainage
Not very expensive, I'm not doing maintenance, the price of the parts is not very clear, guess that is more than ten dollars, but you want to confirm that this is the ceiling embedded, other forms of the unit are don't need this stuff, and it is embedded in the one horn of the condensate plate, not highlight the fuselage outside, but inside, if in the outside box can also be a junction box or hook..
Is a condensate pump, embedded units sometimes have this thing
