My split air con unit is leaking water from the unit in house

Lift the front cover of the air con, on the right hand side there is a button or a hole which has a button inside which you can press which is for manual starting of the air con. If this works, then you will know the remote is faulty, if it still doesn't work, check that the isolator switch for the air con hasn't been turned off. There will be 9Or should be) a switch outside next to the air con outdoor unit to switch power on / off to the air con. If not, there should be switch inside the meter box at the front of the house. Make sure they are switched on.

This happens when the drain pipe is too high, or kinked. The pipe must be lower then the drain pan in order for the water to drain. This is a common problem.

That happened to us. It was a broken pump, pump was up in attic. attached to our inside air-con unit. We had it fitted on an inside wall of the house, and so a pump must be installed to take away the condensed water to the outside of the house. Hindsight being 20/20 I would never buy one that needed a pump to get the condensed water out of the house. We would have put it an outside wall where the water goes straight outside, no pump needed. Our First pump lasted just over 2 years so warranty was expired. Cost us over NZ$500 to have new pump installed. Never again. Only attach your unit to an outside wall, even it looks prettier on the wall where it would need a pump. Bottom line:- Don't touch a pump. Pump was cheap but labor cost for serviceman astronomical! Bet of luck.

Larger split system air con gets power from the external unit while smaller air con gets power from the internal unit. Can you find any power switch or power socket/plug around the external or internal units?

If the unit is on heat mode, the outside unit is the "cold" end... Sometimes if the ambient air temperature is very cold ( Under 5 degrees C), the outdoor unit can start to ice up. If it ices up too much, the air con will automatically go on to a defrost cycle where the outdoor unit will heat up and melt the ice. Water is then drained out the bottom.. its the opposite of what happens in the summer when the indoor unit has water running out of the drain hose. Especially on humid days..

condensation problem may have t-stat set to low do not set unit more then 20 degrees lower then the outside air temp may also need the line set checked for complete insulation missing insulation can cause water leakage from condensation also

Sounds like a clogged drain pan. You will need to have the unit professionally cleaned.
Hope this helps I take the time to answer your question so please rate me

The drain pipe must be plugged up or bent. Lift cover of unit and look for water in the tray, find drain hole and remove obstruccion inserting a piece of wire. Be gentle and careful. After the water in the tray drains out, pour a glass of water in the tray to rinse it out and make sure the drain pipe is completely clear.

While you are at it, clean the air filter of the unit.

Good Luck

NOW, THE EVAPORATOR COILS NEEDS CLEANNING OR THE DRAIN LINE PLUGGED,OR JUST CLEAN THE FILTER.

Inadequate angle for drainage