This is what my air con guy told me:
Almost all air cons have leaks. Some with minor leaks take years
to run out, some like mine take months. It's not worth even finding
the leak, unless it runs out within a few weeks.
The way they locate the leak is by doing a pressure test. They
pump it up, check for loss of pressure and try to find the leak. If
the leak is in the inverter or room unit, it's easy to find and
fix. If it's in the pipe, which travels a long distance from the
inverter unit to the room unit, sometimes inside the false ceiling
and sometimes inside the wall, it can be difficult.
You are right that if the leak is in the piping, changing the
air con units alone won't solve the problem. You will have to fix
or replace the pipes, not the unit.
In the air con business, there are all manner of crooks and
untrained idiots around. Some will over charge for a small part,
some will charge for "repairs" that are not even necessary. A lot
of their workmanship sucks even when you install a new unit.
Because of this, even if my leak was more severe, I would not
change my unit.
time to get other aircon folks to ask them to fix leaky
aircon and solve problem.
id u calculate properly...its much more economically to replace
leaky joints than to keep topping them up.
just get quotation over phone from other aircon
companies b4 asking them to come to fix it.
