Aircon Wiring Problem

[wind30 2]

Hi People,

I have a problem with my aircon. I renovated 3 years ago and redid everything. We bought 7 new aircon and ran new wiring inside all the walls.

Problem now is that 2 of the units have died and the electrician came twice and replace the power wiring. First time was free. Second time cost me $200. Now the third unit has died. The electrician blamed the wiring supplier 3 years ago of giving him faulty wires. He said that everyone will have this problem as all the wires in singapore is problematic.

It is really fustrating as this involves hacking my walls all over again.

Question to bros here who have done this before, do your electrician run a pipe to run the wires or just bury the wires? what sort of wires can be buried inside the walls?

Should I replace all my wires at one go but I don't trust the electrician. Anyone has contacts for aircon installation?

[SKYJUICE123 0]

The claim of faulty wires from Singapore is absolutely unfounded. Electric wires comes under preview of Authority for safe use and they are tested by to Standards. If any, the electrician was supplying inferior product not to wiring regulations. Usually, approved wirings are likely to have stampings on them as a standard. Very often, the house wirings to power points etc are done by licensed electricians who would not dare to cheat as their licence is at stake but the air conditioning contractors might because running wires from power points to air conditioner is not regulated. It is always advisable either to run double sheathed wires when burying direct in cement or have single sheathed wire running in conduits. This is because some cement can attack PVC wirings.