I have a 5 years old 18,000 BTU DAIKIN air con. How long do they normally last

Any A/C life span will depend on how well you keep it serviced. They need cleaning/service at least once per year for good life.

If it's anything like my ex wife,dirty,dripping and noisy could last a while.

I'd say they 'normally' don't last past 10 years in Thailand as owners don't care about maintenance but you only to look at some Thai government buildings to see that air conditioners can last decades if serviced correctly. I have an LG unit that's lasted over 7 years so I'm sure Daikin will last longer as it's a better brand. I have mine cleaned every six months and have the refrigerant refilled as needed. I imagine that once you start getting major problems with the outdoor compressor unit, such as faulty valves or a broken motor, it's probably worth buying a replacement unit compared with fixing it.

three Panasonic split units installed 1993 (in another country) still working without problems after 22 years.

three Panasonic split units installed 1993 (in another country) still working without problems after 22 years.

Naam

Aircon,s in Iceland will last for ages............won,t they

three Panasonic split units installed 1993 (in another country) still working without problems after 22 years.

Naam

Aircon,s in Iceland will last for ages............won,t they

the home where the aircons are installed is located in a tropical country with max temperatures exceeding 40ºC in summer. but unlike Thailand no airconditioning required from november till march. home is ours but occupied by my sister-in-law and her husband.