x9200 wrote:Why BS. As an engineer I would be surprise if such appliances have no protection against low gas level that would simply shut down the compressor pump. Same goes for overheating. The worst what I could expect is the unit to shut down or not willing to turn on with some LED blinking. For the allegedly dirty compressor, the worst I could expect with the level of dirt I can see on the fins is lower cooling efficiency. Can somebody with more hands-on experience confirm if my reasoning is correct?
Ok, unless technology changed, low gas or no gas used to lead to compressor seizing up, in older Split Aircons. That's what I learnt as an apprentice in air con company. I am sure since then technology changed to detected low gas etc, but I also doubt cheaper aircons have such safety feature. Yes, the same compressor that's generally guaranteed for 5 year
To be honest, the gas issue is one problem you can always avoid with a Window / Casement unit (no tubes / pipes / joints - no leaks but bear with higher noise in return), or engage a different contractor who can use a gas leak detector at the joints to really check for leaks and double seal them. If the gas leaks constantly, the contractor lacks proper gas detection equipment.
Brah wrote:Dunno, ours always seems to peter out around the 3-month mark.
We use them regularly but never all day.
I wonder if they really require less cleaning as the service, and more Freon recharging instead.
Here's a question - do aircons use more electricity than ceiling fans? I would think so and that it depends on the respective units and usage (aircon temp and fan speed, dehumidifier, fan speed and size, etc.).
For my 2 cents, if you use a good indoor 3M Filter in the evoporator, and your servicing fellow did a good job, it should last 12 months before service. Or 6 months plus, if the condensor is anchored properly.
I have my friend doing Aircon and such work in Dubai and around there and they were in fact confused about the quarterly serving in Singapore. And don't tell me Singapore is more hotter than Middle East.
As for power consumption, it's the compressor that consumes a lot of power, when it starts up, and that definitely will beat Fan Current consumption.
A possible saving measure - if you plan to stay in your place for long: Get a Sanyo Casement Aircon. It can be self installed in the window rails. And see if that serves the purposes. That's as long as the land lord allows you to skip the 3 month maintenance of the existing
Just remove the filters and wash them and likewise you can vacuum off the back too on your own. And it's the quitest aircon of the casements
My 2 cents would be, if the landlords replace aircons older than 3 or 4 years with new ones, the newer ones would be quiter, save more energy and need lesser maintenance - and will be healthy as newer ones even do anti bacterial cleaning.