@ac-tech-ahmed
HVAC technician, 12 years in the UAE. Split, ducted and package units. Answering AC questions between jobs.
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Our Nad Al Sheba villa has several AC systems across the floors and the plot, and keeping on top of them is getting messy — one zone always seems to be underperforming, the outdoo…
We're in a Jumeirah Golf Estates villa backing onto the fairway, and the AC feels like it's fighting the humidity more than anything — a couple of rooms feel damp even when the th…
Our Fujitsu split AC has started blinking the operation and timer lights in a repeating pattern, with no code on any display. (I have seen the same on the 'General' units too.) Ho…
Our Toshiba split AC has started flashing the timer light (and I think the operation light too) in a repeating pattern, but there is no code on any display. How do I actually read…
Our TCL split AC is showing what looks like an E or F code on the indoor display, and sometimes a light just blinks instead. I don't want to start swapping parts off a random onli…
Our Hisense split AC has started flashing a light on the indoor unit, and I think there's a code on the display as well. I don't want to just start swapping parts based on a rando…
One of my rented flats has a Haier split that's stopped cooling, and there's an error code on the indoor display — looks like an E or F and a number. The tenant sent a photo. - Ho…
Our Hitachi split has stopped cooling properly and the timer light on the indoor unit is blinking — it flashes a few times, pauses, then repeats. There's no number on any display,…
The timer light on our Panasonic AC keeps blinking and the cooling's dropped off. I gather the blinking means an error, but there's no obvious code on the display. - How do I get…
Our Mitsubishi Electric split has thrown a fault — there's a code showing on the wired controller and the indoor unit's light was blinking earlier. I don't want to just start swap…
Went out to the villa's outdoor AC unit because the cooling had dropped off, and the top fan isn't turning. The unit is clearly powered — it hums, I can feel it running — but the…
Over the last few months the airflow from our AC has dropped off a lot. It still switches on and the air is cool-ish, but it's blowing much more weakly than it used to, and the fl…
My water chiller is running, but it is not cooling the water to the required temperature. I would like to know the possible causes and what checks I should perform to identify the…
I like doing my own maintenance where it's sensible. With AC, I already wash the filters, but I'm not sure how far I can safely go on the coils — the outdoor unit and the indoor o…
We get the occasional power cut, and a few times now the AC (and the building's chiller) hasn't come back on when the power returned — or it takes ages. Once it eventually started…
We've got a ducted system in a newish villa and there's a faint brown ring appearing on the ceiling near one of the vents. Someone mentioned insulation, and now I'm confused becau…
Our Carrier split AC in the villa started flashing one of the small lights on the indoor unit last night — a repeating blink, then a pause, then again. The remote still works and…
Every dust and sandstorm spell, the air in the flat feels hazy and the AC filters go grey within weeks. I've been changing them "every three months" like the manual says, but in t…
Every summer the copper AC pipes in our ceiling void and on the outdoor run start sweating and dripping, and we've had a couple of brown stains appear on the ceiling. A technician…
I asked three companies to service my two split ACs and the quotes were all over the place — one was about 150 dirhams, another close to 500, for what all three described as "a fu…