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Old 15-03-2016, 08:10 PM   #6916
Senior Member
Join Date: Dec 2015
Posts: 1,517
Hello, recently one unit of my Mitsubishi Electric aircon isn't cooling enough, when it's at 25℃ in the past it's sufficient for cooling the room but now even at 23℃ it's not that cold.
What could be the problem for that? The other two units(it's a System 3) still performs well and it's cold enough at 25℃.

It's an 10 year old Mitsubishi Electric non-inverter aircon, model is MS-A10VD for the unit.
Gas shortage or too dusty on fan blower, maybe chemical will solve them up.

My sister house recently do the overhaul and totally solved, also gas topping else with outdoor unit clean out as well
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