Purchased general 2ton window AC after selling my Hitachi 1.5ton but now I am facing another problem. New ac works fine for 1-2 hours but after that stabilizer trips and AC stops and after 3-4min it restart I am not sure what could be a problem. Is it AC or stabilizer.... Or electric wiring? Stabilizer cuts the power to the AC and it stops.
stabilizer trip - low voltage / high voltage.
if mcb trips then
-low voltage (maybe stabilizer is not boosting and simply bypassing),i.e. when the current consumption of ac exceeds the rating of the mcb it trips. usually during compressor startup there is a surge ,if your wiring is too weak(min. 4sq wire for 2 ton,) it will make your lights dim and mcb trips that instant...is can also be called as overload.
-overload(fault in ac compressor), it won't happen for a new ac.
is stabilizer rating a 5kva one?
Yesterday MCB died so I was sure it was because of it so replace it with another MCB of 25amp and started using the AC. It worked well for 2 hours and again the same issue so now I was more worried as the electrition told me that wiring is fine and 10sq wire can easily power my AC now I was 90% sure that this is because of stabilizer so power the AC directly and it worked fine for a night. Now I know wiring and AC are fine and I just need to replace my stabilizer (5kva vguard vnd500).
Another thing that I noticed is AC is getting very hot from back side is it normal?
-mcb will never die, if it is from a reputed company and being used regularly. some best brands are legrand.
-u can put ur ac to risk running without stabilizer(low voltage & high voltage). vguard is not a great brand, imo there is no brand in india which can make stabilizers properly in aafffordable range.
But nothing can be done except buying another vguard...
-ac getting hot, u mean outdoors(rear-outside)? it is normal...
Using Havel's MCB and it was working fine since many years.
I am running the AC just to check so that I know the problem and will buy a better stabilizer for sure.
The rear of the AC is so hot that I can't touch with my hands so I am worried that this can have bad effect on components