Whole of the night My Window 1.5 T AC works efficiently but DURING DAYTIME WHEN IT IS HOT OUTSIDE 35-40 DEGREES C, Voltage suddenly drops down to 100V and it causes compressor to get trip and some time Power MCB also. When again I switch on the AC, compressor starts after 3 minutes delay but again after 5 to 10 minutes, voltage (of the ac line only) again starts drpping down to 100 V or even lower and compressor and then MCB trip. One more, 1 T AC is also intalled on this power line in different room which works well. Thanks, AKS
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Re: Window 1.5 AC Problem During Day
Chack size of wire. Should be at least number 10 wire. Check loose connections. Call power company to check your voltage. This time of year in different parts of the country they have brownouts which is a voltage drop becaus of the load on the lines. Have power checked. Rus
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It may be getting low on refrigerant due to a small leak. I'd have it serviced soon. When running at less than peak efficiency it will much more often switch on the heat strips and they are not cheap to operate.
The condensor is not cooling fast enough. Try cleaning the condensor coil. Also check that the fan goes on. At night the outside temperature is cooler and does not need much work to cool down the condensor.
Clean evap and cond coils
Place hand on a/c if too hot during the day but cool at night
then freon is being restricted in the condensor
Cleaning coils may help days
Put a trickle of water on the condensor during the day for a test.
I have a 1997 cadillac deville that has both 'daytime running lamps' when put into gear and 'twilight sentinel' which turns the headlamps and parking lamps on at night, and goes off during the day or when it is bright enough.
There is an adjustable delay for the twilight sentinel to turn the headlights off after the ignition key is removed and it is night time.
I had the 'daytime running lamps' installed on a 1990 Cadillac Deville that turns the headlamps only on when the ignition key is switched to on with an aftermarket module. The headlamps are about 70% or so as bright as the regular twiilight sentinel headlamps and parking lights and are designed to go on during the day.
The twilight sentinel overrides this feature when it gets dark outside.
I had the daytime running lamps installed by an auto electric shop that specializes in electrical systems, alarms, stereos, etc.
Your AC cooling efficiency is low when he ambient temperature is high and naturally it cools well when the outside temperature drops. Please remove the filter on the grill and try to clean it under the tap water and after removing all the dust fix it back to the unit. This would increase the cooling efficiency of the unit. Your AC is also five years old. Please avoid frequent opening of doors or windows. Ensure that the exhaust fan and the blower of your unit are functioning normal. The technician might not have done a proper job in fixing the area where the refrigerant would have leaked out. Please check the refrigerant pressure to ensure that no further refrigerant leak has taken place. Or even servicing your unit he would have punchered the tubes resulting in very slow leak of refrigerant resulting in no cooling or less cooling. It takes around a month to feel the pinch of it and the refrigerant. One fine morning after sometime the unit will run and it would start throwing hot air instead of cool breeze!
units are not able to work properly above 90, 1.0 T not go for more than 1 room. is outside of unit clean? if not turn off power to unit then spray 409 or simple green or something along those lines of cleaners on the coil part (soak it real good) it should cover entire coil as much as possible. let cleaner sit on it for about 10 minutes then use water hose to rinse as good as you can. wait about 10 minutes then try unit - so work better.
Possible low voltage condition would cause that kind of a problem. To small a cord without the ability to carry and maintain the voltage would cause a voltage drop. I would test the voltage supply and make sure it is within 10% of that required for your A/C to operate properly.