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Auto enables the unit to adjust the temp automatically as temp in the room changes. It will change to cool mode or high fan according to the temp in the room.
A few basic principles for air conditioner troubleshooting. For both central home air conditioner or window air conditioner,
the first thing to check is whether the unit is getting proper power.
If the unit uses 220 volt power be sure that the proper voltage is
getting to the unit. Same for 110 volt units. A voltage meter can be
used to assure that the voltage is correct.
For window air conditioning units the voltage can also be checked before and after the thermostat.
If voltage is being supplied to the thermostat but not from it then the
thermostat probably needs replaced. This is a fairly common problem.
Another place to check is the fan motor voltage. The fan on window air conditioners runs both the indoor blower and the condenser fan. If that motor fails than the compressor
may run for a short time, but will overheat and shut off. Continued
operation like this will result in compressor failure. This motor can be
economically replaced for larger window air conditioners, but for
smaller ones the cost of replacement will be more than a new unit.
Central air conditioners
for the home are more complex and there are more things that can go
wrong. As with the window air conditioner the thermostat can also be a
problem. The central air conditioner thermostat will only have 24 volts going to it. So don't look for high voltage there. Some units the voltage will be coming from the outdoor unit and others the voltage will be supplied by the indoor air handler or furnace. Most home central air conditioning will be supplied by the indoor air handler or the furnace. If the air conditioner is for cooling only the unit will usually have only two wires going to the condenser unit. Make sure that you have 24 volts across those wires.
The
next thing to check will be the indoor blower. If your thermostat is
calling for cooling then the indoor blower should be running. If there
is no air moving across the indoor cooling coil then you will soon have a big block of ice formed on the coil.
This can happen for a few reasons. The indoor blower is not working,
the air flow is restricted and not allowing air to move across the coil.
A clogged air filter would also do this. Or the outdoor condenser unit has lost the charge of refrigerant.
Finally and worst of all is when you have a complete compressor failure. Often when this happens the compressor will "lock up" or not be able to turn when power is supplied to it. Overheating or lack of lubrication are usually the main causes of compressor failure. Overheating can be caused by the outdoor coil around the compressor getting clogged with dirt, leaves, or grass. Loss of the refrigerant charge will also cause the compressor to overheat. It is the cool return gas coming back to the compressor that helps to keep it from overheating.
As
you can see there are many things that can go wrong with an air
conditioner and I have not come close to exhausting the possibilities
here. I have just touched on the most common problems in a very basic
way. There are some basic trouble shooting things that can be done very easily. Most
problems are above out of the range of comfort for many homeowners and
professional help should be consulted before any attempt is made at
repairs. Remember also, that the release of refrigerant gases into the atmosphere is a federal offense in the US. Proper care must always be taken to minimize the release of any gases. A license is also required to handle refrigerants. Make sure that the professional you call has the proper certifications to handle refrigerants properly.
The beeping might be an alarm that indicates the coils are iced over by
too much humidity in the air...and/or the unit is overheating etc.
shut off power to the unit for a few hours, go out somewhere if it is
too stuffy inside.. see if the unit operates better when you return...
I also suggest not running these things constantly, this causes some
units to ice up and **** up the power..
hope the unit does get replaced, newer ones are more efficient.
as for the remote,with a nail board (used for finger nails) lightly sand off the battery and battery contacts,with this file because such low voltage 3 v.d.c.(on the remote control) any corrosion on contacts even tho you can't see it can't pass current needed for proper operation/as for the compressor,replace the start relay and overload on the A/C unit and you should be good to go again
first try to clean the unit, if the problem was still there and does not give a cooling, now the unit must have to be filled again with a preon, this could be nothing in there and to be replace..
I was having the same problem....take off the display plate to see the mother board....take out the five screws....UNPLUG FIRST!!!!....tHE WIRE GOING FROM THE THERMOSTAT MAY BE UNPLUGGED...IT'S A LITTLE TWO PRONG PLUG PROBABLY ON THE LEFT HAND, MIDDLE
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