probably because a) the coils are dirty- need to be cleaned b) low on freon (but it might have a leak. temporary fix) c) old and should be replaced (over 10yrs. is old)
To properly vent a portable air conditioner, you need to use the included exhaust hose to vent hot air outside through a window or a vent. This helps the air conditioner work efficiently and keeps your room cool.
Low refrigerant charge? Temperature control cable not adjusted properly?
If your air conditioner is set to cool and it is heating you have a broken thermostat.
If it does what it is supposed to do, like cool the room when it is warm then it is working properly.
cool air
a air conditioner an cool you down
it's an air conditioner because you made it into cool
To properly vent a portable air conditioner using a venting hose, you should connect one end of the hose to the air conditioner and the other end to a window or a vent. This allows the hot air produced by the air conditioner to be expelled outside, while bringing in fresh air from outside to cool the room. Make sure the hose is securely connected and there are no obstructions blocking the airflow.
with an air conditioner
No. Running an air conditioner on fan does not cost as much as running on cool.
One air conditioner alone will be inadequate to cool a large 5 bedroom home.
Absolutely not.