Carrier Air Conditioner, cool air then runs luke warm air
Carrier Air Condition, cool air then runs luke warm air. Cleaned the inside and outside unit. Outside fan is running fine, however, the outside unit is hot to the touch. Why is the air condition only give us cool air for 15 minutes or so, then turn luke warm, and why is the outside unit becoming hot to the touch?
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It sounds as if warm outside air is being drawn back into the room when the unit is not actively cooling. Portable units depend on room air to carry the heat outside, & therefore will not work properly if the room is too airtight. Provide a makeup air passage by leaving the door slightly open, & see if this helps. Use a room thermometer to see if your desired temperature is being reached. Note that if the wind is strong & coming from the wrong direction, it may not be possible to prevent warm air drawback.
is it cooling some at night but none during the day basically ? Outside unit clean also ? Good airflow ? if yes on all of these feel the copper pipes that go inside the house from the outside and once a/c has been on for a few minutes the large line should be very cool or cold to where it would condensate.. Sometimes it may take up to 15 minutes..
The rule of thumb is 20F difference (lower) than ambient temperature. Most manufacturers will tell you 20 F degress is about normal. In your case it does sound a little warm, but I need to ask, sorry. Was it working o.k. before in same basic temperatures? Have you cleaned coils & fins good on Evaporator & condenser recently? Have you removed filter inside & cleaned it as well, and looked to see if coils are frosting up by chance? Is this a ducted or non ducted system? I'm guessing on a 5th wheel, it is ducted, so make sure you have good discharge on all of those as well. Any blockage or restriction on the discharge side will also cause the problem. Keep me posted on what you find.
That's crazy, we're having the same problem. Turns out there was a wattage restrictor in the furnace that was switching off 3 of the 5 heating elements in an attempt to save energy. Basically, the restrictor was sensing that the incoming air was warm, so only 2 of the 5 coils should be needed to heat the air. Well that wasn't enough and we just sat with the furnace running all day long struggling to reach the 70 degree setpoint.
This is something a technician can diagnose in a few minutes, but not the sort of thing a DIY'er should really handle.
This tubbing carries the refrigerant. The small line is flowing to their inside air handler. If the line is hot it is an indication that the outside unit is not able to release the heat. The most common reason is that the coil (looks like a car radiator) is dirty or plugged. This can be cleaned with a brush or sometimes a garden hose. They do make acid type cleaners for doing this, but the use of the acids are restricted in some areas.
By the way the other black pipe should have a larger copper line behind the black insulation. That line should be cold and sweaty like a nice glass of ice tea:)