A portable air conditioner is a great way to cool a small room that doesn't have central air or the space for a window-mounted unit. Though the portable units are small and easy to maintain, there are still some common air conditioner problems that occur. The solutions are specific to the portable type of unit.
Here are a few troubleshooting tricks you can try if your portable unit starts to act up. If you still feel lost or don't feel comfortable performing a fix yourself, contact an air conditioning repair person, like those at Christian Heating & Air Conditioning, Inc., to examine your system.
Is your portable unit leaving a trail of water wherever it goes? There are two possible solutions, and both involve the drain stopper at the rear bottom of your unit.
Condensate collects in a portable unit due to the warm entering air passing across the cold evaporator coils. The drain hole exists to allow you to periodically remove this building condensate so the system doesn't flood.
If you have leaking water, check first to make sure the drain stopper is secure in the hole. Also check that the stopper isn't damaged in a way that could allow water to leak through.
Stopper looks fine? You probably haven't drained the unit recently. Hold the unit over a bathtub or other floor drain, remove the stopper, and allow the condensate to run out.
No Cold Air
Your unit is plugged in and the temperature is set low – but you're not feeling cooled down the way you should.
First, check to see if there is cold air coming out of the vent in front. If there is cold air but you aren't feeling cool, see if the exhaust tube in the back is venting outside the way it should. The exhaust blows hot air, and if the tube has come loose inside your room, the warm air from the exhaust could cancel out the cold air from the front.
Exhaust is fine, and no cold air is coming out of the front? Check the air filter on the rear of the unit. Consult your owner's manual for cleaning or replacement instructions. Try the unit again once a clean filter is installed.
Still no cold air? Call an HVAC technician. There might be an electrical problem in the control panel or with the mechanisms inside the unit. Those fixes are best left to a professional or you could risk further damage to the unit.
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