A drip pan sits right underneath your system’s evaporator coils and collects all of the moisture that drips off of them. Without the drip pan, that water would drip directly onto your system and cause some serious damage.Click to see full answer. Regarding this, where is the drain pan on AC? Central Air Conditioner The unit’s evaporator coils are located here, and directly underneath those coils is the drain pan. The moisture that the unit removes from the humid interior air condenses on the evaporator coils and drips into the pan. A pipe normally runs from this pan, leading downward to a floor drain.Furthermore, what causes AC drip pan to fill? The most common thing that causes drip pans to fill is a clog in the drainpipe. If something is blocking water from flowing through the drainpipe, it will back up into the drip pan. Due to moist conditions, algae and bacteria can easily clog a drainpipe. If too much builds up, a clog may occur. Also asked, do all air conditioners have drip pans? Although the unit in the attic was installed with a drip pan, there is no drip pan on the bottom AC unit. Depending on the accessibility of the attic, most people aren’t able to check that unit quite as often as a unit located on the first floor or in the basement.How do I replace an air conditioner drip pan? Shut off power to the unit. Remove the hatch covering the coils. Look inside at the bottom of the unit for the auxiliary pan. Remove the drain line if one is present. Lift the pan out of place and remove it from the unit. Insert the new pan and reconnect the drain line. Replace the hatch and turn on the power supply.

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