UltraCool Evaporative Coolers in Phoenix Homes

It is a call-today problem, not a shut-off-the-house problem. The usual cause is a float valve stuck open or an overflow tube blocked with scale. Turn the cooler off at the wall switch, stay off the roof, and we will handle it from the ladder.

Longer than loose aspen pads, but Valley hardness shortens it. A bleed-off or purge system, a clean pan each spring and a proper winter drain make the difference. We inspect the media at every start-up and tell you when it is scaled past saving.

Please do not. The cooler adds moisture that the air conditioner then has to remove, and the cooler needs open windows while the AC needs closed ones. Pick one for the day based on the humidity.

No. We are an independent service company with no affiliation to UltraCool, and we service coolers of all makes because they are on Phoenix roofs. The UltraCool name and related trademarks belong to their owners.

A dry pad, a dead pump, scaled media or simple humidity. From the ground you can sometimes see through the louvers whether the pad looks wet. Beyond that it needs a technician; the page on a system running while the house stays hot covers the refrigerated-air version of the same complaint.

If the household has stopped using the cooler from June through September and wants refrigerated air, that conversation is worth having; the evaporative cooler replacement page explains the options. If the cooler still carries the shoulder seasons and only needs a pump, repair it.

Drain the pan, shut off the water supply, disconnect power, and cover the unit or close its damper so conditioned air does not escape through the duct all winter. That shutdown is part of a fall maintenance visit.