Swamp cooler parts that actually get replaced

A cooler is a wet metal or plastic box, a blower, and a short list of parts that scale, rust, or dry out. Knowing which part failed saves a second trip.

This page is a field guide, not a shopping cart. Swamp Cooler Repair Phoenix does not sell parts, does not keep a warehouse, and does not mark up a counter price, because there is no counter. Independent companies bring the part, and the price you approve is theirs. The bands below are typical for the metro, gathered from published repair ranges, and they include labor unless a line says otherwise. They are not a quote.

The parts that show up on almost every visit

• Pads. Aspen or rigid media. They are the cooling surface. Details, including why Valley water shortens aspen life, are on the pad page.
• Pump. A small 115-volt submersible pump lifts pan water to the distribution tubes. Scale locks the impeller. A pump that hums and does not pump is a common May call. Installed replacement is often published around $100 to $350, typical for the metro.
• Float valve. It fills the pan and is supposed to stop. Mineral makes it stick open, which runs water onto the roof, or stick closed, which lets the pump run dry. Often around $75 to $150 installed.
• Distribution tube. Sometimes called a spider. The small holes clog. One dry pad and three wet ones is the usual clue. Clearing the holes is part of a good service. Replacing a cracked tube is a small part.
• Belt. It connects the motor pulley to the blower. Heat cracks it. The size has to match. A painted-on guess is how belts get returned. Installed, often about $75 to $155.
• Blower motor. Residential coolers often use a one-third, one-half, or three-quarter horsepower motor, frequently two-speed. Replacement, installed, is commonly published around $200 to $650, typical for the metro, depending on horsepower and whether the pulley and capacitor come along. A motor that only hums may be seized bearings or a failed start component. Those are not the same bill.
• Bearings, shaft, and blower wheel. Squealing that starts a few minutes after the blower comes on is often a dry bearing on a unit that still has oil ports, or a wheel packed with scale and lint. A wheel that rubs the housing wastes the motor and the pads.
• Overflow and drain fittings. The standpipe sets the maximum waterline. If it is missing, the pan either underfills or spills. If it is plugged with scale, a stuck float has nowhere to go but over the edge.
• Water shutoff. Many older coolers were tied in with a saddle valve on a copper line. Saddle valves clog and weep. A real dedicated shutoff, installed by someone allowed to do the plumbing, is the piece you want before the next winterization. Say if the existing valve will not close. Do not force a seized valve until it snaps.
• Thermostat. Some coolers use a line-voltage dial, others a low-voltage control. The replacement has to match. A thermostat that never clicks is a different visit from a blower that will not turn.
• Cover and cabinet. A strapped cover is a winter part, not a decoration. The bottom pan is the part that ends the cooler's life when it rusts through. A plastic or fiberglass bottom outlasts a thin galvanized pan. Patching a pinhole from the outside of a wet cabinet is a short delay, not a repair.

What to photograph, if you can do it safely

The data plate, the pump label, and a straight-on look at one pad tell an independent company more than a brand story. Brands commonly found on metro roofs include MasterCool, AdobeAir, Champion, Essick Air, Phoenix Manufacturing, AeroCool, and Bonaire on window or wall units. Unbadged builder coolers are just as common. This site does not claim a dealer relationship with any of them. If you cannot reach the plate without climbing, do not climb. Write "roof unit, brand unknown" on the request form.

Motors and pumps for the common residential sizes are usually obtainable. An odd imported window cooler, or a cabinet from the 1970s with a one-off shaft size, can take longer. Say if a previous company told you the part was discontinued. Sometimes that is true. Sometimes it means they did not want the job. A second look is reasonable before you approve a full cabinet or a conversion.

For how those parts fail together, use the diagnosis page. For the seasonal checklist that prevents a lot of these replacements, use startup and winterization.

How scheduling works

1. You send the city, whether the cooler is on the roof, and what it is doing.
2. This desk matches that note to an independent local company that takes that kind of work.
3. They contact you with a window and a price. You can decline.
4. This website does not charge a card and does not take a deposit.

There is no published phone number yet. The form is the request. A fast note is what makes scheduling fast. A promise that a named technician will arrive the same day is not something this site makes. In a June heat wave, everyone calls at once.