Do not forget to read the manufacturers instructions. The motor in a swamp cooler turns a blower which moves air in from outside the cooler through evaporative pads and out through a vent or ducting into the living area.

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Swamp cooler pump wiring diagram. This diagram is a basic schematic and is not intended to represent all methods of installation because of various cord plug and pump configurations. All about the swamp swamp cooler maintenance swamp cooler roof installation the best time to rough in your swamp cooler wiring and water line for your new cooler is after the holes are cut through the roof and ceiling but before the ductwork is installed. When voltage is applied to the low side the windings in the motor it will turn the motor slower. A six position rotary switch has a position for off low speed fan high speed fan low speed fan with pump high speed fan with pump and pump only. Is it getting electricity. Here is a swamp cooler blower motor with the leads for hi low and common labeled h l and c.
In some states you may be asked to mount a residual current device to insure the coolers safe operation. Each component should be set and connected with different parts in specific manner. Here are the steps you should follow in order to install the swamp cooler. If your swamp cooler only has one fan speed wire the fan to terminal 1 the black wire operates the motors high speed. See evaporative cooler installation instructions and motor and pump instructions for proper motor and pump wiring. Step 1check local requirements.
I have a brother who works on these all the time. You can check the pump with a dvom a little electrical tester you get from home depot or harb. Swamp cooler wiring color codes. Swamp cooler switch wiring diagram swamp cooler switch wiring diagram every electrical arrangement consists of various distinct components. He lives in albuquerque. Be sure motor pump and cooler are properly grounded.
The manufacturers of blower motors do not subscribe to a universal color code for their wiring so making inquiries of the blower motor manufacturers customer care personnel may. Otherwise the structure will not function as it ought to be. Go through the local requirements for the wiring of electrical devices. When voltage is applied to the high side the windings in the motor will turn it faster. Ductwork swamp cooler main page. Does the pump make a humming noise when turned on.
Red low.