Know Your Voltage
All too often customers will purchase pool or sprinkler pumps and motors over the counter from us and re-install them with the wrong voltage selected. The majority of the motors we sell are switchable from 115v to 230v. Installing the motor with the wrong voltage selected can damage the motor and will at the least cause the motor to run hot and shut off by the internal thermal protector. Some customers assume that the voltage is either 115 or 230 and make the wrong determination. Checking the voltage can be done in one of several ways. The easiest way to tell the voltage is to inspect the motor that is being replaced. A wiring diagram is usually imprinted on a sticker on the casing. Determine the voltage from this wiring diagram. We do inspect this when we replace existing motors and set new equipment accordingly. On some newer motor models a switch is located behind the end bell that will show you. If by chance the diagram is faded or damaged another way is to look at the time clock or controller. Again, most of these devices have a rating tag or plate that will tell you how many volts the internal clock runs on. If the rating is 110/115v then the motor should be set to run on the same voltage. Conversely, if the clock motor runs on 220/230v set the motor accordingly. One can also check the circuit breaker that controls the motor/pump. A 115v breaker is usually a single breaker and a 220v breaker is normally a double breaker. I have seen however that wiring to breakers is somewhat dependant on who installed the breaker and the wiring and this method should only be relied on if you are sure of the wiring to that particular breaker. One final method is to make use of a voltage meter. Only persons with a working knowledge of this device should attempt to use this method. Set your meter accordingly to the voltage you which to check and set the motor voltage. A final note; permanent damage can be caused to the motor if you run it on the wrong voltage for an extended period of time and thus void any warranty that may have come with the motor. We are always happy to assist you in any way we can to make sure you re-install your equipment properly.







