Potential Relay Troubleshooting

The relay does the same thing. The above procedure simply mimics the action of the potential relay. A simple ohmmeter is all that is needed to troubleshoot a potential relay.

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Operating And Troubleshooting Potential Or Voltage Relays 2018 03 05 Achrnews

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The start cap is momentarily applied to the circuit then quickly disengaged.

Potential relay troubleshooting.

Knowing the sequence of operation for this type of starting relay can help you diagnose confirm or rule out certain service problems. The resistance should read close to zero since there are normally closed contacts between terminals 1 and 2. A simple ohmmeter is all that is needed to troubleshoot a potential relay. All you have to do is touch the ends of the.

I ve used this procedure many times. Replacement relays can be cross referenced for different manufacturers using convenient tables via the internet. Troubleshooting of a potential relay can be done with an ohmmeter. Potential relay operation and testing.

I show the. The coil is wired between terminals 2 and 5 with the contacts between terminals 1 and 2. After taking all of the connecting wires off of the potential relay measure the resistance across the 1 and 2 terminals. My paperback and e book.

It s probably a bad potential relay. Remember short out the start cap used above. When used with a run capacitor a 15 000 ohm to 18 000 ohm 2 w bleed resistor should be attached to the start capacitor to prevent possible arcing when the relay contacts open. The relay coil is across terminals 2 and 5 while the relay contacts are across terminals 1 and 2.

Whenever possible the model number on the old relay should be used when ordering a new relay. Potential starting relays consist of a high resistance coil and a set of normally closed contacts. This video explains the terminal arrangement of a potential relay how to wire it up and how it works.