Potential relay operation and testing.
Potential relay troubleshooting.
A simple ohmmeter is all that is needed to troubleshoot a potential relay.
A simple ohmmeter is all that is needed to troubleshoot a potential relay.
Knowing the sequence of operation for this type of starting relay can help you diagnose confirm or rule out certain service problems.
Whenever possible the model number on the old relay should be used when ordering a new relay.
The above procedure simply mimics the action of the potential relay.
The resistance should read close to zero since there are normally closed contacts between terminals 1 and 2.
It s probably a bad potential relay.
Troubleshooting of a potential relay can be done with an ohmmeter.
My paperback and e book.
After taking all of the connecting wires off of the potential relay measure the resistance across the 1 and 2 terminals.
This video explains the terminal arrangement of a potential relay how to wire it up and how it works.
The coil is wired between terminals 2 and 5 with the contacts between terminals 1 and 2.
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.
Potential starting relays consist of a high resistance coil and a set of normally closed contacts.
I ve used this procedure many times.
The relay coil is across terminals 2 and 5 while the relay contacts are across terminals 1 and 2.
Remember short out the start cap used above.
I show the.
The relay does the same thing.