Question about RTO Hunter Psr-22 Pump Start Relay
So the mv and c are supplying power to the transformer/relay and out of it, but the pump won't start until the relay is forced.
I'm thinking the relay contacts are oxidized, and need to be cleaned. When they have oxidation, current goes up, and voltage might appear ok. If any start capacitors are in the circuit, they can be faulty, breaking down under a load, while reading ok. I haven't heard of any caps in these systems, but just in case.
The following blog may help you- it's about different controller situations:
Hunter's website has some things to check concerning the controller:
Looks like it could be microprocessor lockup. It's quite a process, but here's what they say is the fix:
Good luck, hope this helps, and thanks for using FixYa.
Posted on Sep 14, 2010
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Posted on Jan 02, 2017
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A "P Err" readout means there is an overload in the pump/master valve circuit. A readout of "1 Err" means there is an overload in station No. 1, while "2 Err" means an overload in station No. 2 and so on, depending on the number of total stations being operated by the controller.
An overload occurs when the wiring circuit is requiring more than .56 amps of current. This overload will typically occur when the field wiring or valve solenoid is shorted, or if the field wiring is a smaller gauge than required for the application and/or distance.
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