Question about RTO Hunter Psr-22 Pump Start Relay

1 Answer

I have installed a Hunter psr22 pump start relay and connected it to a Hunter src irrigation controller and when I cycle the irrigation controller to manual all stations it will not start the pump. There is pump power in to and out of the relay. The pump will start when relay operated manually. There are only two wires from the relay that have been landed on the controller terminals mv and c.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,083 Answers

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


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to connect the wiring

Need to know what your trying to connect to

Mar 08, 2016 | Orbit Irrigation 57009 WaterMaster Pump...

1 Answer

Hunter node _ Running water all the time

Solenoid Valve set to manual on St Valve to off position

Mar 31, 2013 | Hunter Industries Hunter NODE-100 Single...

2 Answers

Irrigation valve vibrates when opening.

Take apart and clean spring /diaphragm is sticking
Clean unt out

Feb 18, 2013 | Hunter Industries Hunter NODE-100 Single...

1 Answer

How to wire hunter rain clik rain sensor to r8816p101c

1) There are different rain clik model numbers shown in manual
Open 24 volt Rain clik manual:

2) The rain sensor has two wires.
And two additional wires are needed to run from rain sensor to sprinkler timer. For example, buy thermostat wire from local hardware store if wire is not supplied.

3) The rain sensor has a terminal block where wires are connected. .
Open manual above to identify markings on your terminal block.
For example Figure 1 shows SRC model, and with this model number, the rain sensor wires connect to terminals RS and C, and then two wires going to timer connect to terminals RS and and 1.

4) R8816P101C is 208-240Volt 24-hour irrigation timer.
Timer has two separate terminals for attaching rain sensor.

5) Timer power connections have 4 terminals. Do not connect rain sensor to power terminals.
Connect wires from sensor to the two sensor terminals.

6) Timer slide-switch must be set to ON position for rain sensor operation.
Sensor sends continuous 24Volts to irrigation timer.
When it rains, the rain sensor stops sending 24Volts to timer. Timer responds by not turning on power to irrigation pump.
To by-pass rain sensor, move timer slide-switch to off position.

7) Open following link for Intermatic replacement parts:

8) Take a moment and rate answer:
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Sep 05, 2011 | Intermatic R8816P101C -...

1 Answer

Hunter src plus irrigation panel- Getting a PErr message what is that?

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.

Apr 02, 2011 | Garden

1 Answer

Why my PSR-22 pump start relay does not start the pump even the automatic sprinkler controller is at manual run mode?

It could be that the PSR-22 isn't "relaying" the correct amount of power to your pump. If the PSR-22 is making noise (a hum, or buzzing sound), it could be failing.

Try checking the voltage on the PSR-22 to be sure that it's supplying your pump correctly. Be careful - there's a lot of voltage in there, and getting a shock could be fatal.

Jul 11, 2010 | Hunter Pump Start Relay Psr-22 Pump...

1 Answer

My irrigation pump starts runs for a minute or so than stops after several minutes it repeats this cycle. it is a submirsible pump. I have checked the pump start relay and it appears to be functioning. Any...

Of course, the pump start relay is okey. Your submersible pump is either overpumping/ or overloaded. Check the amperage while pumping using a clamp ammeter. Set it at 50 or 100 amp. Note the reading in amperes and compare this with the rated current posted at the pump control. It should not exceed the posted rated current. Assuming it is okey, then, it is overpumping. Your submersible is
drawing more water than what the well produces.
To correct both situations, run the submersible pump
with your gate valve at full close position, and slowly
open the gate valve, until the pump runs smoothly.
Try it with the gate valve 1/4 open. Count the number of turns to get it full close from a full open position.
Divide the number of turns by 4, and the result is the
number of turns to open for you get 1/4 open valve.
Just send your e-mail for further assistance. God bless u.

Oct 26, 2009 | Plumbing

1 Answer

Hunter sprinklers vs rainbow sprinklers

I work with both Hunter and Rainbird irrigation components. Both companies have good products. But, I prefer Hunter for the sprinkler heads and Rainbird for the controllers and valves.

Oct 30, 2008 | Ace Hardware Hunter& Low Profile III...

Not finding what you are looking for?
RTO Hunter Psr-22 Pump Start Relay Logo

Related Topics:

490 people viewed this question

Ask a Question

Usually answered in minutes!

Top RTO Garden Experts

John Trevino

Level 3 Expert

1388 Answers

Joseph Mueller
Joseph Mueller

Level 2 Expert

344 Answers


Level 2 Expert

64 Answers

Are you a RTO Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides