Replacing Hunter Pro C


#1

Hey guys!

Looking for help on replacing my old Hunter with the Rachio Gen 2. I don’t want to use my existing rain sensor so I can get rid of that and the power wires. However the red white and blue wires not sure what those are for?


#2

Red / White and Blue cables are for Hunter remote (you will not need it and can disregard these wires as well)


#3

Thanks Gene!

So all I’ll need is the COM and Zone wires and the rest I can scrap right?


#4

Looks this way, should be a pretty straight forward setup.


#5

@BankOmAn - it looks like there may be a Master Valve or Pump start relay in the system as I see a wire connected to the P/M terminal on the Hunter. So that wire will be needed also (in addition to the common and zones), along with configuring the Rachio app to turn that on.


#6

I recently replaced my Hunter Pro C with a Rachio Gen 2, but I chose to keep the rain sensor. Any particular reason you prefer to remove it?


#7

@DLane at first I thought so too (about the master valve), but unless the loose red wire was connected to the bottom terminal, there isn’t actually anything connected to P/M terminal as far as I can see (from this perspective, wire connected to zone 1 falsely appears to line up with the bottom P/M label).


#8

@Gene, good eye. Yes, the perspective threw me off. I started counting down the wires from the top and ran out at 1.


#9

The rain sensor is missing when I had my fence replaced so just figured I would scrap it all together.


#10

The other loose red wires were from previous zones that were removed when we put the pool in.


#11

When looking closer I noticed a black wire not hooked up. Guess I don’t need it if it wasn’t hooked up already?


#12

@BankOmAn - if all the zones that are needed are running now, then no the black wire isn’t needed.

I’d step through each zone on the existing Hunter Pro C, for just a minute, so that one knows they are in a known good and working state before switching over. This way any problems can be identified and fixed before too many changes are introduced.


#13

Thanks everyone for the help!

Everything is hooked up and running. Had a hard time confirming my drip lines were on so just assuming they’re working for the time being.

Thanks again!!


#14

:tada: @BankOmAn Congrats on the new controller, and welcome to the community!


#15

I have similar questions, but haven’t seen comments regarding the common wire. I have a 16 zone system replacing my Hunter Pro C. The Pro only has one common. Do I need a common on both connection blocks or just before Zone 1


#16

@usn68 - any of the four C(ommon) terminals on the Rachio 16 zone system can be used. Doesn’t matter which one.