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11

Monday, September 3rd 2018, 10:51am

Just to double check, I found the modules online and the part number is PCM300. Is that correct? I'm fixing to go and check it with a voltage meter to make sure I'm getting correct voltage.

12

Monday, September 3rd 2018, 11:58am

I tested the voltage to the 2 stations that aren't working and station 5 reads 1.0 volts and station 6 reads 1.8 volts. So would replacing the module fix this or do I need to replace the controller?

mrfixit

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Posts: 2,571

Location: USA

13

Monday, September 3rd 2018, 1:50pm

Swap the two modules and see.

14

Monday, September 3rd 2018, 4:06pm

I replaced the modules and the other one worked fine. So I'm going to order another module online, Thanks for all your help!

mrfixit

Moderator

Posts: 2,571

Location: USA

15

Monday, September 3rd 2018, 4:23pm

Good deals and you're welcome.
There's one thing I can't remember if the old modules work in the new controllers or or the new modules work in the old controllers. I think the old modules work in the newer controllers cause I've done that a few times.
I'm not sure if the new modules will work in the older Pro-C. You may want to ask them or buy an old style on Ebay.

16

Monday, September 3rd 2018, 6:03pm

Ok thanks for the heads up on that. It's a 2006 model module so guessing that's the same model on the controller.

mrfixit

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Location: USA

17

Monday, September 3rd 2018, 9:04pm

New one's are black. Old one's are grey.

Wet_Boots

Supreme Member

Posts: 5,376

Location: Metro NYC

18

Wednesday, September 5th 2018, 1:24pm

.........I'm not sure if the new modules will work in the older Pro-C..........
New modules are backwards-compatible. There was a counterfeit Pro-C that appeared when the old grey modules were in use. Altering the design of the Pro-C kept counterfeit modules from being used in current-production Hunter controllers.

mrfixit

Moderator

Posts: 2,571

Location: USA

19

Wednesday, September 5th 2018, 9:37pm

.........I'm not sure if the new modules will work in the older Pro-C..........
New modules are backwards-compatible. There was a counterfeit Pro-C that appeared when the old grey modules were in use. Altering the design of the Pro-C kept counterfeit modules from being used in current-production Hunter controllers.


Then I must have put new modules in the old controllers. Getting hard to remember. Been quite a few years since I did that. I still have some old modules. I'll give it a try one of these days on a new controller.
I have one of those knock offs too. Irrigation Direct.

EricJRW

New Member

20

Tuesday, November 9th 2021, 11:07am

Symptoms of a bad PCM-300 module (was "How to test a Hunter Pro C?")

I found this thread very helpful: Solenoid Making Clicking noise ,as it was my exact problem. I was going to reply there, but I couldn't, because "Attention: The last reply to this post was 1160 days ago. The thread may already be out of date. Please consider creating a new thread."

After swapping modules, I thought I had a controller problem, since stations were "disappearing", but even this was a symptom of the bad PCM-300 module. Here's my full story:

My solenoids (Station 7 & 8 )were "clicking", and the valves were not opening, so I swapped the last two PCM-300 modules with each other. The problem went away and all seemed to be working well.

I am using only using Station 12 on the third PCM-300.

Since I know I have some kind of a problem, either with the third module, or the third slot, I ordered another module. It's a good thing I did, as I noticed station 12 was not coming on anymore. I also noticed that when I tried to run 12 manually, that stations 10, 11 and 12 "disappeared " from the controller (a Hunter Proc C). If I pulled the 3rd module out, and put it back in, 10/11/12 were back, but would later disappear again. Station 12 is used for a water feature, so being without is no big deal, short term.

New module arrived, and it, and the system, are working fine.

So I just wanted to say thank you and I hope my experience may help others.

Sincerely, Eric

PS. I do have a valve on station 9, but do not use it all the time. Only manually when needed.

Edit: Well this post did add to the old thread. Obviously I don't know this board very well.

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