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Rotary Selector Problem / Diagnosis

Etowah
T

trinityspeedwash

New member
I have a 6 bay self-serve and I am new to the car wash business and I am looking for some help diagnosing an issue.

In all of the bays, when I put the selector on "Spot Free Rinse", in the control room nothing happens. That is, no pump is running, no water comes out of the high-pressure.

Selecting just "Rinse" works without problem, but the "Spot Free" selector seems to be non-functional. This is the same behavior across all the bays, so I am assuming it is something that comes with the Spot Free rinse.

I have attached a couple of pictures of the control system. I am pretty good with a multi-meter, but I am not sure where to start.

If anyone could help point out where to start/what to check, I would appreciate it. Can also post more pictures if that is helpful.
 

Attachments

Thats a coleman supersaver panel. The PLC in the upper left controls your spot free rinse. Input 0 is on and the rest of the input/outputs are off. That is a good thing and the way it is supposed to be when no bays are being used. Makes me think you have an air locked pump. Do this pull off the discharge hose from your spot free pump and run spot free in a bay to see if it produces water. It will get all over your floor. If that works put the hose back on and you should be god. Start with that. If it doesn't work let me know.
 
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Whenever I've had a single item failure across all bays it's been (in this order):
* a bad contactor
* a bad starter motor
* a bad motor
* wiring issue
* fluid absence or obstruction (since you don't hear anything in the equipment room you can strike this one)
 
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Check SFR tank low level float switch.

Check the SFR system fuse, it's one of the fuses below the 6th bay fuse, I think the one directly below it but not 100% sure.
 
edredtop said:
Whenever I've had a single item failure across all bays it's been (in this order):
* a bad contactor
* a bad starter motor
* a bad motor
* wiring issue
* fluid absence or obstruction (since you don't hear anything in the equipment room you can strike this one)
Click to expand...
Agreed. Read over the part he mentioned no pump is running.
 
Here is the input/output chart. If your low level float was not working you would have a light on input 1. You do not. Thats a good thing. If the fuse was bad the terminal block would light up with a red indicator light. Does not look like thats blown either from the picture however you could be missing the fuse in that block. Check that fuse block like Greg said. If its good then start a bay and see if you have 24v on the contactor coil and it's sucking in. If it does then test your incoming and outgoing voltage through the contactor.
 

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Blanco said:
Agreed. Read over the part he mentioned no pump is running.
Click to expand...
Yessir
He said no bay makes the spot free work, but "rinse" does (work).
I'm ( possibly incorrectly) assuming a separate pump runs the spot free than the HP rinse?
 
edredtop said:
Yessir
He said no bay makes the spot free work, but "rinse" does.
I'm ( possibly incorrectly) assuming a separate pump runs the spot free than the HP rinse?
Click to expand...

Yes spot free is ran by a separate delivery pump. I meant "read" as in past tense. I read. I forgot the "I" lol
 
Why do manufacturers do this??? I know why, but seriously?! Install proprietary controllers that could easily have been accomplished using a relay for each bay and a motor starter! I have a Dultimier SFR that uses relays and a motor starter for the main pump and a simple timer to flush the membrane...If I had a proprietary system like that, it would probably end up in the scrap bucket like most of my original Mark VII pump stand! Sorry no, help here....Other than planting the seed that it can be changed quite easily for the better!
 
Another example would be like this. Its the device on the left side of the enclosure. It will have larger leads in the top and bottom (Lines and Loads) and smaller wires for the coil contacts. It functions as an electronic switch to turn on/off your load (motor). This is what controls my Tri-Foam system.

Omron_1.jpg
 
Etowah
Blanco said:
Foam Brush
Click to expand...
No I found the Foam brush MX-8 it has whites going to it. There's another MX in the right corner with brown wires going to it. I like how they all have the same colored wires going to the different MX-8 controllers.
 
Randy said:
No I found the Foam brush MX-8 it has whites going to it. There's another MX in the right corner with brown wires going to it. I like how they all have the same colored wires going to the different MX-8 controllers.
Click to expand...
Correct. Didn’t see that one. Foam brush is in the middle of the cabinet. Tri foam and Tire cleaner are up top. I have no clue what the one mounted on the side would be for.
 
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