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  #11  
Old 15-04-2018, 10:34 AM
dubversion dubversion is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Hello all,

an update:

We diconnected the FAV upstream, to see if the main pump would flow on SYS. It did just fine, so everything seems to work up to the FAV.

We disconnected the FAV power supply and connected a (charged) car battery (12V) directory to the FAV power pins , while using the SYS jumper. No spray: so the FAV is broken. To be sure, we reversed the connected as well, making sure that we feed the current to the right pole.

We then hooked up the fav power supply again and see if under SYS we would notice a power potential difference over the two connectors while connected to the FAV . We did NOT notice a potential, which we found odd.

We then tried it with the wire diconnected from the FAV. Again, no potential measures, as if there is no power from the controller.

In the last test, we disconnected the FAV power supply and disconnected the FAV input to the controller, and put the battery on the FAV side on the wire. Then we tried to measure a potential on the FAV input connecter on the controller side touching the copper connectors on the RJ11. We noticed a potential equal to that supplied by the battery.

Our conclusions:

- FAV is broken
- FAV wiring is not broken
- Possible issue with the power supply from the controller to the FAV as we were unable to record a 12V potential over the wire when on SYS.


Richard, i will send the FAV unit to you. Can you perhaps explain why we could not measure 12V out of the controller ? Is this some safety measure ? Is the controller talking to the FAV and if it doesn't get the right signal it does not put 12V on it ?

I'll use this address: http://www.aquamist-direct.com/contact-us/

Kind regards,
Jeroen

Last edited by dubversion; 15-04-2018 at 11:38 AM.
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  #12  
Old 15-04-2018, 11:22 AM
Richard L Richard L is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

There are two conditions for the FAV to open:
1. the mechanical movement of the internal piston
2. The coil that actuate the piston.

You must test the FAV as follows:
3. Coil has have a resistance of 12 ohm
4. Test the FAV with a separate 12V supply. You should hear a click everytime the
5. Once this is established, you can plug the FAV back into the system.
6. Use the SYS umper
7. Only then if the FAV does not open, it could be the following:
a. Wire inside the Red harness plug may be severed or came loose
b. Only after all the above step, you can confidently establsihed the controller is not sending a full 12V to the FAV.

There is not need to any driving to establish this.
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  #13  
Old 15-04-2018, 12:01 PM
Richard L Richard L is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

procedure for testing the flow sensor:

1. Unscrew the sensor tube from the FAV, spanner on the hex flat nearest to FAV..
2. You should hear a whirling sound when you blow gently through the sensor tube.
3. Clip in yellow harness and observe the dash gauge, you might need a mirror of a second person to observe the gauge (done at pre-crank key position)
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  #14  
Old 15-04-2018, 12:08 PM
dubversion dubversion is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Hi Richard,

Your sentence at point (4) is not complete.

We put the 12V power supply (car battery) directly to the FAV, connected the meth line (upstream only of course) and jumper on SYS. No spray noticed downstream the FAV, i decoupled the line to the jets so it's easy to see flow (into a bottle). It was noisy, so i'm not sure if the FAV itself was making any noise.

So i just did another test here behind my desk wit the FAV in front of me. I connect 12V (600 mA) to it, and the only click i can here is at the moment of connection / disconnection , it seems to be the noise of the visible small spark. The unit itself does not make any (clicking) noise.

Let me know the next step please, send FAV to you ?


Kind regards,
Jeroen

Last edited by dubversion; 15-04-2018 at 12:15 PM.
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  #15  
Old 15-04-2018, 12:13 PM
dubversion dubversion is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Why should i test the flow sensor ? There is no flow to be sensed
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  #16  
Old 15-04-2018, 12:29 PM
Richard L Richard L is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Flow sensor is the next FAV test after the FAV is tested OK.

The FAV should draw 1A with 12V, so send the FAV and Flow sensor assembly back to me for closer examination.
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  #17  
Old 15-04-2018, 12:43 PM
dubversion dubversion is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Hi Richard,

okay. Can i use this address ?

http://www.aquamist-direct.com/contact-us/
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  #18  
Old 15-04-2018, 12:59 PM
Richard L Richard L is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

yes.. This is the correct address.
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  #19  
Old 15-04-2018, 03:29 PM
dubversion dubversion is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

Hi Richard,

DHL insist on a house number, what can i write ?
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  #20  
Old 15-04-2018, 04:00 PM
Richard L Richard L is offline
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Default Re: Out of winterstorage: gauge is not showing spray bars

59 Bolney Avenue
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