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Thread: Help : Wiring a STR-135L22 Fan Controller

  1. #1

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    Default Help : Wiring a STR-135L22 Fan Controller

    Hi

    I am in need of electrical help again!

    I have a new fan controller that I am trying to wire up.

    It has L N L N U terminals.

    I have connected live to L and neutral to N. However, I do not get the LED on the front to light up.

    What am I doing wrong?

    I have the fan connected Live to U and neutral to N.

    Anyone any experience with these fan controllers?

    I can see similar online - but they have different terminals :-(

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    Does the fan work ?? If not, check the fuses, one in the plug (assuming you put a plug on it), other internal one...led should come on at No.1, have you tried the rest ?

    Occasionally, No.1 is not connected

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    Default

    Hi

    Thanks for the reply.

    The fan did work - I did not test it before cutting the plug off Doh.

    I have tested more than setting 1 - no LED on any setting.

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    Are we sure we know what the L & N terminals are for?

    IE is one mains & one fan, if so, which way around?
    "If you've got nothing to hide, you've got nothing to fear"

    (Joseph Goebbels)

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    Hopefully a few pics will help

    I checked the fan and it works. I used the working plug to re-wire the fan controller, to remove all doubt.

    Click image for larger version. 

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    Click image for larger version. 

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    Where does that earth from the fan go to ?? And why is there NO earth on your incoming mains ??

    Have you checked that internal fuse ?
    Last edited by AND; 07-03-19 at 04:57 PM.

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    Quote Originally Posted by AND View Post
    Where does that earth from the fan go to ?? And why is there NO earth on your incoming mains ??

    Have you checked that internal fuse ?
    The earth goes nowhere. I have clipped it off at the base of the outer flex now.

    The wiring diagram did not have an earth - so I removed the incoming earth as well. (I thought, being German, there would be only live and neutral?)

    I pulled the internal fuse out and reset it. I have no means to test it otherwise.

    I knew the knowledgable people here would be able to verify my wonky wiring! Guess I will have to contact the seller.

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    Metal enclosures require an earth to avoid electrocution if there is a wiring fault, incoming mains supply needs to come with an earth and be connected to the metal box even if fan doesn't have one

    The internal fuse should be a 20mm glass one, you can sometimes see if its popped in a big way, glass will be blackened...failing that buy another of the same rating (3A will be fine for your fan), they're cheap

    Its possible previous owner overloaded it and blew the fuse which would explain the no led. There's not much else that can fail in them tbf

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    Quote Originally Posted by M_C View Post
    Are we sure we know what the L & N terminals are for?

    IE is one mains & one fan, if so, which way around?
    We are...standard fan controller...fitted loads of them

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    Thanks again AND

    I got this controller new from fleabay. Not cheap either!

    I have rewired to use the earth :-

    Click image for larger version. 

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    Will look for another fuse tomorrow, to try and avoid having to return it. Looks smaller than usual - not glass like though :-)

    Click image for larger version. 

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    Quote Originally Posted by AND View Post
    We are...standard fan controller...fitted loads of them
    What's the L1 for


    in a green and pleasant land

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    Quote Originally Posted by Jumper114 View Post

    Click image for larger version. 

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    Why are you wired to N & U rather than L1 & N ?

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    I thought L1 was for 3 wire fans????

    I am an electrical numpty and the instructions are non existent. Doh. :-)

    I now see why I spent way more on a rhino controller! Plug and play.

    This was my best efforts based off looking round web. No LED even with the fan not wired in makes me wonder though!

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    Default

    Swapped the fan live to L1 - the same.

    Where should I look for a new fuse? Hardware store?

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    Quote Originally Posted by British green View Post
    What's the L1 for


    in a green and pleasant land
    L1 & the linked N are a 230v pass through, say for another extractor & controller if you have a big hood. These types of controllers are usually fitted in restaraunts & take aways

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    Quote Originally Posted by M_C View Post
    Why are you wired to N & U rather than L1 & N ?
    See above post

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    Quote Originally Posted by Jumper114 View Post
    Thanks again AND

    I got this controller new from fleabay. Not cheap either!

    I have rewired to use the earth :-

    Click image for larger version. 

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Views:	27 
Size:	77.3 KB 
ID:	370530

    Will look for another fuse tomorrow, to try and avoid having to return it. Looks smaller than usual - not glass like though :-)

    Click image for larger version. 

Name:	fuse.jpg 
Views:	21 
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    Much better

    You can check fuse with a 9v battery & your tongue...fuse to one terminal, tongue to other end of fuse and other terminal...If your eyeballs light up, fuse is good

    Maybe ceramic, no difference between that and glass in terms of fuse function. You need a 20mm 3A Fast Acting

    Just had a thought...If you have wired the live of the fan to L1, this should have run the fan on full...If it didn't, that output doesn't go throught the variac just the fuse so fuse popped is a high possibilty
    Last edited by AND; 07-03-19 at 08:18 PM.

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    Quote Originally Posted by AND View Post
    L1 & the linked N are a 230v pass through, say for another extractor & controller if you have a big hood. These types of controllers are usually fitted in restaraunts & take aways
    A old controller I used a think it was Honeywell L1 was a ramped up speed


    in a green and pleasant land

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    Many thanks AND and British Green.

    As predicted by AND - the unit had arrived new but with a blown fuse.

    Fortunately the local hardware shop had a pack of 20mm 3amp fuses.

    All running now. Just need to build a box for the fan.

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    Quote Originally Posted by Jumper114 View Post
    Many thanks AND and British Green.

    As predicted by AND - the unit had arrived new but with a blown fuse.

    Fortunately the local hardware shop had a pack of 20mm 3amp fuses.

    All running now. Just need to build a box for the fan.
    Glad its sorted mate, happy to help

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