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Need a wiring diagram for a reznor us125f heater ?

Looking for a wiring diagram for a reznor us125f heater ?

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  • Michael Hamrick
    Michael Hamrick Dec 30, 2012

    can't get the website to connect www.rezspec.com

  • kelldogg40
    kelldogg40 Dec 30, 2012

    NIETHER COULD I. TRY AGAIN LATER I SUPPOSE. WHAT'S THE PROBLEM WITH REZNOR? WILL IT HEAT?

  • Michael Hamrick
    Michael Hamrick Dec 30, 2012

    I think I dont have it wired right . The fan blows and the pilot light lights thats about it ./

  • kelldogg40
    kelldogg40 Dec 30, 2012

    SORRY. I'VE BEEN ADDRESSING SO MANY PROBLEMS I FORGOT WHAT YOUR'S WAS, YOUR PILOT WOULD NOT STAY LIT CORRECT? THE THERMOCOUPLE IS WHAT SENSES THE FLAME OF THE PILOT, THEREFORE TELLING THE GAS VALVE TO OPEN SENDING THE PROPER AMOUNT OF GAS AT THE CORRECT PRESSURE IN TURN FIRING OFF THE BURNERS. IT WON'T CAUSE THE PILOT NOT TO STAY LIT. IF THE PILOT ASSEMBLY APPEARS TO BE IN GOOD CONDITION, & FREE FROM OBSTRUCTIONS, WHEN LIT THE FLAME OF PILOT SHOULD ENGULF THE THERMOCOUPLE IF NOT THERE MUST BE SOMETHING PARTIALLY BLOCKING THE PATH FROM THE GAS VALVE TO THE PILOT. ALSO IN RARE CASES THE TOP TO THE FLUE GOING OUT OF THE BUILDING COME OFF ALLOWING GUSTS OF AIR TO ENTER THROUGH THE EXHAUST PIPE BLOWING THE PILOT FLAME OUT. HOPE THAT HELPED, GOOD LUCK!

  • kelldogg40
    kelldogg40 Dec 30, 2012

    DO YOU MEAN THE DRAFT INDUCER MOTOR FOR THE EXHAUST, OR THE MAIN BLOWER MOTOR FOR AIR CIRCULATION?

  • Michael Hamrick
    Michael Hamrick Dec 30, 2012

    the main blower works fine and the pilot lit is lit

  • kelldogg40
    kelldogg40 Dec 30, 2012

    THE MAIN BLOWER SHOULD NOT COME ON UNTIL THE MAIN BURNERS HAVE LIT. THE ONLY MOTOR THAT SHOULD BE RUNNING IS THE DRAFT INDUCER MOTOR, WICH IN TURN CLOSES THE PRESSURE SWITCH ALLOWING THE GAS VALVE TO OPEN UP FOR THE MAIN BURNERS. IF PRESSURE SWITCH DOESN'T OPEN IT WILL NEVER TRY TO FIRE UP.

  • Michael Hamrick
    Michael Hamrick Jan 01, 2013

    got a wiring diagram here

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I'LL SEE WHAT I CAN FIND FOR YOU.

Posted on Dec 30, 2012

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SOURCE: need a manual for Reznor unit heater UA 40

Reznors website is: www.rezspec.com
go to their home page and click on the "manuals & media" tab. You will find the folders on that page for installation,parts,and servce manuals. After you find the manual you are looking for you can download it for free. Good luck!!

Posted on Nov 20, 2009

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Brian, it is a very simple task to perform but for a novice YOU MUST HAVE THE POWER OFF !!!!!!

At Harbor Freight you can buy a cheap digital multimeter for about five bucks. After turning off the power, remove one wire from the thermodisc and use the resistance scale to check continuity. If it reads no continuity, the switch is OPEN and bad. If it reads continuity it is CLOSED and is good.

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https://www.rezspec.com/index.php?module=000000000012&pageid=000000000014&mod_files[currpos]=000000000029&mod_search[text]=RDF1&mod_search[skipsearch]=true

All lines need to be one one.

Should this be a pereishable URL, just enter "RDF1" into the site search window.
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go to their home page and click on the "manuals & media" tab. You will find the folders on that page for installation,parts,and servce manuals. After you find the manual you are looking for you can download it for free. Good luck!!

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Reznor model# f125 pilot won't stay lit. i


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