sharp 2052 h3 00 error

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  • BlueCopy
    Technician
    • Jun 2007
    • 37

    #1

    sharp 2052 h3 00 error

    Sharp H3 00 error - book says fuser overheating reading. Replaced thermister and made 50 copies before H3 code came back on, changed thermostat & bulb, same thing happens, machine comes to ready, makes anywhere from 25 to 50 copies, then H3 code, let machine cool, clear with 14 code and around it goes same problem. Is there something else that could cause this other than the fuser unit??? Ran diagnostics on fan systems, everything ok there. Please help!!!
  • imaginGuru

    #2
    check this

    You mean Sharp SF 2052?
    Perhaps the air vents or filters are dusty and they're blocking the hot air exhaust,
    or maybe the machine is too close a wall or furniture and hot air builds up in the system making H3 coming back.

    Check-by seeing it- that the heat lamp makes its cycle, turning ON and OFF at times, if the heat lamp stays ON all-the-time you have to change the SSR (solid State Relay) , that controls the heater lamp.
    Otherwise you should consider main PWB.
    Also recheck the wiring in the fuser (look up for shorts to ground).

    Good Luck.

    imaginGuru

    Comment

    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22996

      #3
      You anticipated my next suggestion. The fixing fans must run, and in the correct direction. Most fixing fans blow outward. I remember an AR-C160 with the same code that the fixing fan had been installed backwards. In low speed it didn't make that much difference. But in high speed the body heated up quickly.

      Also clean or even remove any ozone filters that may impede air flow.

      Make sure that the thermistor is contacting the heat roller, and that there is correct nipp width. I don't think that its adjustable on any of the Sharps, but excessively worn rollers can produce the same effect.
      If you'd like a serious answer to your request:
      1) demonstrate that you've read the manual
      2) demonstrate that you made some attempt to fix it.
      3) if you're going to ask about jams include the jam code.
      4) if you're going to ask about an error code include the error code.
      5) You are the person onsite. Only you can make observations.

      blackcat: Master Of The Obvious =^..^=

      Comment

      • just a tech
        Service Manager

        250+ Posts
        • Jan 2007
        • 332

        #4
        have had what imaginguru described.. the fuser was heating but not cycling properly causing overheat condition..was relay..good luck..

        Comment

        • BlueCopy
          Technician
          • Jun 2007
          • 37

          #5
          Machine is an SF 2052, where is the relay?

          Where is the SSR and exactly what does it look like? I looked it up in the service manual and could not find a reference to it. I have to go on the service call this AM and will try out all of the suggestions. Thanks for answering so quickly. I have 3 of these machines I service and this is the first real problem I have seen.

          Comment

          • just a tech
            Service Manager

            250+ Posts
            • Jan 2007
            • 332

            #6
            i'm goin by memory here so please forgive me if i'm wrong about the location of the ssr..i believe it's down by the ac power supply board in the lower right corner of rear copier..but it's small (about 1 inch square and about a 1/4 inch thick) ..dark in color..i believe it's black..i know it has male connectors sticking up from it's surface..(believe there are 3 connectors)..sorry i ain't too much help here bud but maybe ya can find what i'm talkin about..good luck..

            Comment

            • BlueCopy
              Technician
              • Jun 2007
              • 37

              #7
              Many Thanks for all the Help! Problem solved!

              Problem was a cold solder in the SSR which was located on the AC PB. Showed it to customer and he was amazed Thanks Again!!!

              Comment

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