ricoh mpc4501 i/h coil

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  • johnny32
    Trusted Tech

    100+ Posts
    • Oct 2007
    • 102
    #1

    ricoh mpc4501 i/h coil

    Hi All
    Anyone know the part no for the thermal fuse within the i/h coil as i have a blown one. Cant find it in parts manual. If not available anyone know of a thermal fuse i can use instead rather than order the whole unit.

    Thanks
    Tags: None
    • skynetto
      Trusted Tech

      250+ Posts
      • Sep 2012
      • 257
      #2
      Re: ricoh mpc4501 i/h coil

      If its not fisically broken place some duct tape on top of it and the remove the tape as fast as you can. Hopefully the thermal fuse will pop back so you can save yourself from bying the whole ih

        Comment

        • Ottawatech
          Technician

          50+ Posts
          • Feb 2015
          • 63
          #3
          Re: ricoh mpc4501 i/h coil

          Yup, the tape method or giving it a quick rap on the backside to pop it back sometimes works.

          Is this the part you're looking for?
          Thermostat.png
          Nothing works quite so well that I can't totally disable it by trying to make it a little better.

            Comment

            • qbert69
              Service Manager

              1,000+ Posts
              • Mar 2013
              • 1152
              #4
              Re: ricoh mpc4501 i/h coil

              Freeze Spray?!...or canned air turned upside down?!

              I believe the thermal "poppers" use a bi-metallic composition where if one of the metals gets hotter, it warps the bi-metal switch to break the circuit. You're just trying to reverse the process!

              Good Luck!




              PS--if you have one of the Katun/Snap-On ratcheting handle magnet screwdrivers, you can smack the thermal switch on the concave part of the handle to reset it!
              Last edited by qbert69; 12-11-2015, 03:39 PM. Reason: PS
              REACH FOR THE STARS!!!
              Konica Minolta Planetariums!
              https://www.konicaminolta.com/planet...gma/index.html

                Comment

                • sandmanmac
                  Field Supervisor

                  Site Contributor
                  2,500+ Posts
                  • Feb 2009
                  • 3979
                  #5
                  Re: ricoh mpc4501 i/h coil

                  Originally posted by qbert69
                  Freeze Spray?!...or canned air turned upside down?!
                  Some interesting solutions here.
                  I Had on just last week. Tossed it in the freezer for several hours, then gave it a good slam (face down) on a table, popped right back out.

                    Comment

                    • ruben
                      The New Guy

                      1,000+ Posts
                      • Oct 2012
                      • 1203
                      #6
                      Re: ricoh mpc4501 i/h coil

                      If the coil's thermal fuse has blown, then the cooling fan is blocked or damaged, and may also need replacing.

                        Comment

                        • Coptech
                          worker drone

                          250+ Posts
                          • Dec 2009
                          • 460
                          #7
                          Re: ricoh mpc4501 i/h coil

                          So far the only ones I have seen blown were from the crap design of the fuser being able to be removed and the customer thinks it is some sort of "pushbutton" that they try to reset when it jams. I have never seen one pop without help on these machines.

                            Comment

                            • slimslob
                              Retired

                              Site Contributor
                              25,000+ Posts
                              • May 2013
                              • 37375
                              #8
                              Re: ricoh mpc4501 i/h coil

                              Originally posted by Coptech
                              So far the only ones I have seen blown were from the crap design of the fuser being able to be removed and the customer thinks it is some sort of "pushbutton" that they try to reset when it jams. I have never seen one pop without help on these machines.
                              Or some one decides that it looks dusty when they have it out and try to dust it off. Tech support told me that once.

                                Comment

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