Question about Sharp AL 1631 Copier

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AL 1631 Sharp digital copier is flashing the code H4. Was flashing H3 reset it now flashing H4

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  • Rey Garza Sep 18, 2010

    I've already tried that it worked but then it started to give me H4



    ( AL 1631 Sharp digital copier is flashing the code H4. Was flashing H3 reset it now flashing H4 )

  • Rey Garza Sep 21, 2010

    it read H3 When followed the procedure to reset it worked for a while then started showing H4
    reset it again H4 comesback on

  • Rey Garza Sep 22, 2010

    Followed this procedure to reset; Pressed "clear", "exposue mode", "clear", "exposure mode" these 4 keys within 4 seconds, then entered 14, then pressed start, H4 Comes back on after reseting

  • Rey Garza Sep 29, 2010

    thanks

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H4 is an indication of a fusing unit heater problem. Most of the time this is a false code caused by power fluctuations or noise.
To reset the H4 condition, press the following key's in sequence and as quickly as possible (with 4 seconds for the first 4 keys)
Press "C" then the far left key (exposure mode) then the "C" key then the far left again.
So in other words C, far left, C, far left
If done correctly the display should go blank.
Now key in 14 as if you were going to make 14 copies.
Now press the print button.
The machine should reset and the code should be gone.
9 times out of 10 this is a false code that pops up due to power surges or noise.
If the code comes back this means you have a heater lamp or thermal fuse (more common) failure in the fusing area and will need service.
Good Luck and Thank You for using Fixya.

Posted on Sep 22, 2010

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Follow this procedure to reset; once begun procedure must enter within four seconds; Press "clear", "exposue mode", "clear", "exposure mode" these 4 keys within 4 seconds, then enter 14, then press start, should take care the problem.

Posted on Sep 16, 2010

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1 Answer

My copier is flashing the code H4


I have a tip posted here on Fixya that resolves this problem easily.
Here is the link:
http://www.fixya.com/support/r4376849-sharp_al_series_copier_h3_h_3_code_reset

If it works for you then please return here and provide feedback for me that I was helpful.
Thanks

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The H4 code indicates the fuser may have blown the thermistor. It also could be a false error code. Try this series to clear the error and if it returns, then you'll know for sure the fuser is the culprit. To reset press the following buttons:
  1. Press this sequence: CLR-Exposure-CLR-Exposure
  2. The display will go blank
  3. enter "14", press "PRNT"
  4. Press "CLR" several times to exit.
Give that a try and good luck.

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Hello sir;Follow these steps within 4 seconds; press 'clear', "exposure" ,"clear" "exposure" then enter 14 hit print, should be OK.

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The fuser codes are only H2,H3 and H4. To reset , press C, Exposure, C, Exposure.Display goes off enter 14 press print.

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H3 is a heater/fuser problem. Try to reset it by SIM 14. Press Clear , auto exposure, Clear and auto exposure and press copy key. check if H3 has been reset and LED is back to "00".

Oct 29, 2009 | Sharp AL 1631 Copier

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This is called error code which you must specify.For H2,H3,H4, use command 14, for U2 use comm 16.Please specify if neither of this displays.

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SHARP AL-1631 DIGITAL COPIER SHOWS ON THE SCREEN CODE H4 WHEN SWITCHED ON.


Hello sir; You do need following procedure to reset; once begun procedure must enter within four seconds; Press "clear", "exposue mode", "clear", "exposure mode" these 4 keys within 4 seconds, then enter 14, then press start, should take care the problem.

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Try to reset the error code by pressing : C exp1 C exp1 14 start. if the problem still occur then you should change the heater lamp

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Hello sir; that's a simple problem whayever you mention all the parts you replace are not necessary, if you can't reset H4,or H3 then you need to replace "THERMISTOR" that is the device to control the temperature, the parts #RDTCT0128FCZZ.

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