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My sharp ac displays h3? - Sharp Office Equipment & Supplies

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Sharp copier ar-336 error h3-00

H3 00 Fusing section high temperature trouble

Detail: The fusing temperature exceeds 242°C.
(An input voltage of 0.27V or above is

Cause: thermistor trouble
Control PWB trouble
Fusing section connector disconnection
AC power trouble

Check and remedy: Use DIAG (SIM5-2) to check the heater lamp
Blinking operation.
If the heater lamp blinks normally:
Check the thermistor and its harness.
Check the thermistor input circuit in the
control PWB.
If the heater lamp keep lighting:
Check the AC PWB and the lamp control
circuit in the control PWB.
Use DIAG (SIM14) to cancel the trouble

Feb 10, 2011 | Sharp AR-M237 Copier


Sharp AL Series Copier H3 H-3 code reset procedure

To reset the H3 condition on just about any Sharp AL series copier 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
Some model's use 2 other initial codes, so you may need to use one of these 2 alternate codes to get your display to go blank. The rest of the procedure is the same.
Alternate codes are: #, * , C, * or pound,star,C,star and also
#, Interupt, C, Interupt
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.
This works on the following models:
Sharp AL1000, Sharp AL1010, Sharp AL1020, Sharp AL1041, Sharp AL1200, Sharp AL1215, Sharp AL1220, Sharp AL1250, Sharp AL1251, Sharp AL1340, Sharp AL1451, Sharp AL1520, Sharp AL1521, Sharp AL1530CS, Sharp AL1540CS, Sharp AL1551, Sharp AL1551CS, Sharp AL1631, Sharp AL1641CS, Sharp AL1651, Sharp AL1651CS, Sharp AL1655CS, Sharp AL1661, Sharp AL1661CS

on Mar 20, 2010 | Office Equipment & Supplies

1 Answer

Pleas can you help, when i turn on my Sharp Ar 337 i get this all the time earra cord H3-00. can you tell me how i can solve the problem .

H3: Heat roller high temperature detection
  • Thermister defective
  • Control PWB defective
  • Improper connection of fusing unit connector
  • AC power supply defective
check and remedy:-
Check heater lamp operation with SIM5-2.
If lamp blinks properly:
Check thermister and its harness.
Check thermister input circuit of control PWB.
If lamp lights and stays lit:
Check lamp control circuits of AC
PWB and control PWB.
Clear the trouble with SIM14.

Jan 23, 2011 | Sharp AR-M237 Copier

1 Answer

Sharp ar 287 code h3-00

H3-00: Heat roller high temperature detection
Check and remedy:-
Check heater lamp operation with
If lamp blinks properly:
Check thermistor and its harness.
Check thermistor input circuit of
control PWB.
If lamp lights and stays lit:
Check lamp control circuits of AC
PWB and control PWB.
Clear the trouble with SIM14.

Jan 06, 2011 | Sharp AR-M237 Copier

2 Answers

I have sharp mx 2700 .mechine is working but no display in the screen.i can make a copy .no display in lcd screen

Most likely the back light is blown out....try shining a flashlight down on to the displat and you might be able to see the display but this will reqire a qualified tech to repair

Mar 22, 2010 | Sharp MX-2300N Color Copier

1 Answer

Sharp AL-1631 Fuser Unit

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

Nov 05, 2009 | Sharp AL 1631 Copier

1 Answer

Getting H3 error message Sharp AL 1631 copier

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

2 Answers

As the bag of a sharp 2114 error h3

SHARP - 2114 - L8-1 - zero cross signal error
SHARP - 2114 - L8-3 - auto-exposure sensor malfunction
SHARP - 2114 - H2-0 - Fusing unit temperature error
SHARP - 2114 - H3-0 - Overheated fusing unit
SHARP - 2114 - H4-0 - The fusing unit doesn't heat up
SHARP - 2114 - U2-1 - EPROM error

May 29, 2009 | Sharp AR-5316 Advanced Digital Imager...

3 Answers


You can try this it works for older Sharp models.
  1. Press # key
  2. Press * key
  3. Press C key
  4. Press * key
  5. your display will stop flashing H 3, if not re-enter the keys again, some machines are temparmental, when it goes blank
  6. enter 14
  7. press the start key then turn it off and back on, if it comes back with an h code there is a problem with the heat section and will need a service call and probably parts.
  8. good luck

Apr 21, 2009 | Sharp AR-M237 Copier

1 Answer

Sharp AL-1631 overheats after replacement of fuser and fans

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.

Feb 12, 2009 | Sharp AL 1631 Copier

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