Question about GE Quiet-Aire Ductless Split System Air Conditioner AS1CD12AA0/AS0CD12AA0

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Ramsond a/c trouble code E7

E7 in the maintenance book stands for external feedback fail.
what is the external feedback?

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  • dkqueen May 12, 2009

    How do you solve this error code?

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Indoor/outdoor communication, you can check the connecting cable may have damage.

Posted on Mar 20, 2009

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Sharp MX-2600n has an E4-11 code. How do I fix that?


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    SHARP MX 2600N ERROR CODES Trouble Codes

    https://www.sosnfl.com/sharp-mx-2600n-error-codes/
    SHARP MX 2600N ERROR CODES trouble codes C1 10 C1 14 C4 00 E7 03 E7 10 E711 E7 ... Wait until the panel has gone dark and any flashing buttons have stopped flashing. ... A0 11 FIRMWARE VERSION INCONSISTENCY (MFP-PCU).

    [PDF]Sharp MX-M350N Trouble Error Codes - OlsonBros

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    [PDF]Sharp MX-3500N Trouble Error Codes - OlsonBros

    olsonbros.com/sharp/support/.../trbl-mx3500n_3501n_4500n_4501n.pd...
    MX3500N SELF DIAG AND TROUBLE CODE 8 - 1 ... part has reached .... 11: When detected during other than a job, the operation is enabled in other than the ...

    Error Codes > Sharp > MX2600N - Printcopy.info

Feb 03, 2016 | Sharp Mx-2600n MFP Copier

1 Answer

E7 code on amcoraire mini ductless unit


E7 i= "External Feedback Problem" which is a communication problem. There is a cable from the outdoor unit to the indoor unit ,check that cable is secured to the unit,check connections for tightness.
Here is the manual including instructions.
http://www.acwholesalers.com/EasyEditor/assets/amcor%20duo%20uchw-h12%20owners%20manual.pdf

Nov 08, 2015 | AmcorAire UCHW-H18AF2 Split System Air...

1 Answer

What's your question? My Sharp photocopier AR-161 display E7. and can't make copies what is the problem?


Here is a list of error code meanings for your device. You need to find out the sub code should be E7-?? To find the root cause. Sharp AR 161 Error Codes Trouble Codes

E7

E7 03 LSU trouble
E7 04 CCD white level trouble
E7 05 CCD black level trouble

Sep 25, 2015 | Sharp Office Equipment & Supplies

1 Answer

I am getting on sharp 5320 copier L6 and E7 codes


L6 - Polygon motor lock detection
E7 01 Duplex model memory error/ Image data error
02 LSU trouble
06 Image data decode error
10 Shading trouble (Black correction)
11 Shading trouble (White correction)
16 Abnormal laser output
F2 02 Toner supply abnormality

Mar 13, 2011 | Sharp AR-5320 Black and White Copier

1 Answer

Ihave sharp Ar - 287 printer the problem in it appear this message call for service . code : E7-11


E7-11 = Shading Trouble

As part of it's calibration process the copier measures the light given off from the copy lamp by its reflection from a white strip under the glass. If the copy lamp has failed this will also give this code.

With the power off and the machine unplugged try cleaning the mirrors and the white strip under the glass. It is sometimes possible to fit the glass upside down so it's worth checking that the white strip is facing down.

This code will normally reset by powering off/on.

Hope this helps

Feb 07, 2011 | Sharp AR-235 Copier

1 Answer

Hi my copier displays E7


Check this out :
E7 codes deal with the optical scanner unit and or the laser unit. It could also be the lamp in the scanner unit. The E7 is the main code. There is a sub code associated with it. To view the sub code hold down the start button. Below is a list of specific codes and their meanings:
E7-02: LSU trouble
E7-10: Shading trouble (Black Correction)
E7-11: Shading trouble (White Correction)
E7-12: Shading Trouble
E7-16: Abnormal laser output
If it is a laser (LSU) issue then the LSU may need replacing.
If it is a shading error the first step is to remove the platen glass carefully (with the power off because the inverter board). There is a thin white strip on the bottom side of the platen next to the **** glass. Clean this white strip with a soft cloth and a small amout of isopropyl alcohol.
Dust on the optics can also cause shading reference errors so gently blow off the mirrors with canned air.
Perform the following key procedure to reset error:
"#" key, Interrupt key, "C" key, Interrupt key
"1" key, "4"key
Start key, "CA" key.
See if unit cycles and comes back up. If not turn off and then back on the main power.
If error reappears on site technical service may be required.

Oct 31, 2010 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Hello im trying to trouble shoot two split systems the electrical wires were crossed for the two units I fixed it the compressors wont come on, wall unit says e7? This is on the Amcoraire ac split systems.


E7 indicates an "External Feedback Problem" which sounds like a communication problem. I believe there is a sensor cable that runs from the outdoor unit to the indoor unit also. Check that all cables are properly run to the appropriate unit and check all connections for tightness. Here is the link to a manual that includes installation and wiring instructions.
http://www.acwholesalers.com/EasyEditor/assets/amcor%20duo%20uchw-h12%20owners%20manual.pdf

Mar 16, 2010 | AmcorAire UCHW-H12AF2 Split System Air...

1 Answer

Trouble code E7-11


You have laser unit trouble. You should replace the lser unit

Apr 16, 2009 | Office Equipment & Supplies

3 Answers

E7 problem


E7 codes deal with the optical scanner unit and or the laser unit. It could also be the lamp in the scanner unit. The E7 is the main code. There is a sub code associated with it. To view the sub code hold down the start button. Below is a list of specific codes and their meanings:
E7-02: LSU trouble
E7-10: Shading trouble (Black Correction)
E7-11: Shading trouble (White Correction)
E7-12: Shading Trouble
E7-16: Abnormal laser output
If it is a laser (LSU) issue then the LSU may need replacing.
If it is a shading error the first step is to remove the platen glass carefully (with the power off because the inverter board). There is a thin white strip on the bottom side of the platen next to the slit glass. Clean this white strip with a soft cloth and a small amout of isopropyl alcohol.
Dust on the optics can also cause shading reference errors so gently blow off the mirrors with canned air.
Perform the following key procedure to reset error:
"#" key, Interrupt key, "C" key, Interrupt key
"1" key, "4"key
Start key, "CA" key.
See if unit cycles and comes back up. If not turn off and then back on the main power.
If error reappears on site technical service may be required.

Jan 06, 2008 | Sharp AR-5316 Advanced Digital Imager...

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