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E7 error on haier split system why - AmcorAire UCHW-H12AF2 Split System Air Conditioner

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Posted on Jan 02, 2017

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What meaning of e7 error code on disply starway split airconditioner.


This is all I could find for E7 error code:

E7 Loss of 120 VAC power to all power module boards on the system. The system will shut down.

Look for tripped circuit breaker or tripped GFCI outlet. Any outlet wired downstream of GFCI (for example on same circuit as GFCI in bathroom) will lose power if bath GFCI is tripped.

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E7 error code


e7 problam split ac mando company
what is problam pleez hallp me

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Code error E7


I'm not sure if NewAir is made by Gree -- they supply many. On Gree units, E7 simply means one unit is requesting heating while another is requesting cooling and you can't have both at the same time. So that's the first thing to check. Very simple, very common, doesn't indicate that anything is wrong with the system.

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E7 error message


The E-7 error code means the 2 wire defrost cable between the outdoor & indoor unit is disconnected or broken

Sep 10, 2010 | AmcorAire UCHW-H12AF2 Split System Air...

1 Answer

Haier air conditioner show E7 error and does not work


same problem because of voltage problem . here voltage was 400 so it was show e 7 then i made my voltage normal and ac is working good (y)

Jul 07, 2010 | Heating & Cooling

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...

2 Answers

I have an 18 K unit with E7 error on heat mode


I just installed a YMGI brand mini-split AC and had exactly the same problem. AC worked fine, but when I tried using heat mode I would get an E7 error.

After talking to their tech support I discovered the problem. There was a separate cable that needed to be connected that I'd forgotten to hook up. This cable runs from the internal unit to the outdoor unit and connects a defrost sensor.

In my case I had totally missed that cable when I installed the unit. After running another line and connecting it the unit is now functioning normally.

If this is a new install, then make sure all your cables have been run. If it was previously working, then check to see if one of the cables had become disconnected. If it's not the cable, then it's probably the sensor.

Good luck

Oct 18, 2009 | AmcorAire UCHW-H12AF2 Split System Air...

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