Question about AmcorAire UCHW-H12AF2 Split System Air Conditioner

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I have a 24,000 btu amcoraire duo split unit installed by a licensed HVAC. the Unit has never worked properly! E4 code when running ac and E7 code when trying to run the heater. what should i do? trash it and try again! I cant locate the manufacturer nor can i find parts ie. circuit board.

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  • little bulls May 11, 2010

    on the inside of the unit in the house or, more likly, in the manual, will be a list of what the codes mean. E-mail me these and we can propbaly get somewhere. The unit is a arcoaire not amcoaire.(unless ive never heard of it) If its under warrenty any dealer that sells these units may be able to help

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hvac1960
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SOURCE: I have a 24,000 btu

E-7. This is a communication error between the indoorand out door units.

Posted on Dec 11, 2010

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SOURCE: have a 18,000 btu amcoraire

You can't adjust anything without the remote,
go to ebay.com search Amcoraire remote control, you will find what you need.

Posted on Sep 02, 2011

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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

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E4 error on screen


Check out door unit. May be weak in Running capacitor/Fan motor capacitor/Condensor coil dust blocked. First clean and run, if still problem check speed of fan motor, if less replace fan-capacitor.

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Have a 18,000 btu amcoraire duo split unit and lost remote control how can you adjust temp without the remote


You can't adjust anything without the remote,
go to ebay.com search Amcoraire remote control, you will find what you need.

Jul 08, 2011 | AmcorAire UCHW-H12AF2 Split System Air...

1 Answer

AMCOR 24,000 BTU split system. Worked fine two years, then today it had no power. Checked circuit breaker, it had popped. Reset CB and went to inside unit - would not turn on or off with remote or hard...


I had this same problem. I disconnected the thermostat wire out side at the condenser and reconnected it and it started working. A couple days later it blew the breaker again this time I found the bus where the L1, L2. GR wire connect at the condenser had melted. I wire nutted all 3 wires instead of the using the bus everything is working right again. Hope this helps.
Tim

Aug 09, 2010 | AmcorAire UCHW-H24AF2 Split System Air...

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

Does not heat or cool


Hi, If the outdoor unit is running, make sure the fan is on also. If the system is new and has just been installed, it sounds like you may have a freon leak and have lost all its freon. Turn it on cool and let it run for a few minutes. Go outside and grab hold of the larger copper line coming out of the unit. It should be nice and cold and sweating. If not, and the fan and compressor are up and running, you have a leak and lost its charge. Check this and get back to me and let me know what you have found. We can go from there.
Shastalaker7
PS, When these installers put these units in, they sometimes get in a hurry and there welds are not very good and will leak over time, just to let you know.

Jan 26, 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...

1 Answer

I have an Amcor 18000 BTU Mini-Split A/C with Heater and Remote. It has never run more than two days and then I get E4 error code. It is difficult to get anyone to service these units in rural areas. I...


CLICK HERE for the manufacturer site and your owners manual.

E4 is an "Abnormality of Outdoor Unit."

This could be anything from a blown diode to low refrigerant.

Any HVAC repair company should be able to test the unit.

Thanks for using FixYa - please accept this answer to remove it from the work queue.

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Jul 08, 2009 | Heating & Cooling

1 Answer

Low cool air


Because the model numbers are based on the country in which you bought the unit, you will have to do the research yourself on the error code for your unit. Once you find out what the error code is you can determine if low refrigerant caused the problem. Here is the contact info website to download your manual.
http://www.amcoraire.com/index.html

Apr 03, 2009 | AmcorAire UCHW-H12AF2 Split System Air...

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