Question about Carrier XHB123D X/Y Series Heat/Cool Air Conditioner

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WRAC has E4 on display

Hi my Air Conditioner is a CARRIER WRAC unit and does not cool. it powers but the air is not cool air. the display has E4 and i have never seen this before.
can you please help?

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  • Anonymous Mar 15, 2014

    E4 fault code

  • Anonymous Mar 30, 2014

    a console appear e4 and this stop function what that means

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If the return air sensor not defective you must check the refrigerant charge . may be you have loss of the charge and you have to charge the unit and check it for leakage .

Posted on Oct 22, 2012

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E4 means return air sensor error, if the error cannot reset may be the return air sensor is out of range or defective. But if the sensor is ok you need to replace the control board itself. The reading of return air sensor is 8k to 10k ohms @ 25deg. C temperature.

Posted on Jan 13, 2008

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Related Questions:

Tip

CARRIER WINDOW ELECTRONIC CONTROL


CONTROL PANEL ERROR CODE
PROBLEM
REMEDY
E4
Thermistor problem
Shutdown unit and restart
E3
Unrecoverable of E2RAM data
Shutdown and unit and restart
E2
Loss or corruption of stored data
Using remote control go to Cool mode and shutdown the system, and then restart.
E1
Code validation check fail
Shutdown and unit and restart.
FL
Filter check warning
Press the “MODE” and (DOWN) “▼” buttons together until error code disappear.
Note: If the problem persist replacement of control board is needed.

-Push arrow up and arrow down together for 5sec. the room temp. will show.


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on Mar 02, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Error code E1 and E4


PDF]SERVICE Manual - Quietside

https://www.quietside.com/archives/.../Service%20ACC1800C.pdf
When error occurs in air conditioner, error code is displayed on indoor unit .... Display priority order at overlapping error : E1?E4?E5?P0?P0?P5?P6?t1? ...

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airmaster.net/midea-air-conditioner-error-codes/
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