Question about Soleus MobilAir MA9000 Air Conditioner

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E4 error being displayed

E4 error will come up and the system will shut off. Need advice what can be the problem

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  • Achike Mar 14, 2008

    Error E4 is displayed on a Holtstar Remote Controlled Air Conditioner with 2.3GJWDCP PD212-12/01 and 2HCSJZB-PD3 01-11-04 Remote Controller Board and it does not take any other instruction once it is powered and the error E4 comes on

  • engraved Aug 15, 2008

    Can the ac be fix once yiou get the e4 error message, and how?

    MA9000 is what I have.



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This error message is because the water tank is full. Just empty it out and put it back in and the AC will start to work again. If that doesn't work then I don't know what the problem is, but I just had the E4 error and did that and the problem was solved.

Posted on Apr 16, 2012

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Here is the manual if you need it; although it doesn't list error codes - the FAQ section on the site says; "What should I do if my unit has an E-4 problem? The broken water tank flipper will directly cause the unit to not function and the E-4 message will appear on the display screen." Have a look and see if that looks like it is the problem, and if you could post back with a photo we may be able to help you fix it, else contact Soleus for parts; Hope this helps :)

Posted on Mar 30, 2007

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E4 is an internal error - it is not repairable. It's usually associated with a low freon or a freon leak.

Posted on Jun 01, 2010

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Basically an "E4" Error Code means that the Carriage Assembly is locked, or stopped during operation. There is no Home Position Sensor for the carriage assembly. The Home Position is detected using the Carriage Encoder Sensorand Timing Belt, as the Printhead Assembly hits the rubber bumper on the left side of the carriage assembly. If blowing out the sensors has no effect, then the most common problem with an "E4" service condition on a "DFX-8500", is a bad/failing REAR COVER INTERLOCK SWITCH. After that, its usually a failing/bad Carriage Motor. The interlock switch is basically the safety shut-off switch for the Top Cover, located on the back left side of the printer, from the front. A metal arm/protrusion on the top cover, pushes in on the switchs lever when it closes. If the switch is going bad, then it cannot always tell that the top cover is closed. That switch shuts down the Carriage Assembly operation for safety reasons, when the top cover is opened. You can remove the wires connected to the switch and jump them with a paperclip, to bypass the switch for testing purposes only. Once bypassed, if the "E4" Code is gone, then you know that you need a new switch. If the "E4" is still there, then its of course possible that the Carriage Motor that drives the timing belt and printhead assembly is also going bad, but there's no easy way to test it, like a failing switch. At least you can eliminate the switch first as a possible problem...TECH NOTE: On any FATAL ERROR service error, if the printer is not shut off with-in 12 seconds, the power automatically shuts off for a minimum of 5 minutes. If you try to turn on the power at 4.5 seconds, it will just add another 5 minutes to the counter

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Thank you,have a nice day


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