Tip & How-To about Heating & Cooling
There are many questions about the E-1 error code that seems to pop up on many of the window air conditioning units. The problem is that there are a number of different meanings to this code depending on the brand of air conditioner that you have.
For many window air conditioners this code is simply a reminder to clean the air filter. After like 750 hours of run time this code pops up and you have to clean the filter and then reset the unit before it will work again. To reset the code you need to simply unplug the unit and then plug it back in again. On other units you need to hold down the power button while you reenergize the air conditioner.
On another make of window air conditioner you need to push the “fan” button twice and then the “mode” button once to reset this code. Still another person found that the circuit boards where going bad and they had to replace them to get the unit to work.
The best and most reliable way to find out how to reset the code is to go the website of the company that manufactured your air conditioning unit and download their manual directly from the site. This manual will give you the sequence needed to get the code reset. I do realize that some companies do not make these manuals available to download. In that case the best thing is to call the customer service number and see if they have a technical support number or service that you can talk to directly. They will be able to help you with your problem.
The other problem that this code seems to come from is the thermistor sensing too cold of temperatures on the coil. This can be caused by the coil being so dirty that not enough air is going through, the fan going bad and not moving enough air, or just a faulty thermistor.
If the fan does not seem to be running at full speed anymore or your unit has been run with a very dirty air filter, or no air filter then you may need to clean the coil. This can be washed out using a spray bottle and some careful cleaning of the fins so you do not bend them. A mild soap and water solution followed by clear water will often do the trick there.
You can see now that this code has many and varied solutions. There is no one exact solution to the E-1 code. You will need to do some checking and research to figure out which of the problems you have and how is the best way to remedy that problem.
Posted by D. Floyd... on
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