I had an E3 on the upper zone. This fix was simple. Unscrew the 2 screws for the middle tray. Pull tray out as far as you can. Check the wires in the back, those are the wires for the fans in the back. The connectors over time corrode, and break off... All I did was connected the 2 wires that had broken off of their connector directly to eachother. E3 went away and the cooler is working as it should now.in
From the manual @ http://mcappliance.com/document/MCWC44DZ.pdf
"“E1” on display for upper zone – error of temperature sensor for upper zone. “E2” on display for lower zone – error of temperature sensor for lower zone. “E3” on display for upper zone – error of DC electric fan for upper zone. “E4” on display for lower zone – error of DC electric fan for lower zone. If any of above errors happens, please contact Customer Service Dept. for further assistance. Do not attempt to repair it yourself. "
I agree with infomag2005, I just fix mine, there is another post where they recommend to remove the tray completely, I did that and is not necessary.Simply unscrew the middle tray and slide out as far as you can. Pay attention to the right side there are many of the cables that made the fridge to work, there are push inside the tray, you can pull them out carefully that will give you an extra inch or so to work on the back.Make sure you mark the cables on the back, ( there are two reds and two blacks) before you cut them. Cut them as close as possible to the connectors. Peel and reconnect. Isolate them very well with electrical tape. The humidity in that part of the fridge is what cause the problem in the first place. So the more you isolate them the better.Put everything together and voila works like a charm, now drink a glass of cool wine:)
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Go to this page it will take you to a "dropdown" menu. Go to your model number and there will be 2 different PCBs in each category. One is for the door the other is the main. make sure you get the right one....match up the numbers you mentioned 155TD in yours which is the "pren" version of the 2 choices. Hope this helps you! http://mcappliance.com/partorder.aspx
"E3" on display for upper zone - error of DC electric fan for upper zone.
I had an E3 on the upper zone. This fix was simple. Unscrew the 2 screws for the middle tray. Pull tray out as far as you can. Check the wires in the back, those are the wires for the fans in the back. The connectors over time corrode, and break off... All I did was connected the 2 wires that had broken off of their connector directly to each other. E3 went away and the cooler is working as it should now.in
try to reset your unit unplug it then after a several minutes plug it on then observe unit. check your condensing unit the fan motor if working smoothly or clean your condenser possible dusty. use pressurized water. adjust your thermostat setting.then observe it.
E4" on display for lower zone - error of DC electric fan for lower zone.
If any of above errors happens, please contact Customer Service Dept. for further assistance. Do not attempt to repair it yourself.
For Service or Assistance please call 888 775- 0202. Or visit us on the web at www.mcappliance.com to request warranty service. Your unit has a one year warranty from date of purchase. Hope this helps you. Jim
On the Magic Chef site you can order parts for the cooler. I took mine out and treid to find them on the web somewhere else and could not locate them anywhere except China and England. I know this isn't true but tried every search option I could think of. They are about $22 plus shipping (HIGH). You might try the following:
An E-3 error code on your product indicates a problem with the DC fan in the upper zone. Your issue could be with the fan motor, control board or connecting wire harness. A DC motor can not be ohmed out like an AC motor, so if you detrmine the motor is not running, check for DC voltafe at the motor connections. If there is 12 to 24VDC, then you have a bad motor. If no voltage is present, check the output on the board. Before replacing an expensive circuit board, you may want to have a professional service tech come out and diagnose your problem. ***ALWAYS remove electrical power from the product when removing panels to gain access to components, and also when putting the panels back in place.
Taken from another poster at Home Depot reviews and similiar to what others have found...
The e3/e4 problem is the "connectors" for the fans to the middle separator shelf are put in the pathway of condensation. This causes them to get wet and rust. PLEASE NOTE: If you decide to attempt this fix, you take full responsibility for your fridge and the outcome. If you don’t think you can do this…DON’T! Call a licensed electrician.Here is how I resolved my e3 issue:1) Unplug the fridge 2) Remove all wine and the metal shelves 3) Remove the 2 screws from the middle separator shelf, one on each side on top 4) Remove the 4 screws from the backboard, one in each corner 5) Slide out the middle shelf slowly, on the right hand side towards the front of the shelf there will be 4 connectors you must disconnect before removing the shelf (they are tucked into the shelf). With one hand on the backboard and one on the shelf, slowly take them out together 6) Once you have the backboard and shelf out, you'll see there is a black and white connector, each having a red and black wire on each side 7) These are the fan connectors that are causing the issue. Mine were brown/green and damp (not good for electricity) 8) Using wire cutters, cut as close as possible to the "black" connector on each side to remove it. You will have 4 wires left, 2 from the backboard and two from the shelf (both having a red and black) 9) Take some of the sheath (cover) off of each wire 10) Take the red wire from the backboard and the red wire from the shelf and twist the metal portion together 11) Cover w/ electrical tape!!! Or you will have the same e3/e4 issue 12) Repeat step 10 and 11 for the black wires 13) Move onto the "white" connector and repeat steps 8 - 12 14) Put the backboard and shelf back in the fridge. Be careful not to pull the backboard and shelf apart or your connection may come apart 15) As you slide the shelf in, make sure the wires you disconnected in step 5 are in the "channel" on the side of the shelf or the shelf won't slide properly. 16) Reattached the 4 connectors and then re-attach the backboard and the shelf with the screws 17) Plug the fridge back in 18) Put the metal shelves and wine back in"Sucks that a $0.10 piece of heatshrink on the connectors could avoid this...? Bad Design.