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Our Mitsubishi FDC506HES ducted air conditioner keeps shutting off on hot and cold after about 10 minutes and flashes and the comes up with the error code E3.It will heat for those 10 monutes before it shuts down but it will not really cool at all. Please help. We cant afford to get someone to fix it. We just paid a guy to come and look at it $120 and still he said he didnt know and would have to contact Mitsubishi and get back to us. $120 for that. That was a good portion of our weekly budget GONE and still we have no cool air as the weather heats up. What is E3 and can we do something. My hubby is pretty cluey and Im sure with instruction could do what ever these aircon guys who charge $120 per half hr could do. Please we are desperate!

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Try to reset the error by disconnecting the circuit breaker for 10sec. and "on" again then operate the unit. But if wont work may there some parts that are defective that trigger the error E3. Replacement of pars is needed for this problem.

Posted on Sep 23, 2008

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