We used our Daihatsu split system all of last summer 2013/2014 without any issue and used it 3 times during winter without an issue. Over the past month we have tried to use the AC due to the hot weather we've been having in Melbourne and are getting an E5 error message. We have turned it off at the wall and back on again but still getting the E5 message. How do we fix this? Please reply as soon as possible