I have the same problem with one of my installation building...out of 60 units i encountered 2 of them and thyis morning we check all of it. we dismantle also the evaporator and check it for any dirt on the filters all woring fine until i run it on and when it beginning to cool then i comes out the error and got an over charge reading on the gauge....
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Solution: 1) Check the indoor/outdoor connecting wire in proper point. 2) Change the connection of electric wiring, if reversed phase. 3) Check the protection device, if malfunction, replace it. 4) Measure the resistance of the outdoor coil thermistor. If the resistance is normal, replace the outdoor controller board Thanks.
P8 refers to outdoor protection device activation usually caused by low gas charge or blocked condenser coil. any good a/c company can resolve this for you. however please note that if it is gas related a pressure test must be carried out to determine where that potential leak may be and that can be very costly.
I am not familiar with a P8 code nor do I understand where you are seeing this But, go to mrslim.com and look under Customer resources, Library and then input your model number. Select Technical & Services. Product Catagory is Mr. Slim Ductless, Sub Catagory is M-series Multi Split, Current models. Remember you have inside units and one outside unit. You will need to look at each model number to find information on both. Usually Mitsubishi's will have two lights that will blink in patterns to indicate what could be wrong. The P8 code is new for this Diamond Dealer!