Disply goes blank from time to time. Sharp tap on the right side useually brings it back, but have to reset clock and options etc.
Checked for loose connections inside, couldnt find anything obviouse.
Anybody have any ideas?
The problem is most likely a burnt, loose, or cold solder connection on the control board. Most likely at the low-voltage transformer that supplies power the board itself. Carefully resoldering any suspect connections in this area should solve the problem. Be careful not to get too much solder on the connections that could short one to another.
- 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.
You have a faulty display module due to one or more components leaking. Some models have a seperate display module that can replaced without the complete board having to be replaced. If not, the board needs to be replaced. You need to ask your spares suppliers that have info. on that model.
normally you look for the clock ot watch icon. Pressing it once will give you the option for 24 hours setting. Press it twice and it will give you the opportunity to set to 12 hours setting. Using the no. keypad, punch in the time and then repress the clock icon again.
It may be a bad fuse inside or it could be blown circuit protection on the control board caused by a power surge.
The former you or a friend can fix, the latter we repair nationwide for only $39.95.
We have free service manuals available for download on our site for the Sharp R370 and R630 models which are similar types.
If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk
In my professional opinion, power outages can kick a failing or weak unit over the edge, so to speak, but the primary causes of these display failures are the design and manufacturing techniques.
We regularly remedy and repair these very units nationwide for $32.50, and our proprietary fixes make them better than new in my opinion, with the aim of not only fixing the problem, but preventing them from recurring.
When we repair them, we have folks send us the outer door panel with built-in keypad & display assembly, the power board, and the connecting cable. Thay way we can power and test the unit as an assembly.
It's better to separate the door panels instead of removing the door. I have attached a drawing to show how.
If you remove the door instead of just taking off the outer panel, the microwave will have to be tested for microwave leakage, which can occur if you haven't reassembled the door with all the hardware in the exact same position as it was.
So rest assured this can be economically fixed.