Mvp overstove micro display dim any way to brighten up

Behind the display module there is a capacitor. It needs replacing. They bulge, split and fail.

possible a bad connection to the display
take it in for a proper diagnosis and quote

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Dimming Microwave Light - Breville Support

brevilleusasupport.com/bmo734xl/dimming-microwave-light/

Apr 10, 2014 - Occasionally, when using power settings that are lower then the normal 100% cooking power, the light inside the microwave cavity may dim.

It may be a weak VFD tube or it may be that the rear of the display window and front of the display glass are very dusty.

Sometimes you can clean it inside to brighten it up.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you can detach the keypad connector (as per attached photo) then remove the control panel screws.

Be careful not to crack the glass display when handling it, or it's a goner.

Then you can use a soft cloth (not a paper towel) and a mild cleaner (not ammonia-based) to clean the front surface of the VFD display glass and the rear side of the clear bezel (display window) that's attached to the keypad.

Direct spraying of cleaners on the keypad and steam from the cooktop can damage the controls.

I always recommend that you spray non-ammonia cleaner on a soft cloth (not a paper towel which can scratch) and gently wipe the keypad.



Some connectors may have a lock.


If that cleaning didn't help, then you have a weak VFD.

On this model, the VFD is not available separately, so you would have to order a new control circuit board for it.

You can find links to helpful exploded view diagrams and order parts here.

I'd recommend that your bookmark this link to your favorites.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

I've got the exact same problem with this unit. Don't have any solutions, however.

There are two main causes for this dimming:

1. Dust & other particle buildup on the front of the display glass and the rear of the display window. This can be cleaned.

Cleaning the display is easy, but you need to be careful so you don't break the glass.

First you would unplug the microwave or turn off its breaker.

Then see the video here that shows you how to remove your control panel assembly in less than 5 minutes.

Next, disconnect the keypad strip as shown in the photo below, then remove the screws that hold your circuit board in the plastic frame.


Then carefully (since the display is made of glass) remove your circuit board.

Using a soft cloth (since paper towels can scratch) lightly dampened with non-ammonia cleaner (since ammonia can damage some polycarbonate plastics), gently wipe off the front of the glass.

Then gently wipe off the back side of the plastic display window in the plastic control panel frame.

Reassemble, reinstall, and power it up, and it should be brighter, sometimes a whole lot brighter!

If that does not brighten it up enough, then...

2. Your vacuum display tube is wearing out and either the VFD display tube or the whole control circuit board must be replaced, depending on your model number, which you didn't mention.

If you'll contact me with your model number, I can give you an estimate and free do it yourself info.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

1. Sometimes you can clean it inside to brighten it up for a while.

2. In some cases, we can replace the VFD to brighten one up if it's available for a given model.

3. The last solution is to replace the control circuit board.

For more specifics on the options 2 & 3, we would need your brand and full model number.

Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, as well as your symptoms, "dim display".

As for suggestion # 1, cleaning:

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you can detach the keypad connector (as per attached photo) then remove the control panel screws.

Be careful not to crack the glass display when handling it, or it's a goner.

Then you can use a soft cloth (not a paper towel) and a mild cleaner (not ammonia-based) to clean the front surface of the VFD display glass and the rear side of the clear bezel (display window) that's attached to the keypad.

Direct spraying of cleaners on the keypad and steam from the cooktop can damage the controls.

I always recommend that you spray non-ammonia cleaner on a soft cloth (not a paper towel which can scratch) and gently wipe the keypad.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Removed the amber glass which obscures the display enough to remove the wiring from view. This also allows you to see the characters much more clearly. You now can see the inidvidual light elements.
It's not too bad, people don't even notice, but they do notice you can now tell the time and see what the oven is doing.

Sadly, the display tube is not available separately, so the only way to fix this is to replace the board, at a whopping $181.48!

One trick that helps is to remove the control panel assembly, take the circuit board out of the frame and very carefully wipe the front of the glass and the rear surface of the control panel frame's display window.

Use a soft cloth with alcohol-based (non-ammonia) window cleaner.

That will brighten it up quite a bit.

At our site, we now have a video available showing how to remove a typical control panel assembly in under 5 minutes.

Be sure to unplug the oven before you do any disassembly.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.