20 Most Recent Bosch HMB402 Microwave Oven Questions & Answers

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
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Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....Microwave Oven Basic Troubleshooting Tipsheatman101

how old is this

The first thing I would do is thoroughly clean the inside. Take particular care when cleaning around the upper left side. Sometimes a buildup of food steam or spray can cause the problem you are having. Never spray anything into the microwave, in an attempt to clean it.
Hope this helps.

If it is the magnetron you should be covered in warranty by Bosch.more likely problem is bad capacitor and diode ~ $45-50 parts $80 labor +service charge where applicable.Hope this helps. Please rate my response :)

Most likely, the bowl is not a microwave approved bowl. Simply b/c the bowl is glass does not mean it is safe for microwave use. Hope this helps.

If you google search bosch gourmet the second item down titled "bosch household appliances" you can download a manual from there

open the oven door and look on the sides where the door meets the oven. also slide open bottom drawer and look where drawer meets oven. hope this helps!

This is usually caused by either a bad door switch, a loose door switch mount (which are pretty simple problems to fix) or occasionally a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If the switch mount is broken, it's usually more economical and safer to add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.



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.

If you only need a switch, you can order a universal type here for $5 postpaid.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases in about a week or so.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

It may possibly be locked, in which case holding the enter/start pad for over 3 seconds may unlock it.

Otherwise, you may want to call Maytag / Amana at:
1-800-688-9900 U.S.A
1-800-688-2002 Canada

there i s obviously a fault with the programming hold down your clear or reset button for about 20-30 seconds it should reset .or unplug at night.

I pressed Start/Enter and Clear/Off simultaneously for 3-5 seconds and it exited DEMO mode for me.

to decide on that take it in to a repair shop to determine the cause of the sparking it could be a major problem or missing insulation so a proper diagnosis and quote will make it easier to decide