20 Most Recent Bosch HMV9305 Microwave Oven Questions & Answers

If you wish to get some details; check the site linked here. Pull up older posts.

Bosch HMV9305... | Answered on Jun 09, 2016

Hello, you need to take int microwave in to have repaired, you can get severly shocked if you touched the wrong thing inside the microwave.

Bosch HMV9305... | Answered on Dec 04, 2015

Most microwave manufactures do not sell parts to the public because if you open up a microwave oven and don't get it all back together exactly right, you could receive microwave burns or be blinded when you run it. Best to just take it to the recycling place and get a new one. Seriously, these things are extremely dangerous if you don't know what you are doing.

Bosch HMV9305... | Answered on Sep 16, 2015

Testing magnetron is easy. However caution must be taken when doing the measurement in resistance. If less than 1 ohm than it is still good otherwise it is bad. Btw not all the time magnetron goes bad but it could be power diode or power capacitor too or sometimes it is a simple bad door switch therefore needs to check all conditions as you have access. Provided link below on how to test magnetron for future reference.

Bosch HMV9305... | Answered on Jul 29, 2014

You probably have a shorted cook relay (see video), or possibly a bad door switch (see help file).

Bosch HMV9305... | Answered on Dec 27, 2012

The area will first have to be sanded smooth and cleaned and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

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

Bosch HMV9305... | Answered on Sep 08, 2012

proceed with this step and use the common sense: God bless you
can take some time. This is where you must be able to read a wiring diagram and do some "live" checks on parts. First easy check is to make sure power is coming off your control board at the MW relay. Make sure of the wires and test here, if you have 120 volts at this point, you have ruled out a lot of parts that could be the problem. You have now ruled out any switch problems, control board problems, or a thermostat or 2.If you do not have power from that MW relay on the control board, you must trace the wiring back to see if the proper voltage is going through your switches, any thermostats, and arriving at your control board. Your wiring diagram on your sheet will show you where and what to test. Below is a general switch test troubleshooting guide.

mwswitchtest.jpg mwswitchtest2.jpg If the proper voltage is coming into your control board and you are not getting voltage at the MW relay, then you need to replace the control board. If voltage is interupted by a thermostat or switch from your testing to the control board, then replace that part.Now, testing from the MW relay on to your transformer, high voltage capacitor, magnetron, and diode. Do not do any voltage reading from the secondary side of the transformer on, this can be a deadly microwave oven repair if you do not follow directions. This can result in electrocution and the "blowing-up" of your voltmeter, only do OHM testing with the power off and the capacitor discharged. Someplace in this circuit, usually before the transformer, you will have another thermostat to test. It is usually mounted on the magnetron. Do a quick OHM test to see if it is open or closed.
Now to test either the transformer, high voltage capicitor, magnetron, and diode, you must test each part separately. A good rule of thumb, if your capacitor is bad, change the diode also. Another note, if you are working on an OTR model and you have determined to be one of these "heating" circuit parts, you can not test these parts until you take the unit down. If you don't have the parts with you and you have to order them, order the magnetron, capacitor and diode and you will have a 90% chance of solving the problem. If it is an older microwave, order the thermostat also, most times you can return un-used, un-opened parts. Check with your parts supplier. This way you only have to take the unit down once.
To test these parts, scroll down this page and you will see a chart with component tests. Follow the instructions to find which part(s) are defective in your microwave oven repair.

Bosch HMV9305... | Answered on Aug 04, 2012

From the description you have a bad latch switch on the door caused by build up of food particles or ware.

Bosch HMV9305... | Answered on Mar 06, 2012

The most likely cause is a defective door latch switch.

Bosch HMV9305... | Answered on Jun 30, 2011

With all due respect, what are you doing to it?
If you use it with nothing in the cavity, that will kill the magnetron otherwise it will last for years and years.
Very unusual and Bosch is a well respected name.
If there is a probem with the oven, Bosch will replace it so take it up with Bosch.

Bosch HMV9305... | Answered on May 27, 2011

The exhaust fan appears to intake through a louvered vent in the bottom rear of the microwave case and output through a grease filter near the top front center of the case. You may be able to see some vent holes along the top of the case though these might be obscured by the manner in which the microwave was installed. You should be able to pop off the front panel that runs above the door but you'll need to consult the owners manual for specific instuctions.


Bosch HMV9305... | Answered on Apr 08, 2011

If it's not heating it is most likely a problem with the magnetron. When was this unit purchased and was it purchased new? If it is under warranty I would have it repaired under warranty. If not you will have to consider repair/replacement.

Bosch HMV9305... | Answered on Mar 07, 2011

The main microwave element has more than likely fried or the main capacitor to the element went bad. Had the same problem with a Bosch model. Not your exact one though. When it comes to fixing it yourself. You would Have to buy the element and take apart the whole unit. Its not an easy task to complete. The part might be hard to find online. The best option is to go out and grab a new one. A service tech would fix it but it would cost you around 200$ in labor and 65$ in parts plus possibly take 2 weeks if they do not have the part in stock. Good luck.

Bosch HMV9305... | Answered on Mar 02, 2011

Not finding what you are looking for?
Bosch HMV9305 Microwave Oven Logo

54 questions posted

Ask a Question

Usually answered in minutes!

Top Bosch Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9179 Answers


Level 3 Expert

13434 Answers


Level 3 Expert

85239 Answers

Are you a Bosch Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Bosch Microwave Ovens

  • Bosch Microwave Ovens

Most Popular Question

hmv9305 01 microwave 13months old

  • Microwave Ovens