My Dacor DMT2420 fan, light and turtable motor run continuously when the door is open. I have unplugged the unit to reset it with no help, another on-line forum expert suggested checking the door switches and monitor switch and those seem to be fine and make contact when the door is closed. Any advice on what is wrong?

Question 1

0helpful

1answer

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.

On the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Jul 22, 2011 • Dacor DMT2420 1200 Watts Microwave Oven

0helpful

1answer

Turntable will not rotate.

If it's also not heating, on the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.

Otherwise, it may be a bad turntable motor, turntable coupler, or the control circuit board (which we repair).

The service manual is here and the parts list is here.

You can order Dacor parts by part number from the Pros here.

Feb 17, 2011 • Dacor DMT2420 1200 Watts Microwave Oven

0helpful

1answer

Door won't open

That's probably the door open lever or door open button, and there may be grease where the button passes through the control panel frame.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Feb 07, 2011 • Dacor DMT2420 1200 Watts Microwave Oven

2helpful

1answer

Dacor DMT2420 Secondary interlock switch fails every several months. Using a clamp meter I measured 13amps and was wondering if that seems high for that switch even though it's rated at 16 amps? The Turn...

The 13 amp current draw while cooking is normal.

What kills the door switch is when people open the door while it's cooking.

Make sure everyone always hits the "Stop" pad first.

See this text file on door switches.

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

Nov 22, 2010 • Microwave Ovens

0helpful

1answer

I opened the door on our Dacor microwave after heating food and the interior light, which was on for about a second, blinked off. The light will no longer come on when the door is open and the microwave...

On the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Oct 21, 2010 • Dacor DMT2420SS Microwave Oven

0helpful

1answer

Light and display work but not unit or turntable

On the DMT2420, that's a bad bottom door switch, or possibly that switch's mount.
The service manual is here and the parts list is here.
You can order Dacor parts by part number from the Pros here.

Jun 27, 2010 • Dacor DMT2420SS Microwave Oven

0helpful

1answer

Dacor DMT2420 turntable not rotating.

It may be a bad turntable motor or coupler, or the motor may not be getting power due to a bad connection or relay on the control circuit board (which we repair).

The service manual is here and the parts list is here.

You can order Dacor parts by part number from the Pros here.

Dec 07, 2009 • Dacor DMT2420SS Microwave Oven

1helpful

1answer

Display scramled, light works, timer counts down but unit doesnt

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

Assuming your model number is DMT2420 (since that's the category under which your query was posted) then you likely also need a new secondary interlock (bottom door switch).

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.

If you have a different model, please reply back or contact me directly with the correct model.

If you want to send your control panel assembly in for repair, you can note on the repair form that you need a new door switch and we'll throw one in at no charge.

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.

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com

Jun 15, 2009 • Dacor DMT2420 1200 Watts Microwave Oven

3helpful

2answers

Need help with DACOR Microwave model PCOR30S, w/the minute timer

This is a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.

The damper is a door inside that opens or closes depending on cooking mode. If the controller senses that the door is not in the right position, it will shut down the cook cycle.

Sharp models (and Sharp models made for Dacor) stop after 59 seconds.

See the attached sample photo for a typical damper assembly.

We have a very close service manual and have uploaded it to our site here to help you.

You will need the free Adobe Reader to view or print it.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

If your model is PCOR30, and you need a new motor, the part number is 66756 and you can order it here.

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

William E. Miller
[email protected]
http://www.microwavedisplay.com

Dec 19, 2008 • Dacor DMT2420 1200 Watts Microwave Oven

0helpful

1answer

Fan runs and turntable turns when door is opened

SRUte- This sounds as if you have a collapsed door switch, this would cause this problem,I would not recommend using it until repaired. But as far as recommending a good brand,each to his own everyone is different.I have done repairs for years,and I Love Panasonic products,they seem to have minimal problems.I hope this helps you out. cooltek Mar,3/08

Mar 04, 2008 • Dacor DMT2420 1200 Watts Microwave Oven

Question 2

William Miller

Dacor Master 9,179 Answers
Posted on Jan 16, 2010

William Miller

Dacor Master

Joined: Sep 15, 2006

Answers

9179

Questions

3

Helped

4481745

Points

21747

If the cooling fan, light and turntable run continuously when the door is open, but not when it is closed, your secondary interlock (bottom door switch) is shorted (always on).

Even if it's shorted, the actuator button (usually red) will still move up and down when you open and close the door.

It will need a new door switch.

See the service manual here. See our file on door switches here.

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

Related Topics:

Trustworthy Expert Solutions

1 Answer

William Miller

Add Your Answer

Attachments: Added items

Related Questions:

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.

Turntable will not rotate.

Door won't open

Dacor DMT2420 Secondary interlock switch fails every several months. Using a clamp meter I measured 13amps and was wondering if that seems high for that switch even though it's rated at 16 amps? The Turn...

I opened the door on our Dacor microwave after heating food and the interior light, which was on for about a second, blinked off. The light will no longer come on when the door is open and the microwave...

Light and display work but not unit or turntable

Dacor DMT2420 turntable not rotating.

Display scramled, light works, timer counts down but unit doesnt

Need help with DACOR Microwave model PCOR30S, w/the minute timer

Fan runs and turntable turns when door is opened

Not finding what you are looking for?

DMT2420SS Microwave Oven

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.

Ask a Question

Top Dacor Microwave Ovens Experts

Rob Hill

ADMIN Andrew

Steve Pack

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

Manuals & User Guides

Related Topics:

Trustworthy Expert Solutions

1 Answer

William Miller

Add Your Answer

Attachments: Added items

Related Questions:

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.

Turntable will not rotate.

Door won't open

Dacor DMT2420 Secondary interlock switch fails every several months. Using a clamp meter I measured 13amps and was wondering if that seems high for that switch even though it's rated at 16 amps? The Turn...

I opened the door on our Dacor microwave after heating food and the interior light, which was on for about a second, blinked off. The light will no longer come on when the door is open and the microwave...

Light and display work but not unit or turntable

Dacor DMT2420 turntable not rotating.

Display scramled, light works, timer counts down but unit doesnt

Need help with DACOR Microwave model PCOR30S, w/the minute timer

Fan runs and turntable turns when door is opened

Not finding what you are looking for?

DMT2420SS Microwave Oven

Dacor DMT2420. Light and Display work fine, and you can type in time for cooking, but when you hit start, it does not make the buzz of it's normal sound, and the turntable doesn't spin.

Related Topics

Ask a Question

Popular Questions

When I plug my microwave into wall outlet sparks

My Dacor microwave does not

My Dacor microwave display is getting dimmer and

Dacor DCM24S microwave not working--not heating and table not rotating

Dacor Microwave/Conv Oven DCM24S

Top Dacor Microwave Ovens Experts

Rob Hill

ADMIN Andrew

Steve Pack

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

Manuals & User Guides