Question about Samsung SMH9187ST Microwave Oven

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Show picture of a mylar ribbon cable - Samsung SMH9187ST Microwave Oven

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show picture of a mylar ribbon cable - 40716d4.jpg

Posted on Oct 26, 2012

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My microwave says "SE" or "5E" and won't work. What does this mean?


The problem lies with the mylar ribbon cable that connects the Keypad to the circuit board. The Mylar ribbon cable folds back onto itself and are touching. Over time the mylar 'breaks down' electrically and the wire traces in the mylar will 'arc' onto the other mylar ribbon cable. The solution is to separate the two mylar ribbon cables using paper and electrical tape. I've done this on several microwaves (not just Samsung) and it has worked every time. Patience and about 20 minutes is all it should take to fix it. I've described below how I did it for the SMH9187ST Microwave Good luck to all.

1. UNPLUG THE MICROWAVE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2. 1. Remove the top front cover by removing the (2) screws that are along the top edge (phillips).

3. 2. Slide the cover to the left about a half inch (there are tabs holding the cover in place) and remove.

4. 3. Remove (1) screw from the top of the Keypad Housing (phillips). Lift the Keypad Housing upwards about half an inch (there are tabs holding the Keypad Housing in place) and remove. Be careful of the metal grille that is just above the Keypad Housing as this may fall out since it is being held in place by the Housing.

5. 4. Be careful not to pull on the wiring harnesses that are attached to the Housing. Carefully unplug the wiring harness that has the RED connector on it from the circuit board. Carefully unplug the small white connector that has the mylar ribbon cable on it (this cable is see-through and you can see thin, flat wires in it).

6. 5. Remove (4) screws that are holding the circuit board onto the Housing.

7. The Housing should now be free of the circuit board and wiring harnesses. It's safe to let the wiring harness/circuit board hang free, but caution should be used anyway.

8. 6. Remove the thin metal frame from the Housing. There are (4) plastic tabs holding the frame in place. Using a small screw driver pry one side of the frame away from the housing (try to do this to the side that has smaller plastic tabs). When this side of the frame is free of the Housing you have to lift the frame out at an angle to remove. It might put up a fuss, but be patient and be gentle with it since the frame is thin and fragile.

9. 7. With the frame out of the way you will see the mylar ribbon cable that is coming out from underneath the Keypad assembly. You will notice that the mylar ribbon cable folds back onto itself as it re-enters the Keypad assembly. This 'touching of the two ribbon cables' is where the trouble lies. The ribbon cables may be stuck together. Carefully separate these two and then insert a small piece of paper between them (paper can be 1/2 x 1/2 ) and work the paper all the way down into the Keypad assembly as far as it will go.

10. 8. Using electrical tape, apply a small piece between the ribbon cables to hold the paper in place. Next, use more electrical tape and put it between the mylar ribbon cables enough so as to keep the ribbon cables separated.

11. 9. Re-attached the thin metal frame making sure to press it into the Keypad assembly enough so that the (4) tabs click into place.

12. 10. Use electrical tape and apply it to the raw metal edge of the thin metal frame to prevent the mylar ribbon cables from rubbing on the metal edge.

13. 11. That's it. A final word of caution. Be careful when inserting the ribbon cable connector back on to the circuit board. The connector is loose and you need to gently place the ribbon cable into the circuit board connector.

14. 12. Reverse the order of assembly from above.

15. 13. Plug in the microwave and then it should reset and ask you to set the time.

Best of luck to you

Dec 29, 2014 | Maytag Appliances Over-the-Range Microwave...

1 Answer

Have a TE code showing on my kenmore elite microwave hood combo


At some place I saw that the TE error refers to the touch panel.
If you go to http://www.searspartsdirect.com/ and enter your full model number you can get parts list and buy parts and even get repair advice.
Link below shows how to replace a control panel on some model of microwave oven. In the video you will see a ribbon cable being removed. You might want to wipe the contacts of the ribbon with alcohol and put it back in to see if it helps with your problem.
F3 error Microwave oven control panel replacement

Sep 11, 2014 | Kenmore Microwave Ovens

2 Answers

Samsung microwave shows SE on display


The problem lies with the mylar ribbon cable that connects the Keypad to the circuit board. The Mylar ribbon cable folds back onto itself and are touching. Over time the mylar 'breaks down' electrically and the wire traces in the mylar will 'arc' onto the other mylar ribbon cable. The solution is to separate the two mylar ribbon cables using paper and electrical tape. I've done this on several microwaves (not just Samsung) and it has worked every time. Patience and about 20 minutes is all it should take to fix it. I've described below how I did it for the SMH9187ST Microwave Good luck to all.

1. UNPLUG THE MICROWAVE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2. 1. Remove the top front cover by removing the (2) screws that are along the top edge (phillips).

3. 2. Slide the cover to the left about a half inch (there are tabs holding the cover in place) and remove.

4. 3. Remove (1) screw from the top of the Keypad Housing (phillips). Lift the Keypad Housing upwards about half an inch (there are tabs holding the Keypad Housing in place) and remove. Be careful of the metal grille that is just above the Keypad Housing as this may fall out since it is being held in place by the Housing.

5. 4. Be careful not to pull on the wiring harnesses that are attached to the Housing. Carefully unplug the wiring harness that has the RED connector on it from the circuit board. Carefully unplug the small white connector that has the mylar ribbon cable on it (this cable is see-through and you can see thin, flat wires in it).

6. 5. Remove (4) screws that are holding the circuit board onto the Housing.

7. The Housing should now be free of the circuit board and wiring harnesses. It's safe to let the wiring harness/circuit board hang free, but caution should be used anyway.

8. 6. Remove the thin metal frame from the Housing. There are (4) plastic tabs holding the frame in place. Using a small screw driver pry one side of the frame away from the housing (try to do this to the side that has smaller plastic tabs). When this side of the frame is free of the Housing you have to lift the frame out at an angle to remove. It might put up a fuss, but be patient and be gentle with it since the frame is thin and fragile.

9. 7. With the frame out of the way you will see the mylar ribbon cable that is coming out from underneath the Keypad assembly. You will notice that the mylar ribbon cable folds back onto itself as it re-enters the Keypad assembly. This 'touching of the two ribbon cables' is where the trouble lies. The ribbon cables may be stuck together. Carefully separate these two and then insert a small piece of paper between them (paper can be 1/2 x 1/2 ) and work the paper all the way down into the Keypad assembly as far as it will go.

10. 8. Using electrical tape, apply a small piece between the ribbon cables to hold the paper in place. Next, use more electrical tape and put it between the mylar ribbon cables enough so as to keep the ribbon cables separated.

11. 9. Re-attached the thin metal frame making sure to press it into the Keypad assembly enough so that the (4) tabs click into place.

12. 10. Use electrical tape and apply it to the raw metal edge of the thin metal frame to prevent the mylar ribbon cables from rubbing on the metal edge.

13. 11. That's it. A final word of caution. Be careful when inserting the ribbon cable connector back on to the circuit board. The connector is loose and you need to gently place the ribbon cable into the circuit board connector.

14. 12. Reverse the order of assembly from above.

15. 13. Plug in the microwave and then it should reset and ask you to set the time.

16. Hope this works for you !!

Jun 13, 2012 | Samsung SMH9187ST Microwave Oven

4 Answers

The microwave display shows "--SE--" I have not


This fixed mine.

The problem lies with the mylar ribbon cable that connects the Keypad to the circuit board. The Mylar ribbon cable folds back onto itself and are touching. Over time the mylar 'breaks down' electrically and the wire traces in the mylar will 'arc' onto the other mylar ribbon cable. The solution is to separate the two mylar ribbon cables using paper and electrical tape. I've done this on several microwaves (not just Samsung) and it has worked every time. Patience and about 20 minutes is all it should take to fix it. I've described below how I did it for the SMH9187ST Microwave Good luck to all.

1. UNPLUG THE MICROWAVE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2. 1. Remove the top front cover by removing the (2) screws that are along the top edge (phillips).

3. 2. Slide the cover to the left about a half inch (there are tabs holding the cover in place) and remove.

4. 3. Remove (1) screw from the top of the Keypad Housing (phillips). Lift the Keypad Housing upwards about half an inch (there are tabs holding the Keypad Housing in place) and remove. Be careful of the metal grille that is just above the Keypad Housing as this may fall out since it is being held in place by the Housing.

5. 4. Be careful not to pull on the wiring harnesses that are attached to the Housing. Carefully unplug the wiring harness that has the RED connector on it from the circuit board. Carefully unplug the small white connector that has the mylar ribbon cable on it (this cable is see-through and you can see thin, flat wires in it).

6. 5. Remove (4) screws that are holding the circuit board onto the Housing.

7. The Housing should now be free of the circuit board and wiring harnesses. It's safe to let the wiring harness/circuit board hang free, but caution should be used anyway.

8. 6. Remove the thin metal frame from the Housing. There are (4) plastic tabs holding the frame in place. Using a small screw driver pry one side of the frame away from the housing (try to do this to the side that has smaller plastic tabs). When this side of the frame is free of the Housing you have to lift the frame out at an angle to remove. It might put up a fuss, but be patient and be gentle with it since the frame is thin and fragile.

9. 7. With the frame out of the way you will see the mylar ribbon cable that is coming out from underneath the Keypad assembly. You will notice that the mylar ribbon cable folds back onto itself as it re-enters the Keypad assembly. This 'touching of the two ribbon cables' is where the trouble lies. The ribbon cables may be stuck together. Carefully separate these two and then insert a small piece of paper between them (paper can be 1/2 x 1/2 ) and work the paper all the way down into the Keypad assembly as far as it will go.

10. 8. Using electrical tape, apply a small piece between the ribbon cables to hold the paper in place. Next, use more electrical tape and put it between the mylar ribbon cables enough so as to keep the ribbon cables separated.

11. 9. Re-attached the thin metal frame making sure to press it into the Keypad assembly enough so that the (4) tabs click into place.

12. 10. Use electrical tape and apply it to the raw metal edge of the thin metal frame to prevent the mylar ribbon cables from rubbing on the metal edge.

13. 11. That's it. A final word of caution. Be careful when inserting the ribbon cable connector back on to the circuit board. The connector is loose and you need to gently place the ribbon cable into the circuit board connector.

14. 12. Reverse the order of assembly from above.

15. 13. Plug in the microwave and then it should reset and ask you to set the time.

16. Hope this works for you !!

Jun 11, 2011 | Samsung SMH9187ST Microwave Oven

3 Answers

Shows a 5E error code. Can you help?


SE means you have a shorted membrane keypad.

Actually the best overall solution to this problem is usually to order a new controller assembly (control box) and install it yourself. It's pretty simple.

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

Your part numbers may be different, so you can find helpful exploded views by entering your actual full model number at the Sears parts direct Web site here.

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

Some connectors on the relays may have a lock:

Apr 23, 2011 | Samsung SMH9187 Microwave Oven

4 Answers

My smh model is less than a year old -SE- appears on the display screen does this mean the keypad needs to be changed?


If memory serves me, -SE- means system error which indicates a keypad failure, the microprocessor ic is mounted on a circuit board along with other componants directly behind the keypad and controls the oven vital functions. If you have any warranty of any kind, now is the time to use it.

Jan 28, 2011 | Samsung SMH9187ST Microwave Oven

1 Answer

We have an lg microwave oven with the control pad on bottom of door...removed pad by lifting on sticky stuff but it is attached with a circuit board ribbon, How do I remove the ribbon


where the ribbon cable makes connection to the control board there is a plastic insert around it you need to grab one both sides just the plastic piece not the ribbon and it will pop up approx 1/8 inch to 1/4 inch and allow the ribbon cable to come out..there are two small holes that are in ribbon cable once you remove you will be able to see that align with 2 plastic tabs so when pressed down the ribbon cable connects with the control...good luck to you

Jan 06, 2011 | Microwave Ovens

1 Answer

Display only shows 8888 - display buttons do not work.


try a reset. unplug for 10 mins, plug it back, see if it will work.

if not , open the housing, see a ribbon cable from the touch pad to the main pc board. remove the ribbon cable for 1 min. re install it back and test the unit.

be sure to return all cover and screws of the unit before plugging it back. microwaves are hazardous to your health.

tnx 4 using fixya,

drcool


Oct 05, 2008 | Sharp Microwave Ovens

1 Answer

Microwave


Having the brand and model will help us point you to the parts supplier so you can buy a new keypad.

Please post back.

Oct 23, 2007 | Microwave Ovens

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