Question about Sharp R-1870 Convection/Microwave Oven

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I have a Sharp Platinum Collection 630D microwave--about 8 years old-- that has timer problems. It does not display the numbers I set it for and doesn't show the count down. Can this be fixed? Thanks. Linda

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6ya6ya
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Posted on Jan 02, 2017

  • 619 Answers

SOURCE: Sharp R-1505 microwave

The power fuse open , if open replace it don't make jumper it b
cause fire .
the power transformer builtin fuse open/
The door micro switch open /need to replace.

Posted on Jan 03, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp R-1450 microwave

This is usually caused by either a bad door switch, a loose door switch mount, or occasionally a problem on the control panel.

On these, it's usually a broken tab on the upper switch holder.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

That sounds like what's happening when you hold the Start pad - maybe you're moving the frame and chassis enough to help it work.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be 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 you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa:.

You can probably find exploded views and order parts by entering your model number here at the Sears parts site.

The best place to order Sharp parts is Tritronics.

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

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Posted on Aug 19, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp Carousel Over the Range

When you hit Start, does the oven lamp come on but not the fan or turntable?

That would be a problem with the secondary (bottom) door interlock switch or its mount.

This is usually caused by either a bad door switch, a loose door switch mount, or occasionally a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be 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.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa:.

You can probably find exploded views and order parts by entering your model number here at the Sears parts site.

The best place to order Sharp parts is Tritronics.

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

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

Posted on Aug 21, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: R-1490 fan doesn't run or unit doesn't heat

That would be a defective secondary interlock (bottom door switch) or its mount.

We have the service manual for this model and have uploaded it to our site here to help you.

You will need the
free Acrobat Reader to view or print it in case you don't have it.

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 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.

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

Posted on Dec 17, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp R-530ES microwave oven stopped working

You have a bad secondary interlock (lower door switch) or its mount is damaged or out of alignment.

We have the service manual for this model and have uploaded it to our site here to help you.

You will need the
free Acrobat Reader to view or print it in case you don't have it.

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

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


Posted on Dec 28, 2008

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1 Answer

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It likely needs repair of the backlight circuitry.

Assuming your model number is R-630D-something, the service manuals here and here will help you.

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

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Hi, sorry fixya site is having some problems the experts are not recieving the emails with your response so we have to do it the long way and it takes ages going through all the posts we have helped on.

Ok then if the display is faint then the chances are its going to be the lcd display thats the problem as the display is working its just not lit up so replacing this will solve your problem but its not an easy job to do and is extremely dangerous microwaves are one of the riskiest things to work on as they give of radiation so breaking any seals can cause damage to anyone standing next to the microwavy.

The display is usually lit up showing the numbers but as you can see them faintly this tells us the circuit is okay and not shorting so its not anything drastic but replacing would be difficult.

If the inside is fine where the runners are then the chances are it would be worth getting repaired but if the paint has worn away or any rust is visible then the safest option is to replace it ok.
Let me know if you need further assistance ok

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The problem is in the display control unit mounted in the outer door panel.

We repair these on a regular basis for customers nationwide with our guaranteed $39.95 service.

We have full details, plus *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

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