Question about Sharp R-1610 Microwave Oven

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Replacement bulbs do not light. Is there a wiring problem with the bulb receptibles?

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Not one specifically to this model. You must take the cover off and check the wiring from the board to the bulb. If the wires are intact then check the bulb socket , its contacts might be off.
If the circuit with the bulb in is intact then check the relay (or the triac - depending on the version) that is powering it.

Posted on Aug 28, 2010


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Interior light bulb burned out

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  2. Light bulb socket & main control boardIf your microwave light bulb is not working after the installation of a new bulb, check the light socket as well as the wiring to ensure they are properly operating. If these sources are functioning properly, the next step is to check for a faulty control board as a possible root cause to your microwave light bulb malfunction.

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27oct: BKOK, replacing the light bulb is not simple, and requires a T15 security bit. Our microwave bulb blew this week, and sears on-line was not helpful, so I took the cover off and removed the bulb and the filament is blown. Here is what you need to do. Sorry, it's not easy. 1) remove the cover - this has 3 standard black phillips head screws, 2 on one side and 1 on the other. Then, there are 4 standard silver phillips heads on the back, plus two size 15 Torx screws that require a security bit to remove. 2) remove the 3 sided cover by prying the bottom and then pushing the cover towards the back of the unit to remove the latch keeping the cover secure to the front of the machine. 3) Now, there is a wiring diagram on the cover, use this to locate the bulb, but I will tell you it is on the top of the unit near the control panel. The white plastic connector has 4 wires going into it... Red, Yellow, Brown and Black. The bulb is secured with one screw and permanently attached to a trapazoidal base. The markings on my bulb say KEI, Korea, 125V,30W. 4) Remove the screw and lift the bulb assembly out and see if the filament is blown. The bulb is clear and so it's easy to see the filament. 5) I'm gonna go to local repair shop to see if they have replacements, but I usually go to AppliancePartsPro. They do have this bulb listed for under $5. , which is ok, but I hate paying shipping on such a small piece. Maybe I'll buy some other stuff. Good luck, it's not easy, and not a easy do-it-yourself bulb replacement. But if you are mechanically and electrically competant, it's not bad. But seriously, this is a lot of work to replace a light bulb. I'll take a picture and post that as well

Jul 05, 2012 | Kenmore Microwave Ovens

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Mar 04, 2011 | Kenmore Microwave Ovens

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The range-top light blew and now replacement bulbs

My Whirlpool/Roper microwave/hood combo has the same problem. I replaced the bulb twice, checked the bulb and it works, but not in the microwave. I wrote to Whirlpool asking about the problem. Haven't heard from them yet.

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How to replace a blown bulb

  • check the size of the bulb required before you buy a replacement bulb. Most use a 40 watt appliance bulb. I
  • Confirm that the oven is not on. Allow it to cool to room temperature if it has recently been used.
  • Open the oven door and use a flashlight to light the area where the bulb is located. Do not put weight on the door itself, but go in at an angle or sideways.
  • Find the shield or cover over the bulb, gently pull or twist it off. Some glass covers are surrounded by a wire clip or a ring that is screwed in to the back then Gently remove either the wire clip or ring. Since the cover is most likely glass, be careful then Unscrew the entire glass cover similar to a jar lid in older versions of ovens. repeat process if there is more than one bulb..hope this helps pls do let me know
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    Replacement bulbs still do not work

    Most electronic control boards have undersized circuit wires that can't handle a catastrophic lamp failure. The circuit trace will open like a fuse. If you or someone knows how to use a soldering iron, this can be repaired.
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    2. Remove screw above button panel. Push up on panel to remove.
    3. Remove circuit board from panel. Look on reverse side for open circuit trace.
    4. Repair circuit trace...lights work again....

    If you need further assistance, let me know

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    Remove the light bulb, if it still blows the fuse then it's not a bulb problem. More than likely the Magnetron has gone bad and is shorting. Be extremely carefull working inside any Microwave, it can be very dangerous! Sorry to say, but it sounds like it would be an expensive repair compared to a new (or used) oven.

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    Hotpoint RVM1425BA-003 Microwave Oven Stovetop Light Does Not Work

    The problem is almost certainly on the control panel, which we repair nationwide for $39.95 postpaid.

    This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

    This often can affect the exhaust fan operation, too. The lights and fan can be inopoerable or stuck on.

    If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and

    disassembly information at our site, linked here on Fixya:


    Oct 14, 2007 | Hotpoint RVM1425 Microwave Oven

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