Question about Sharp R-1505 Microwave Oven

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Why would the turntable stop turning and the unit stop heating?

The microwave was on, shut off by me, then we tried to use it again and it would not heat nor would the turntable turn. Any suggestions?

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  • 433 Answers

Hi,
there is a micro switch that signals when the door is closed. this tells the machine that it's okay to start the turntable and heating process.. if the micro switch breaks or shorts out then the switch does not send the signal so the machine does not work.
hank

Posted on Jan 21, 2015

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 1 Answer

SOURCE: Fan runs when door is closed - no heat

This is normally 1 of the interlock door micro-switches not working.

Posted on Jun 20, 2007

tiway1

Tim martin

  • 100 Answers

SOURCE: dacor dcm24s.light, fan, and control panel work but turntable and heat do not

Most likely the bottom door switch. Dacor units are built by Sharp and that switch is a very common problem. You'd either need to check the switch with an ohm meter or remove the cover of the switch to see if it's burned inside.

Posted on Dec 23, 2008

hotpoint jon

  • 353 Answers

SOURCE: Kenwood microwave not heating

cheaper to buy a new one

Posted on Jun 30, 2009

Anonymous

  • 388 Answers

SOURCE: microwave popped and now does not heat

Okay, first we need to separate the situations. You were boiling water on the stove and had the range hood fan running to **** up the steam. Then you put something in the microwave to heat and you heard a pop and then zip-o.

The water on the stove has nothing to do with the situation, the fan you turn on is not part of the microwave, so it has nothing to do with the microwave.

The pop you heard and then the humming suggests the magnetron failed. You said you found a blow fuse and replaced it and still nothing, right? The magnetron is the most likely culprit...I would think it is safe to say that the magnetron shorted and drew enough current to blow the fuse.

Replace the magnetron and if that doesn't work, let me know here. Good Luck!

Posted on Sep 14, 2009

Anonymous

  • 1 Answer

SOURCE: Sparp R 930 not heating, turntable not turning

I just repaired mine with the same symptoms. I found that the bottom microswitch on the door (there are 3 switches) was faulty. It started as open, when the door closed, the switch closed (good), but when the door was fully closed the switch was open again. I went to Electronic City with the switch in hand, they found me a duplicate that cost me $2.50. BTW - you must take out the door switch assembly, 3 screws plus wires, in order to work on the switch. Also, put the assembly back in so that the door latches close/open the switches correctly. -jk

Posted on Jan 31, 2010

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1 Answer

Oven heats, but light, fan and turntable do not come on.


Hi Ted

many microwaves have safety mechanisms to reverse, or stop the turntable if it senses resistance to the turning. This is done both because
  1. the turntable is usually driven by a small motor with a gear reduction transmission to get more torque on the glass platter and your food, and if something resists the turning, it can damage the gear train or belt if it keeps running.
  2. if you have something with liquid in it and it hits a wall, it could tip over, possibly spilling scalding liquid all over and maybe surprising the person who opens the door.
In some cases, it'll just stop and then try again the next time you run the microwave. The banging on the case sometimes turning things back on suggests that either something in the turntable mechanism is awry, or that there is a common hot wire, ground loop, or possibly fuse for the light/fan/turntable.

the manual for the oven doesn't really say anything about this.

You can see generic intructions on looking for an internal fuse here
Panasonic Microwave NN CT552W has no power plug fuse ok Has it got thermal... . Please, in particular, make sure you unplug the oven before opening anything. This is one of those devices where defeating the interlocks and having it turn on can seriously hurt you.

With regard to the turntable, in particular, it's really easy over time for exploded spaghetti sauce, spilled cocoa, and overmelted butter to have run down into the indentation in the middle of the bottom of the oven cavity. Remove the platter. Is it clean in there? Does it look like the 'this person never flosses' picture for mechanical rotors? If so, start with some kitchen cleaner and a washcloth damp (not soaked) with hot water. Let the cloth steam /warm the area a bit, wipe it down. repeat if necessary. If there's a lot of cruft built up there, that could be keeping you on the edge of safety shut-down.

Good Luck!
D

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When you press the turntable pad do you see an indicator changing in the display?

Do you hear a click when you press the pad?

If not, try opening the door then closing it and trying again and also try unplugging it for a few minutes, resetting the clock, then trying again.

If all that fails, you probably have a bad relay or connection on the control board, or a bad turntable motor.

Please write back with more details if you need further help.

Also, we do repair these control boards in case you need that help.

We appreciate your thoughtful rating of our answer.

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