Question about Sharp R-1460 Microwave Oven

1 Answer

No Power at all after loud short buzzing sound

My over-the-range microwave has no power going to it whatsoever. I was heating a glass of milk, and the microwave had only been running for 3 to 5 seconds when suddenly it made a loud buzzing sound for half a second and then the whole unit shut off. Now there is no light, no clock, no range fan...nothing! The entire unit is dead. There was no metal in the microwave. The circuit breaker has been checked. What else can I try?

Posted by on

  • Nowatzki Aug 24, 2007

    Oh no, you broke my heart. I was hoping this was some parts replacement issue. Farewell, old microwave, I hardly knew ye.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 661 Answers

Sounds Like an electrical fault in the Micro, Sorry but this is broken.... If this is within warranty (do check as some warrantys are for 3 yrs or more) get the manufacturer to replace/repair it for free. you could get it serviced, but it is probably cheaper to buy a new one.

Posted on Aug 24, 2007

Ad

1 Suggested Answer

Anonymous

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Microwave not heating


Hi Edward
I should mention (although it's pretty obvious) that Microwave Energy is DANGEROUS.
So it's better not to fiddle with the internals.
A quick test can be done to check for electromagnetic energy (in the 2.45Ghz range) inside the oven. Put a glass of water in the Microwave Oven and place 2 strips of tinfoil across the top of the open glass above the water. Put the strips close together but not quite touching then close the door.
Start the microwave & look through the glass window. Listen & Watch for sparks between the tinfoil pieces. If there are sparks then your Microwave Oven is generating or transmitting electromagnetic energy from the magnetron tube unit.
If it's working Don't leave it sparking too long. The tinfoil can get hot enough to burn. The glass of water is to absorb any microwave energy.
There is an interlock switch on the door for safety to protect you from microwaves leaking out of the door cracks. This switch fails to function sometimes. But normally the oven won't even try to power on or spin the turntable (or Fan) if this interlock fails.
If there are no sparks then your Magnetron is shot. Its usually not worth fixing them unless you know of a specialist technician who is qualified and competent with microwave equipment.
Hope This Helps
..... Trevor

Jul 15, 2014 | GE Profile Spacemaker Over-the-Range...

Tip

MICROWAVE POWER TEST Hi Everyone, In this tip I will show you how to easily test...


MICROWAVE POWER TEST

Hi Everyone,

In this tip I will show you how to easily test your Microwaves power. If it is sufficient, or if it is not heating effectively anymore.

Non heating Microwaves are a common issue, and the most likely component that is faulty is the Magnetron - These days Magnetron's are quite expensive (usually about 50% the price of a new Entry Level Microwave). Low heating could mean a Magnetron becoming faulty (unlikely, as a Magnetron either works, or it doesn't work)

Tools required: A Normal Glass (Heat-resistant, in other words Microwave friendly), Water (Room Temperature) , a Centigrade Thermometer (Can get this at any Pharmacy)

Procedure:
1) Fill a glass with approx. 125 ml water. Use water at room temperature (from the tap), avoid using refrigerated water as this will work against the test we are doing.
2) Measure the initial temperature of the water with the thermometer (It should be between approx. 10 & 20 degrees).
3) Place the glass with the water about 2 cm away from the center of the Microwave Oven plate.
4) Heat the water at full power (The highest setting possible on your Microwave) for 70 seconds.
5) Stir the water (For 5 - 8 sec).
6) Measure the final water temperature with a thermometer.
7) If the increase is 45 degrees or more, then your microwave is heating sufficiently, if not it could mean replacing the Magnetron, or purchasing a new Microwave.

I hope this guide as helped you. If it has, please rate it accordingly.

on Apr 23, 2011 | Microwave Ovens

1 Answer

Ge adora over the range microwave, runs but does not heat


Microwaves contain high-voltage parts that can be deadly, even when unplugged, unless handled correctly. Unless you are a qualified expert, don't attempt to get into its inner workings.

First, use this water method to double-check if there is actually an issue with your microwave not heating:

1. Fill a glass measuring cup with water to the 1-cup mark.
2. Set the microwave to heat on full power for 1 minute.
3. Repeat the process with fresh water a handful of times.
4. If the water is not consistently warm, your problem is confirmed.

If your microwave is failing to heat correctly, you may be on a previously programmed setting. Press the STOP/CANCEL button and start the heating process again, but use a higher power setting. This may correct the problem.

If the microwave senses an open door, it will not run. Check to see if a defective or loose door-safety interlock switch is to blame. If tightening it doesn't work, a replacement may be necessary.

Did you know? Neglecting to hit the STOP/CANCEL button on the microwave before you open the door to remove your food damages the safety switch over time.

Microwaves installed above the range may be affected by steam from cooking. Condensation collecting on the circuitry can interrupt heating. Allow the circuitry to dry out by avoiding stovetop cooking for a few days. If you're still having the same problem, it could be a loose connection in the circuitry or a faulty door safety switch.

There may be an issue with the circuit board and its connections, and that work is best left to a qualified professional.

A buzzing or humming microwave that emits a faint burning smell could signal a damaged magnetron, high-voltage capacitor or diode. Replacement magnetrons are expensive, so if a service professional determines that's the problem, you may be better off buying a new microwave. Capacitor and diode parts cost much less, but remember, you'll be paying for the expertise to have them installed correctly and safely. It may still make more sense to buy a new microwave, especially if it's a simple countertop model.

For more troubleshooting steps and simple solutions, read Microwave not heating. I hope this helps!

Sep 28, 2012 | Microwave Ovens

1 Answer

What kind of dishes can be used in my microwave oven?


You can safely use ceramic, glass, porcelain, chinaware and thermoplastic. Ensure there is no metal whatsoever on any of your dishes.

Jul 15, 2012 | Haier MICROWAVE TOUCH

1 Answer

GE Spacesaver Microwave isn't heating


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.



Load test.

A simple safety test.
Place 1/2 litre of water in a glass container. Measure the temperature of the water.
Place in microwave and heat on full power for 1minute.
Measure the temperature after it has stood for 1minute.
If the temperature difference is more than 9 degrees Celcuis the magnetron is working and producing about 700Watts of heat.
If your microwave is labelled with 900 or 1000Watts. That is about right.
If the temperature is less then the magnetron is not working properly and may need replacing.


This a only a rough guide and any doubts you should consult an authorised service agent.

Jan 29, 2011 | GE Profile Spacemaker Over-the-Range...

1 Answer

My Bosch innowave microwave oven is 3 years old. It has suddenly stopped cooking and heating food, yet the light comes on and the turntable works. Please help.


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.



Load test.

A simple safety test.
Place 1/2 litre of water in a glass container. Measure the temperature of the water.
Place in microwave and heat on full power for 1minute.
Measure the temperature after it has stood for 1minute.
If the temperature difference is more than 9 degrees Celcuis the magnetron is working and producing about 700Watts of heat.
If your microwave is labelled with 900 or 1000Watts. That is about right.
If the temperature is less then the magnetron is not working properly and may need replacing.


This a only a rough guide and any doubts you should consult an authorised service agent.


Jan 23, 2011 | Bosch Microwave Ovens

1 Answer

It does not heat evenly ... trying to warm up a glass of milk- hot and cold "layers" in the glass ( 1, or 1.5 min, on high)


It sounds like there is a problem with the magnetron or its drive. Check magnetron only by substitution and the diode/capacitor with a moving coil meter on the high Ohms range.
BEWARE DANGEROUS VOLTAGES ARE AT THESE POINTS ensure the capacitor is fully discharged BEFORE ANY EXAMINATION IS ATTEMPTED!
Hope this helps.

Nov 06, 2010 | Panasonic NN-S548WA Microwave Oven

1 Answer

I've an old Rowenta yoghurt-round with glass jars- maker and would like instructions for using it, please!


Mix 1 plain yoghurt with 1 liter UHT milk at room temperature. Fill the jars with this mix and cover them. Place the jars in the Yoghurt maker and close it with the cover. Turn the knob to 5 or 7 (it depends on the texture you like in the yoghurt) and you are all set. If you heat up the milk above 45 Celsius, turn the knob to 2 or 3.

Aug 06, 2010 | Microwave Ovens

1 Answer

Kenmore Over the Range 1000 watt Microwave with no power.


I have the same problem now did you come up with anything for this model

Jan 05, 2010 | Kenmore Microwave Ovens

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

220 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9179 Answers

Ekse

Level 3 Expert

13434 Answers

Gerry Harvey
Gerry Harvey

Level 3 Expert

1481 Answers

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

Answer questions

Manuals & User Guides

Loading...