20 Most Recent
Sharp R-1481B Microwave Oven Questions & Answers
Iberna oven ,when i switch on the oven it chips
First of all check the inside of the cooking area for chips in the paint and burn marks. If there are none then you may repair this unit. Open it up and check the many thermal overloads for open circuit. Then check for burned wires and repair any if found. Then replace the fuse if blown. Then change the magnetron and possibly the capacitor. Also verify that the door closes properly and that the circuit board has no burned components or burned circuit traces. Sometimes the relays stick and need replacing but that would not cause the breaker to trip.
R-1481 start button won't work
I have a r-1482 model so I don't know how close they will be. The biggest issue I found so far with my particular model, yours my be the same, is the door safety micro switches fail primarily from opening the door while the unit is in the process of cooking which causes them to arc and burn the contacts resulting in premature failure. With an ohm meter, check the resistance of the contacts of each switch individually with the COM terminal lug temporarily removed and ensure the closed resistance is 0 ohms and infinity when the contacts are open. Measure from the COM terminal to the terminal in use either N.O. or N.C., with the switch button NOT depressed the N.O. will be open while the N.C. will be closed and with the button depressed they will be opposite, in other words N.O. will be closed and N.C. will be open. Another thing to check is that the door hooks aren't broken (they activate the safety switches. Should you remove the switch bracket to replace the micro switches, make sure you wire the switches exactly the way they were COM to COM, NC to NC & NO to NO, mount them in the bracket the exact way they were and adjust the bracket so that the switch buttons are just to the point of being fully depressed and no more when the door is fully closed. The micro switches may be different in model numbers but you can sub with a micro switch that has all three COM, NC, NO terminals and only use the terminals in use for the given switch. I used Omron p/n: D3V-16G-1C25-K from Mouser Electronics (800) 346-6873. Since you didn't indicate the control panel was not operational I won't go into that area. I can't say if the timer will count down or not if the micro switches are bad, but it's a possibility, further pointing to the switches. If the control panel or MW tube is bad it's my recommendation to buy a new oven, though you can get new MW tubes, diode & capacitor, it's not worth the shocking experience to the human body, not to mention the MW radiation.Good luck if you still have the oven and decide to take it one step further.
Door
how old is it? if it is old then, it is just wear n tear. time to get another one.
The light on the bottom of my r1481 microwave
The problem is a shorted relay no the control circuit board.
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.
We
regularly repair such control units for customers nationwide by mail
for $39.95 postpaid with a one-year guarantee.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
Sharp r-1481 950 Watt microwave oven problen
Found the answer by calling a Sharp technician and they said it was the magnetron tube, which is not worth fixing :( Thought I'd pass this on to anyone that has yet to find out.
R1481 no manual
We have
the full service manual for this model and have uploaded it to our
site here to help you.
It will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.
You will need the free
Acrobat Reader
to view or print it in case you don't have it already.
It may be the fuse, cavity thermal cutout, or magnetron thermal fuse.
It may also be a blown trace or bad low voltage transformer on the control panel.
We regularly repair such control units for
customers nationwide by mail for $39.95 postpaid in about a
week with a one-year guarantee.
If it needs the transformer, that would add $25 to the repair cost.
The best place to order
parts for this brand is Encompass (formerly Tritronics).
Or you can call them toll-free at 866-779-5835.We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
A little louder than normal;no heat
A loud buzz, hum, or groan is usually a
shorted high voltage rectifier diode, but a sound like gurgling into an
empty coffee mug is one symptom of a failed magnetron, and yet the mag can
be bad without that sound.
At
our Web site, we have a video available showing how to remove a typical
over the range control panel assembly in under 5 minutes.Accessing some components for testing and possible replacement will require you to remove the oven from the wall.
If
so, the installation instructions are very handy, and it's best to have
two people since the microwave can be heavy and awkward.
Here are some links you
or someone you know can use for test help, but read their safety
warnings first:
http://www.gallawa.com/microtech/diode.html
(if it's not shorted, it's
probably okay)
http://www.gallawa.com/microtech/mag_test.html(even
if the magnetron passes these tests, it can still be bad. If
you have high voltage and the diode is good, assume the magnetron is
bad)
NOTE: FixYa's Web site is currently not notifying us when replies to our Clarification Requests are posted.
So please reply back directly to me with your brand and full model number from the tag in or on the unit for more help or free do-it-yourself tips or an estimate if required.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.William E. Miller
[email protected]http://www.microwavedisplay.com
We're happy
to help you with free advice and we'd appreciate your thoughtful rating
of our answer
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