20 Most Recent Sharp R-1872 Convection/Microwave Oven Questions & Answers


test the thermal fuse for open or bad contact with VOM
2)check the hooks door, or release door button, +switch door for open with VOM.
see the diagram for troubleshooting.
Gd bless you
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Sharp R-1872... | Answered on Jul 15, 2012


There are several possible causes... none of which are user serviceable. Take unit to a shop for repair.

Possible problems include door switch, Magnetron, rectifier, control relay, etc.

Sharp R-1872... | Answered on Apr 12, 2010


Yes, this is a common item. Any appliance store that handles the Sharp line will be able to order the racks for you, if they do not have them in stock.

Sharp R-1872... | Answered on May 17, 2009


Info on ordering Sharp UK parts / spares is here.

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

Sharp R-1872... | Answered on Apr 16, 2009


Did it have the installation instructions? That will list the part numbers you need.

If not, the original part number for the installation instructions was TINSEB371MRR0, which was replaced by TINSEB141MRR0. (both end in zero, not "oh")

You can get the latter via Encompass (formerly Tritronics, the best place to get Sharp parts).

Or you can call them toll-free at 866-779-5835, which will get better results. They should also be able to tell you the parts you'd need to install it.

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

Sharp R-1872... | Answered on Jan 13, 2009


I have this model. Press clear then press Auto/Clock. Enter in the time eg 700 then press Auto/Clock again. The time should now be set

Sharp R-1872... | Answered on Dec 11, 2007


Hi Timothy, your Microwave Sharp Half Pint, does not have any receptacle for batteries, therefore, if unplugged, it cannot generate any sound
As Robert Oliver suggests, notice that another device nearby, that if it has batteries, may be making that sound
I hope you find the origin of the beeper
Greetings Franco Dosil

Hola Timothy, tu Microondas Sharp Half Pint, no posee ning?n recept?culo para bater?as, por lo tanto, si esta desenchufado, no puede generar ning?n sonido
Como te sugiere Robert Oliver, f?jate que otro aparato pr?ximo, que si tenga bater?as, pueda estar haciendo ese sonido
Espero que encuentres el origen del emisor de pitidos
Saludos Franco Dosil

Sharp Microwave... | Answered 31 minutes ago


You should check for 3 volts on sec coil supply for magnetron but do this check with the hv capacitor and hvr disconnected if 3volts is present , most probably your magnetron is deffective, replace it with the same type

Sharp Microwave... | Answered 21 hours ago


Clean the temperature sensor in the cavity.

Sharp Microwave... | Answered on Aug 28, 2019


Sounds like a door latch needs an adjustment that only a qualified technician can perform for safety reasons.

Sharp Microwave... | Answered on Aug 28, 2019


Try unplugging uni t for 10 seconds,then plug back in. If that doesn't work, contact a technician. For service.

Sharp Microwave... | Answered on Aug 28, 2019


Check your users manual for installation instructions. then reverse engineer them.

Sharp Microwave... | Answered on Aug 28, 2019


Line Fuse
If too much current passes through the microwave circuitry, the line fuse will blow. If the line fuse blows, the microwave won't start. To determine if the line fuse is at fault, use a multimeter to test it for continuity. If the fuse does not have continuity, replace it. In addition, you should investigate and resolve the problem that caused the fuse to blow. If you don't resolve the underlying issue, the new fuse will blow too. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the line fuse.)

Sharp Microwave... | Answered on Aug 01, 2019

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