Question about Sharp R-1480 Microwave Oven

1 Answer

All funtchions work except it dos'nt heat up anything Light comes on, turntable works, timer works. But no heat

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  • Kelly
    Kelly Aug 19, 2010

    No loud buzzing before? Usually when this happens there are 3 items that can cause the problem.

    1. The HV Capacitor

    2. The Power Diode

    3. The Magnetron



    I can help but need a complete model number for exact parts references and sources of parts for you to purchase. I will NOT tell you to change a part you have not proven to be defective.

    Just respond with the Model number please.



    Thanks for choosing FixYa,

    Kelly

  • bobjamieson Aug 19, 2010

    The model no is IEC 60705
    No buzzing just normal until you remove food and it's stone cold

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  • Sharp Master
  • 3,740 Answers

I tried the ICE60705 number and it did not cross http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=IEC60705

Is that a serial number by chance?

To do any of the below the chassis cover must be removed.

To perform a diode resistance check you must first ground the high voltage capacitor several times to avoid a nasty shock.

To check the Diode you have to disconnect one side if the diode before reading resistance. Read the Diode on R X 1000 and then reverse the meter leads is should only ONE way. IF it reads both directions or not at all then it has failed.

To check the HV Capacitor (After grounding) you reverse the leads repeatedlyand watch for a momentary jump on an analog meter EACH time the leads are reversed. No jump of the meter needle = bad Capacitor.

Diodes can be found here:
http://www.appliancepartspros.com/Appliance-Parts/?keyword=Diode%2c+Sharp

I know that this is an 850W free standing Microwave. I just can recall the model number from memory.

If you find either one of the 2 parts bad I recommend contacting a LOCAL appliance parts center with parts in hand for the simple fact the model number is not crossing.

Just make sure they failed per directions above before replacement.

Thanks again for choosing FixYa.

Kelly

P.s. If the above parts check out good then that leaves the door switch or the magnetron as possible failures. If the Magnetron has failed you may want to evaluate repair vs total unit replacement cost of the microwave.

Posted on Aug 19, 2010

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