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This page includes the brands:
Panasonic - Quasar
Page 1

Copyright © 1998-2013 J. Carlton Gallawa
All Rights Reserved Worldwide
UPDATED JUNE 2012
A to J | K to 0 | P to Q | R to Z | Home Page | Safety Info | Back | CD-ROM

Instructions on How To Diagnose and Repair Microwave Oven

    FREE Super Microwave Oven Troubleshooter
    PUZZLED by microwave repair? Fix any microwave oven with this new FREE troubleshooting guide
  1. After reading the safety precautions , find the brand and model number, or the number closest to the model you are repairing.
  2. Find the symptom(s) that most closely match the symptom(s) being displayed by the oven you are repairing.
  3. Follow the specific troubleshooting and/or repair instructions to complete the repair. Click on highlighted text for a detailed explanation of that procedure.
  4. Since this database is constantly being updated and appended, if you don't find what your looking for, try again at a later time.
  5. Click here    if you would like to be notified by e-mail when this page is updated. 
Please Note:
  • The manufacturers' part numbers and prices listed here are subject to change without notice.
  • The individual model numbers are not necessarily arranged in numerical order
We hope that you find the information here helpful ...

Important Safety Information

microwave oven safety precautions Repairing a microwave oven is a dangerous task. For your personal safety, please do not proceed unless you fully understand and are prepared to follow carefully these appropriate safety precautions .

Disclaimer: The author assumes no liability for any incidental, consequential or other liability from the use of this do good work information. All risks and damages, incidental or otherwise, arising from the use or misuse of the information contained herein are entirely the responsibility of the user.  Although careful precaution has been taken in the preparation of this material, we assume no responsibility for omissions or errors.

Copyright © 1996-2013 by J. Carlton Gallawa
All Rights Reserved Worldwide
© Copyright Information


MICROWAVE OVEN REPAIR CASE HISTORY DATABASE (CONT'D)

PANASONIC
Model: NE-7030
Symptom: Will not start unless door is pushed hard.
Problem: Burned connection at lower interlock switch.
Test: Interlock Switch Test
Solution: Replace switch and repair burned connections. Repair Info:Soldering the wires directly to the terminals provides the best connection, but installing new slip-on connectors is adequate.
PANASONIC COMMERCIAL (WARNING! PROFESSIONAL TECHNICIANS ONLY)
Models: Pro-1 and Pro-2 models
Symptom: Oven displays any of the following error codes: F81, F82, F83 or F84
Problem: There is no voltage being supplied to the primary winding of the high voltage transformer during a cook cycle.
Note: High voltage components, such as the magnetron, capacitor, diode and transformer do not cause these codes.
Test: Observe Important safety instructions
      • Troubleshoot the line fuses
            • PRO-1 models: Short in lower magnetron HV circuit can cause left fuse to blow
            • PRO-1 models: Short in upper magnetron HV circuit can cause right fuse to blow
            • PRO-2 models (NE-2180): Short in right-side magnetron HV circuit can cause front fuse to blow
            • PRO-2 models (NE-2180): Short in left-side magnetron HV circuit can cause rear fuse to blow
            • PRO-2 models (NE-3280): Short in lower magnetron HV circuit can cause front fuse to blow
        • Check the interlock switches:Interlock Switch Test
        • Visually inspect the relays on the LV (relay) board for burned connections
        • On PRO-1 models inspect the main control board (DPU) and the LV (relay) board for cracked or burned solder joints, poor connections, or a buildup of conductive residue from moisture
Solution: Replace defective part(s) and/or repair as necessary
PANASONIC COMMERCIAL (WARNING! PROFESSIONAL TECHNICIANS ONLY)
Models: NE-1057, NE-1057C, NE-1257, NE-1077, NE-1277, NE-1457, NE-1457C, NE-1757, NE-1477, NE-1777
Symptom: Code "F11" or "F12" appears on the display intermittently
Problem: Moisture is accumulating on control panel from steam rising out of the door.
Solution: Install foam sealer (cushion rubber) along lower edge of control panel escutcheon. Part # A8251-3180
PANASONIC COMMERCIAL (WARNING! PROFESSIONAL TECHNICIANS ONLY)
Models: NE-1457, NE-1757
Symptom: "F12" on display
Problem: Defective lower magnetron tube
Test: Magnetron Tube Test
Solution: Replace magnetron. Part # 2M210-M1. Price:$95.00
PANASONIC COMMERCIAL (WARNING! PROFESSIONAL TECHNICIANS ONLY)
Model: NE-1457
Symptom: Weak heat and low humming sound
Problem: Weak magnetron tube
Solution: Test each magnetron output independently to determine which magnetron is weak
Test: Output Wattage Test
Solution: Replace defective upper magnetron. Part # 2M210-M. Price:$95.00
PANASONIC COMMERCIAL (WARNING! PROFESSIONAL TECHNICIANS ONLY)
Models: NE-1757A, NE1258R, NE1257R, NE1757R, NE2157R, NE2180, NE3280
Symptom: Weak heat or intermittent heat
Test: Output Wattage Test
Problem: Burned slip-on connector on magnetron filament-voltage input terminal
Solution: Repair burned connection as follows: Observe Important safety instructions .
    • Either replace burned connector and clean up magnetron terminal;
    • or remove burned connector, clean up terminal and solder wire directly to the terminal;
    • or install Panasonic replacement kit (Part No. A604K0000AP). Kit includes terminal, metallic ring and insulation sleeve
PANASONIC
Model: NE-6850
Symptom: Sometimes the turntable doesn't turn.
Problem: Weakened turntable drive belt
Solution: Replace the belt. Part # ANE4110Q50GN. Price:$4.80
PANASONIC
Models: NE-8021, NE-8051, NN-4208A, NN-5407, NN-5500A, NN-5512A, NN-6370WM, NN-6371WM.N, NN-6372AWM, NN-6381A, NN-6482A, NN-6503A, NN-7524AK
Symptom: No heat, weak heat, or intermittent heat
Problem: Magnetron filament connectors have loosened and, due to resistive heat, the terminal connections have deteriorated and burned off.
Solution: Repair defective terminals as follows:Either (1) Cut away burned wire, clean the magnetron terminals, and replace the slip-on connectors, or (2) Cut away burned wire and connector(s). Clean terminals to prepare for soldering. Solder filament leads directly to magnetron terminals. Be careful not to apply soldering heat any longer than necessary
PANASONIC
Model: NE-200010P
Symptom: "PPPP" on display
Problem: Defective oven temperature sensor
Solution: Replace temperature sensor, part # ANE604LK20AP, sub to ANE604LL20AP
To Page 2 (P to Q) Next

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Parts Suppliers and Manufacturer Contacts

ContactYou can contact these parts suppliers and microwave oven equipment manufacturers directly for replacement parts, product literature, dealer locations, technical assistance, etc. Please e-mail additions or corrections to: j.gallawa@cox.net

Selection Keypad Microtech Home Page Important Safety Information Samsung through Whirlpool Panasonic through Quasar Kenmore through Montgomery Wards Amana through JCPenney GlossaryGlossary of Electronic and Microwave Oven Related Terms

EMAILSubmit your own repair tip j.gallawa@cox.net 


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Copyright Information

Unless otherwise noted, all materials at this cite (including without limitation all text, HTML markup, graphics, and graphic elements) are copyrighted ©, 1989-2013 by J. Carlton Gallawa. The material available through this site may be freely used for attributed noncommercial educational purposes only. We ask that due credit and notification be given the author.

All materials appearing on this website may not be reproduced, stored in any retrieval system, or used in any way for commercial purposes without the express prior written permission of the copyright holder.

Send correspondence to: Microtech, P.O. Box 940, Gonzalez, Florida 32560

Disclaimer: The author assumes no liability for any incidental, consequential or other liability from the use of this information. All risks and damages, incidental or otherwise, arising from the use or misuse of the information contained herein are entirely the responsibility of the user. Although careful precaution has been taken in the preparation of this material, we assume no responsibility for omissions or errors.

©1998-2013 J. Carlton Gallawa . All Rights Reserved Worldwide
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