R-3A51 (serv.man4). Countermeasure to localised scorch marks after normal cooking. - Sharp Home Appliance Technical Bulletin (repair manual)

r-3a51 (serv.man4) technical bulletin
Model
R-3A51 (serv.man4)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
34.16 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Home Appliance / Microwave Oven / Countermeasure to localised scorch marks after normal cooking.
File
r-3a51-sm4.pdf
Date

Read Sharp R-3A51 (serv.man4) Technical Bulletin online

MWO2000 05 02
Month of Issue:  
May 2000
        
Classification: 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference TBM0005241
Revision 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
Red – Carry out on all units
MODELS
All microwave ovens
SYMPTOM Localised 'scorch' marks on the oven cavity faceplate and/or the door sub-assembly
following normal operation.
CAUSE
Variation  in  the  sealing  gap  between  the  door  sub-assembly  sealer  plate  and  oven
cavity  faceplate  could  lead  to  localised  scorching.    This  phenomenon  can  be
aggravated by abnormal usage such as no-load operation.
ACTION
Suggested repair methods are as follows: -
1. Stainless Steel Cavities
Providing the ‘scorching’  is not of a severe nature: -
I. 
Rub the cavity faceplate down to remove marks.  This can be achieved by
use of a suitable grade of wire wool ensuring a uniform finish is obtained.
II. 
Replace the door assembly.
2. Painted Cavities
Unfortunately in these cases there maybe no option but to replace both oven cavity
and door sub-assembly, dependant on scorching severity.
IMPORTANT 
Normal service procedures should follow any repair work i.e. leakage checks etc, and
it  is  recommended  that  the  oven  is  run  for  a  sufficient  period  to  confirm  no  repeat
symptoms.
Display

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Here you can read online and download Sharp R-3A51 (serv.man4) Technical Bulletin in PDF. R-3A51 (serv.man4) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp R-3A51 (serv.man4) Microwave Oven. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.