Microwave
Fault Finding Guide
Symptom/Fault
Cure
Arching inside the cover. Magnetron, Transformer, Loose terminals. Blower/Fan motor slow. Loose terminals, Build up up grime, Shorted coils. Burning smell. Transformer, Magnetron, Plastic covers. Gets too hot in convection mode. Thermistor. Shock from oven case. Static from carpets, Poor earth connections. Intermittently blowing fuse. Door micro switches, Poor connections. Blows fuse when the door is opened or cook button pressed. Door interlock switches. Display as fast countdown. Leaky triac on control pcb. Will not stop cooking. Triac on control pcb. Interference to radio tv, etc. Mains filter, Magnetron. Intermittent or slow cooking. Magnetron, Transformer, Triac, Control pcb. Cuts out after about 10 mins. Magnetron. Door cracked or melted. Magnetron.
The original microwave oven was patent by Mr.Percy.L.Spencer
Just enter your model model or part of the number i.e. MX708*
Enter the Part Number or your model number in the search box (without dash's or spaces i.e. R4E54M or you can if you wish enter Part of it i.e. R4E5* this will show all items starting R4E5)
For Ordering & spares information click
here
Danger!
Never tamper with the safety interlock switches or the fuse.
Disclaimer:
We assume no liability for any incidental, consequential or other liability from the use of this information or parts supplied. 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. You can receive a serious electrical shock from the components inside a microwave oven-even when it's unplugged! Only a qualified engineer should perform any repair.
