LG
LG Microwave Time-Delay Fuse 3B74133Q AP4440371 PS3522743
3B74133Q
Availability
Ships Within 1-3 Business days
Part Number
3B74133Q
MPN
3B74133Q
Manufacturer
LG
Compatible Brands:

Quality Parts
Easy to Install
Reliable
Long-Lasting
Frequently Bought Together





Microwave Time-Delay Fuse – LG
Microwave Fuse for compatible microwave appliances. Part number 3B74133Q. Verify the appliance model and part number before ordering.
Compatible Part Numbers
- 3B74133Q
- AP4440371
- PS3522743
Key Features
- Product type: Microwave Time-Delay Fuse
- SKU / MPN: 3B74133Q
Fixes These Symptoms
- Appliance does not start
- heat
- cool
- fill
- drain
- or cycle correctly
- intermittent operation
- error code
- component tests open
- shorted
- or outside specification.
Compatible Brands
- LG
Always verify your complete appliance model number before ordering.
Installation Guidance
Unplug the microwave. Internal high-voltage components can retain a lethal charge after power is removed. Follow the service manual, discharge the high-voltage capacitor using approved procedures when cabinet access is required, document wiring and orientation, and verify all shielding, interlocks, and covers before operation. Qualified microwave service is strongly recommended.
- Unplug the microwave. Internal high-voltage components can retain a lethal charge after power is removed. Follow the service manual, discharge the high-voltage capacitor using approved procedures when cabinet access is required, document wiring and orientation, and verify all shielding, interlocks, and covers before operation. Qualified microwave service is strongly recommended.
3B74133Q, AP4440371, PS3522743
- Appliance does not start, heat, cool, fill, drain, or cycle correctly; intermittent operation; error code; component tests open, shorted, or outside specification.
Not sure if this part fits your model? Our appliance experts can confirm compatibility — contact us.
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