Parts for HRS3912US — JVC

We found 19 parts confirmed to fit the JVC HRS3912US.

Compatibility table

All 19 confirmed parts, ordered so parts that fit fewer models (more specific to this appliance) appear first.
Part #PartAlso fitsReference price
LP21080009ACassette Door2 models$16.98 · Amazon
LP10418002CCover3 models$34.91 · Amazon
LP40816001BGear4 models$10.06 · Amazon
LP31095001AKnob Assembly4 models$5.56 · Amazon
LP40815001AWorm Gear4 models$10.06 · Amazon
QAU0255002Tuner5 models$121.99 · Amazon
462014623Goldstar 4700pf 1kv6 models$5.60 · Amazon
GP1UM291QKIr Detect7 models$14.90 · Amazon
QSW0602004Switch7 models$10.89 · Amazon
QQL29BJ100ZCoil10 models$2.48 · Amazon
LP30959002AGear Load10 models$10.06 · Amazon
AN3663FBPIntegrated Circuit10 models$52.56 · Amazon
2SK2043CB14Transistor10 models$15.73 · Amazon
QAR0204002Motor11 models$78.59 · Amazon
ECQU2A683MVPanasonic Capacitor11 models$3.07 · Amazon
PELN0832Transformer14 models$10.33 · Amazon
LP30005010ABelt15 models$25.49 · Amazon
QSW0456002ZTact Switch16 models$2.48 · Amazon
QAR0023001Motor47 models$25.29 · Amazon

Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.

Common failure areas on this model

The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Parts in this group on HR-S3912US: LP21080009A (Cassette Door), LP40816001B (Gear), LP40815001A (Worm Gear), QAU0255002 (Tuner), 462014623 (Goldstar 4700pf 1kv), GP1UM291QK (Ir Detect), QSW0602004 (Switch), QQL29BJ100Z (Coil), LP30959002A (Gear Load), AN3663FBP (Integrated Circuit), 2SK2043CB14 (Transistor), QAR0204002 (Motor), PELN0832 (Transformer), QSW0456002Z (Tact Switch), QAR0023001 (Motor).

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Parts in this group on HR-S3912US: LP10418002C (Cover), LP31095001A (Knob Assembly).

Controls, timers and wiring

Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.

Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.

Parts in this group on HR-S3912US: ECQU2A683MV (Panasonic Capacitor).

Drive system (belts, pulleys, motors)

Symptom: A drum or tub that won't turn, a burning-rubber smell, or a loud thump or squeal during a cycle.

Check: With power off, turn the drum or tub by hand -- resistance or grinding points to the motor or a bearing, and a cracked, glazed, or snapped belt is visible once the cabinet is open.

Parts in this group on HR-S3912US: LP30005010A (Belt).

Before you buy

Match HRS3912US exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.

How to confirm this is your model

Check inside a door opening, on a back or side panel, or behind a removable panel or drawer for a label printed with the model and serial number. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.