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First-person, immersive — a day in the life of an appliance repairman

Idle Appliance FixFollow
Appliance repair›Repair›UF20B· ProfessionalReport
Adaptive · 1080 / 720 / 480Auto subtitlesPlayback info 04:29
Welding Recipeno level stated on camera
ModelUF20BSpreadsheet designation, not shown
CellSmall Li-ion cells (noodle-press 12V pack)02:33
Series3 S02:08Inferred from 12V
Voltage12 V02:08
BMSNoodle press’s original board
Power11 W03:35Charging power (caption says 1 W, voice-over says 11 W)
Dead battery 3.5V / 4.9V; IR 20 / 17 mΩ02:08
Kettle 1800W 8A01:22
Charges: motor ¥50, battery ¥5000:46

Creator’s own settings as stated in the video (timestamps link to the moment). Not official values — test on scrap first.

Released 2025-04-18RepairLevel Professionaldigest confidence 0.55 · pending review

Bill of materials

Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOM
AWithZ official
UF20B spot welder
×
¥569.9–599.9
WP120 Smart Pen (8 AWG)
×
¥39.9
Nickel-plated steel strip
×
from ¥5.9
Third-party partsFrom the creator’s parts list, grouped by category; links to third-party stores
KAMJOVE auto-fill kettleOther parts · Swivel motor replacement
×
Third-party
Swivel motorOther parts · Replacement
×
Third-party
Noodle-press 12V battery packOther parts · Re-cell
×
Third-party
Fnirsi multimeterMeters · Just arrived · Voltage check
×
Third-party
Internal-resistance meterMeters · IR check
×
Third-party

Description

A repairman’s day: KAMJOVE auto-fill kettle with a sluggish swivel gets a new swivel motor, ¥50; chat about the price bracket of an 1800W kettle; a noodle press won’t charge, red light blinking — the 12V battery reads only 3.5V, the usual failing of small cells, the iron burned through and they leaked, IR 20/17, all scrap; after re-celling, 12V full charge, charging at 11W 0.09A, ¥50

First job: a KAMJOVE auto-fill kettle whose swivel is sluggish — swap the swivel motor, heating is fine, fifty yuan. Second job: an electric kettle not making contact, 1800W 8A, bought for two hundred-odd; today the five-to-six-hundred all-stainless ones are built like the two-to-three-hundred ones, imitating the American Westinghouse (Westinghouse six hundred to a thousand). Third job: a noodle press (a viewer found him on Douyin): won’t charge properly, red light keeps blinking, never got wet; the new multimeter (Fnirsi) has a nice clear display; on the DC volts range the battery is flat — should be 12V, only 3.5V, and it won’t charge (the 4.9V won’t rise); the battery leaked — the usual failing of these small cells, the cell gets burned through while soldering and the electrolyte leaks, the cells are scrap; internal resistance reads 20/17 (mΩ); re-cell (new cells spot-welded, no narration); OK, full charge; charging at 11W (caption says 1 W) 0.09A, 12V, no problem; ¥50 for the repair, the noodle press cost two hundred-odd. Comments: pure hobbyist; the coupler is ¥10; this guy is skilled and stocks every part; why bother fixing it for 50; same noodle press, same problem.

Outcome

GoalThree jobs in a day: auto-fill kettle motor, kettle consult, noodle-press battery
BuildNoodle-press 12V battery pack replacement (original cells burned through and leaked)
Result12V full charge, charging normally, ¥50 · verified on camera: Full charge at 236–248s, charging at 11W 0.09A 12V

Steps6 steps · click a frame to jump

  1. 1. KAMJOVE auto-fill kettle, new swivel motor, ¥50

    Swivel sluggish, swap the swivel motor; heating fine; fifty yuan.

    00:00 – 00:53
  2. 2. Kettle with poor contact; 1800W 8A; price chat

    Is it warped and not making contact; 1800 watts, 8 amps; two hundred-odd when bought, five or six hundred now; the all-stainless ones are all built like two-to-three-hundred ones, imitating Westinghouse (six hundred to a thousand); it tripped.

    00:55 – 01:48
  3. 3. Noodle press won’t charge: 12V battery down to 3.5V

    A viewer from Douyin brought the noodle press, opened up; red light keeps blinking on charge, never got wet; new multimeter on DC volts on the battery: should be 12V, only 3.5V, the 4.9V won’t rise.

    01:43 – 02:21
  4. 4. Cells burned through and leaked (usual small-cell failing), IR 20/17, all scrap

    Leaked; the usual failing of these small cells, burned through while soldering and the electrolyte leaked; the cells are scrap; internal resistance 20, 17; the Fnirsi meter has a wide viewing angle; anywhere that was soldered on this side leaked.

    02:33 – 03:01
  5. 5. Re-cell (spot-welded, no narration), full charge

    Re-cell; OK; full charge.

    03:01 – 03:56
  6. 6. Charging 11W 0.09A 12V; ¥50; the noodle press cost 200-odd

    Charging 11 watts, 0.09 amps, 12 volts, no problem; fixed, how much — fifty yuan; the thing cost two hundred-odd.

    04:02 – 04:28

Bill of materials

KAMJOVE auto-fill kettle ×1Swivel motor replacement
Swivel motor ×1Replacement
Noodle-press 12V battery pack ×1Re-cell
Fnirsi multimeter ×1Just arrived · Voltage check
Internal-resistance meter ×1IR check
Spot welder (UF20B) ×1Re-cell

Measured on camera

Dead battery voltage3.5 / 4.9 V 02:08
Dead battery internal resistance20 / 17 mΩ 02:45
Charging after repair11W 0.09A 12V 04:02

Creator’s tips

  • Red light blinking and won’t fill up on charge — check the battery voltage / IR first 01:52
  • Small cells burn through and leak easily under a soldering iron, it’s a common failing — spot-weld them instead 02:33

Pitfalls

  • Original cells burned through by the iron, leaked, all scrap 02:33

Li-ion safety

  • A leaked cell must not be reused 02:33
DIY lithium packs can catch fire: check cells for shorts before welding, always add a BMS, never skip insulation and fusing on high-current builds.

Quotes

“These small batteries, it’s their usual failing — while soldering, the cell gets burned right through and the electrolyte leaks out” 02:33

Cost & time

Auto-fill kettle motor¥50
Noodle-press battery replacement¥50
Total¥100

Comments 95· 10 real comments collected

Comment insightsanswered 0 · open 1 · corrections 2

Open questions

Same noodle press, same problem 1

Corrections from viewers

A coupler is ¥10 6Doubtful
Why bother fixing it for ¥50 1Doubtful
Skills / equipmentChargesSpare parts
♚
♚诠释♚IU幸福♚1 yr ago · Hunan

Pure hobbyist

1
1号技师小轩1 yr ago · Guangdong

A coupler is ¥10

黛
黛西影视1 yr ago · Jiangxi

First comment

涵
涵梦1 yr ago · Shandong

You can just tell this repairman is highly skilled

衡
衡水桃城区家电水电上门快修1 yr ago · Hebei

Just this professional repair equipment is one in a hundred, first-rate skills, respect — creator liked

起
起风了1 yr ago · Hebei

First-rate skills — creator liked

哆
哆啦a梦。1 yr ago · Fujian

This kettle is a bit pricey, this kettle is a bit pricey. — creator liked

行
行走的骆驼1 yr ago · Shandong

Why bother fixing it for ¥50

小
小雷19831 yr ago · Shanxi

Your parts stock is really complete! Awesome

钞
钞票好多张女士10 mo ago · Shanxi

Same noodle press, same problem

♚
♚诠释♚IU幸福♚1 yr ago · Hunan

Pure hobbyist

1
1号技师小轩1 yr ago · Guangdong

A coupler is ¥10

黛
黛西影视1 yr ago · Jiangxi

First comment

涵
涵梦1 yr ago · Shandong

You can just tell this repairman is highly skilled

衡
衡水桃城区家电水电上门快修1 yr ago · Hebei

Just this professional repair equipment is one in a hundred, first-rate skills, respect — creator liked

起
起风了1 yr ago · Hebei

First-rate skills — creator liked

哆
哆啦a梦。1 yr ago · Fujian

This kettle is a bit pricey, this kettle is a bit pricey. — creator liked

行
行走的骆驼1 yr ago · Shandong

Why bother fixing it for ¥50

小
小雷19831 yr ago · Shanxi

Your parts stock is really complete! Awesome

钞
钞票好多张女士10 mo ago · Shanxi

Same noodle press, same problem

♚
♚诠释♚IU幸福♚1 yr ago · Hunan

Pure hobbyist

1
1号技师小轩1 yr ago · Guangdong

A coupler is ¥10

黛
黛西影视1 yr ago · Jiangxi

First comment

涵
涵梦1 yr ago · Shandong

You can just tell this repairman is highly skilled

衡
衡水桃城区家电水电上门快修1 yr ago · Hebei

Just this professional repair equipment is one in a hundred, first-rate skills, respect — creator liked

起
起风了1 yr ago · Hebei

First-rate skills — creator liked

哆
哆啦a梦。1 yr ago · Fujian

This kettle is a bit pricey, this kettle is a bit pricey. — creator liked

行
行走的骆驼1 yr ago · Shandong

Why bother fixing it for ¥50

小
小雷19831 yr ago · Shanxi

Your parts stock is really complete! Awesome

钞
钞票好多张女士10 mo ago · Shanxi

Same noodle press, same problem

Show 2 more comments