A first-person, immersive day in the life of an appliance repairman

A snowy day that bodes well: a broken carbon-fibre umbrella shaft fixed and painted with rust-proof coating; a fan’s imported speaker brought back from the US sat too long, the cells leaked and ‘starved to death’ at 322mΩ, scrap — two power cells spot-welded in, 8.3V full charge, it sings on test; a Dyson (real or fake) hair dryer whose motor won’t spin (30.5 → burnt motor) is revived at once with a replacement motor; a Haier MOOKA TV that keeps rebooting = main board under-powered, a flawless upgrade with factory data

Opens on a snowy day; a carbon-fibre umbrella that stands up to wind, shaft broken in one spot, fixed and painted with rust-proof coating. A fan’s imported speaker (brought back from the US) has sat for a long time — not that I won’t work for fans, just too much on; once it reaches the Boring Appliance Repair Workshop it must get done: open it up, the cells have gone bad and leaked, starved to death, 322mΩ, scrap, big cells; Yu brand; fit two power cells (spot-welded, the high-power unit with the red leads); measure 8.3V, full charge; reassemble and test whether it sings — it sings. A hair dryer, real or fake Dyson unknown, motor won’t spin, one squeak and nothing, reading 30.5, diagnosed as a burnt motor; find a motor (41.3), swap it in, perfect, very OK, revived at once; test again, perfectly repaired, real or fake Dyson, all sorted. A Haier MOOKA TV that keeps rebooting: upgrade it, the upgrade must use factory data, durable, no freezing or crashing; slow first boot after the upgrade is the system buffering; the earlier rebooting was the main board being under-powered; no lag now, start enjoying it, sound and picture perfect, the overtime wasn’t wasted; TV questions answered by Teacher Zhang in the comments. 138 comments: rename it Fix-Anything (creator liked it); where did your son go (I’ll call him back tomorrow); the Dyson sometimes doesn’t respond when powered (minor issue); boss, is my Xiaodu done (hang on); brought back from the US? plenty at Nangong market (you know too much); a 511 umbrella leaks (you have one).

Outcome

Steps5 steps · click a frame to jump

1. 
   1. Broken carbon-fibre umbrella shaft fixed, rust-proof coating painted on

   The umbrella stands up to wind well, carbon fibre, the shaft is fine but the piece above broke; fixed and solid, a coat of rust-proof paint.

   00:04 – 00:32
2. 
   2. Fan’s imported speaker sat too long: cells leaked, starved to death, 322mΩ, scrap

   The fan dropped it off a long time ago, too much on; imported speaker, must get it done; open it up, the cells went bad and leaked, starved to death, 322 milliohms, scrap, big cells.

   00:32 – 01:09
3. 
   3. Fit two power cells and spot-weld; 8.3V full; reassemble, test, it sings

   Yu brand; fit two power cells (spot-welded); 8.3, full charge; reassemble and test whether it sings; power on, it sings.

   01:12 – 01:44
4. 
   4. Real-or-fake Dyson hair dryer: motor won’t spin, burnt motor, replacement motor revives it

   Real or fake, no idea; motor won’t spin, one squeak and nothing; reads 30.5 → burnt motor; find a motor (41.3), perfect, very OK, revived at once; test again, perfectly repaired, real or fake Dyson, all sorted.

   02:02 – 02:55
5. 
   5. Haier MOOKA TV keeps rebooting: factory-data upgrade, main board under-powered, perfectly repaired

   TV keeps rebooting; the system upgrade needs factory data, durable, no freezing; slow first boot is the system buffering; the earlier rebooting was the main board being under-powered; no lag now, start enjoying it; sound and picture perfect, the overtime wasn’t wasted; questions answered by Teacher Zhang in the comments.

   02:54 – 03:36

Bill of materials

Measured on camera

Creator’s tips

• A cell left unused that has leaked and reads hundreds of milliohms is scrap, no question 00:58
• TV upgrades must use factory data, durable, no freezing; a slow first boot is the system buffering 02:54
• If a hair dryer motor won’t spin, use the reading to diagnose a burnt motor 02:02

Pitfalls

• The fan’s unit sat a long time before it got repaired (too much on) 00:28
• Cells starved to death and leaked 00:58

Li-ion safety

• Leaked cells must not be reused 00:58

Quotes