that was literally the last 2 times. This time it was the secondary coil on the contactor, had a short. Well i guess it’s technically always short since it’s a continuous wire but it was even shorter. Was getting about 2 ohms across the coil and i guess 10-20 ohms is expected and the low resistance was popping the secondary fuse.
and a few weeks ago the compressor fan sounded like a t-rex stepped on a lego so i flipped her over, unfortunately she wasn’t old enough for plugs so i just slowly let oil drip down my shaft and cranked it until i was satisfied. Now she doesn’t scream at me when i try to turn her on. I use arch btw.
Recently fixed my home AC, pretty sure the contactor was screwed and the capacitor was done for. Just poor maintenance by the previous owner. Bought the parts, rewired the thermostat because it was a nightmare of cables in the furnace, and in the process blew a fuse and messed up the transformer in the furnace. I didn’t have a replacement fuse so I jury rigged a bypass for now, got a new transformer that I tested and validated the output on, along with everything else in the chain, new contactor, new capacitor, and a completely rewired thermostat. Took a few days to fix.
In the process, I picked up an extra contactor, and capacitor, for the next time these parts inevitably fail. I need to go back and re-test all the parts, I suspect some may be ok, given that the wiring was such a mess, but I have no idea. I know the cap was definitely bad (bulged and leaking), but the rest might not be broken, they may have been malfunctioning by proxy of the bad fuse and wiring in the furnace.
Apart from fuses, I have everything and spares, so if I can validate that the transformer works, or the contactor is fine, then I’ll have extra spares. No worries.
don’t forget to get that fuse, any car parts store will have them.
Good thinking having spare parts on hand, mine always seems to fail on a saturday afternoon and everyone is closed. I’m just glad my town finally has an AC installer that lets you buy parts from their storefront right off the shelf. Most of the suppliers in town don’t sell parts to us peasants for some reason, i guess they don’t want money.
being an electrical engineer has its perks, but the couple youtube videos i watched didn’t require any technical knowledge, mostly just safety knowledge, like the one hand rule and how to safety squint.
is figuring out this sort of stuff an exercise of trying to reverse engineer the product, or is it much simpler than I make it out to be? whenever I want to try and fix something all the videos I see people just magically know which places shouldn’t be shorting, and magically know which capacitor is causing it
It can be simple, you don’t have to understand why something is wrong to know that it’s wrong. They magically know it’s the capacitor because it’s the usual suspect, and they usually look swollen (the capacitor not necessarily the youtuber). Common problems are common, which is why youtube is pretty great because somene has probably had the same problem and posted the fix.
I replaced the capacitor after hearing the repair guy won’t be available till the next day. I already slept in the heat and didn’t want to do that again. Best believe I was strutting around the house in front of my wife lol.
There should be multiple tankies on the ground, or at least another trying to help the first one get up. While shitting all over themselves and blowing each other would also make it more realistic.
I brought my mother once to hospital with a bad stomach. Slipped a punch line from scrubs. The female doctor countered it within the same second perfectly from the show, a assistant behind us added the next line and I finished the roundabout. My mother looked around us, understood the joke but not where it came from - she hated Scrubs deeply from her heart - and we all told it Scrubs was just the thing.
Switched over to firefox a couple of days ago. The switch was actually very easy because I self-host as much as possible including bookmarks and passwords. Hardest part was finding a new speed dial extension that I liked.
I spent more than a couple hounded dollars on servicemen to install some kind of delay between turning on the fan and the compressor, because the fuse kept triggering. It helped for couple days but the problem reappeared. Finally, I managed to fix it my self by simply tightening the wire at the fuse - due to bad connection, the connection was heating up, heating up the fuse and, since the fuse is thermal, the fuse was triggering.
The fact that the serviceman didnt check something like that first tells ya a lot about some of those guys.
We like to think they know a lot about this sort of thing because they do it all day, but theyre just as dumb and bumbling as anyone else doing any other kinda job.
Well, it could be that some of them did it on purpose, because they started to convince me that the compressor motor is old, and that’s why it triggers.
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