portable AC capacitor, good or bad?
i got a soleus portable heat & air unit and there's a problem with the heat. i've tried many troubleshooting procedures and am now down to capacitor issues. so here it goes. the cooling part works just fine, but when i turn on the heater, i only get slight warm air from the unit even though the fan runs full. i opened up the unit and the metal grill that is supposed to generate heat is connected to a large capacitor, the same one that the AC unit is connected to. Because the cooling runs fine, does that mean the capacitor is good or are there still doubts that the capacitor could be bad that's why the heater won't generate enough heat? by the way, here is the info on the capacitor, CBB65 60uf+-5%, 270vac 50/60hz sh c.p1 40/70/21. any suggestion is highly appreciated.
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Re: portable AC capacitor, good or bad?
some pics would help.
and a location.sounds like a foreign brand.but may have a u.s version someone here is familiar with. -
Re: portable AC capacitor, good or bad?
A heating grid is purely resistive, and shouldn't need any capacitor attached, unless it has some kind of PWM circuit to control current flow into the grid. If you can get some pics of the grill and wiring setup, that would help a lot.Comment
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Are there good brands for 'run capacitors' or 'start capacitors' that are used on electric motors or heat pump compressors? ... r are the good capacitor brands for electronics (power supplies, laptops, motherboards, etc.) also the good brands for run capacitors?
Yeah I know this might be a novice question, but I just wanted to be sure. I did do a search on the forum but did not see this question asked before.
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Back in 2020 i bought a (2nd hand) compact ATX psu to replace my current one. My PC case only fits very short ATX power supplies so i didn't really have the choice of buying a decent 80Plus unit. The current unit is a modded YoungYear unit that i made a thread about a while ago:
A "nice" YoungYear unit? - Badcaps
The "new" unit is a KDM-M6480 480W psu, the 480W number is a typical KDM bullshit claim of course, but the 24A rating on the 12V rail seemed reasonable and the "Active PFC" claim gave me a bit of hope that this was going to be decent-ish.... -
Hi people, I hope this is the correct spot to post this, I'm new to the forum.
I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.
I hope these photos make it clear which component I am referring to:
(yes, the soldering is a bit botched from removing the blown one, I know)
I have found the board schematic (attached), but there does not seem to be a boardview available. I have never... -
Mounting and Handling Guidelines for TO220 TO220F TO247 Cases / Packages
The TO220, TO220F and TO247 are the popular packages for power devices because of their versatility and ability to dissipate moderate amounts of heat. This application note describes the basic guidelines for handling power MOSFETs in TO220, TO220 and TO247 packages shown in Figure 1. Please note that only mechanical and soldering guidelines are covered here. Additional precautions are required for isolating high voltage rated devices to meet safety regulations.
Securing a good thermal interface between...10-07-2024, 04:35 AM -
Hi all,
this unit comes from a samsumg LCD TV LE32C530F1W which stopped working after making a strong noise like something was exploded inside of it.
I opened it and found that fuse FP801S was blown, capacitor CP814 was completely disintegrated and MOSFET QP801S was shorted.
I replaced all of them and instead of the fuse I connected a 100 Watt bulb. Then, without connecting it to other TV boards, I switched it on, but the bulb begun to blink.
I thought that maybe the bulb was somehow interfering with the normal operation of the power supply, so I replaced it with a fuse,...
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