Why would you keep an extra window unit around when Wal-Mart has them?
They are leftover from a conversion to central air.
Why would you keep an extra window unit around when Wal-Mart has them?
Never seen one burn like that. . Possible electrical surge or brown out?Excellent to hear. I’ll jump in with my repair coincidentally done yesterday. The capacitor overheated and melted the red wire terminal for some reason while the heat pump was in the AC mode all summer. It was a replacement I put in earlier this year when the 11 year old original one failed and puffed up the top. I noticed the replacement capacitor was quite a bit smaller in diameter than the original one, but had the same specs.
My 2nd replacement is much closer to the original’s diameter but slightly smaller, requiring wrapping the top circumference with some electrical tape. Here are shots of the burned capacitor and the new replacement.
View attachment 177289View attachment 177290
The system is working well in both heat pump and AC modes. With a temperature gun I measured outside ambient temperature at the condenser, so no over heating is evident. Fingers crossed.Yes, I’ll have to keep an eye on the new cap. I’m wondering if somerhing else shorted and caused a surge.
Those Titan HD caps suck!!!Excellent to hear. I’ll jump in with my repair coincidentally done yesterday. The capacitor overheated and melted the red wire terminal for some reason while the heat pump was in the AC mode all summer. It was a replacement I put in earlier this year when the 11 year old original one failed and puffed up the top. I noticed the replacement capacitor was quite a bit smaller in diameter than the original one, but had the same specs.
My 2nd replacement is much closer to the original’s diameter but slightly smaller, requiring wrapping the top circumference with some electrical tape. Here are shots of the burned capacitor and the new replacement.
View attachment 177289View attachment 177290
Really.. I installed a Titan HD cap in my parents house a/c compressor, back in 2018, still running fine, five years later.. Nothing wrong with it, it was a 35/5 MFD Dual Run Cap (440/470v). And it was made in USA. What model of Titan Caps went bad for you?Those Titan HD caps suck!!!
Nope!I always wondered if adding an aluminum heatsink to the capacitor would significantly extend its life?
Look up capacitor by model number. Google part number to get correct mfd. If voltage is 370v you may replace with 440v.My last one failed in such a way I could no longer read the values on the dual capacitor. After an extensive internet search I could only come up with a best guess. Kicked myself for not buying a spare when I replaced it previously.
Without resister in between there is a possibility of sparking and arcing, I guess for an already known bad cap it is not a problem but I wonder what could go wrong.I just replace the cap in my friends house, do used screw driver to discharge it!
Loose terminal caused that, loose connection generated heat. Terminal should be replaced.I've never seen a cap flashover like that . Not a typical failure .
Yeah. Very lucky and I know that feeling of victory you got. That is the last thing I had to repair to my 4 ton H.E. Rheem condensing unitI have to gloat and you're the only crowd that will understand. I was sitting here about an hour and a half ago and noticed it getting warm in the house. Went to check on the vents and they were blowing warm! Go outside and the outdoor unit isn't running. Did some quick checks with my multimeter to make sure it was getting juice, felt the condenser fan and it was very hot. The fan spun freely when I tried spinning it with a paint stick, but since it was getting late I did a quick search for a capacitor and fan, no fan available tonight but the local Ace had the cap! Decided to throw a cap at it and $30 later we have cold air! Old cap wasn't even that old...now just need to button this bad boy up once it cools down a bit inside.
I can't tell you the feeling when I plugged the disconnect in and it fired right to life!
She would if she had to pay those after hours or wekend call out repair bills you prevent.Similar story, came home from a week at the beach a couple years ago to a hot home. Air handler running but outside unit not. Checked everything out in the morning, determined the capacitor as most likely issue. This is a Sunday morning, got a same day delivery from Amazon by 6 pm. Put it in and back in business. My wife still doesn't worship me as a DIY hero though
jeff
No. They do not run that hot to need one. If they run hot, something is wrong with it.I always wondered if adding an aluminum heatsink to the capacitor would significantly extend its life?
As part of doing preventive maintenance, I check the capacitor on my furnace and refrigerator yearly.I change out the capacitor(s) and contactor every 10 years to avoid breakdowns and keep a spare for each. My outdoor unit is 23 years old, been reliable and I am on the third set of parts now. I have seen those parts fail sooner for others..
Because you made it look too easy.Similar story, came home from a week at the beach a couple years ago to a hot home. Air handler running but outside unit not. Checked everything out in the morning, determined the capacitor as most likely issue. This is a Sunday morning, got a same day delivery from Amazon by 6 pm. Put it in and back in business. My wife still doesn't worship me as a DIY hero though
jeff
Awesome fix. I'm assuming you purchased the correct capacitor? When I worked maintenance I was starting to learn a little bit about A/C and there is a range and something else to look at farads If I remember correctly.I have to gloat and you're the only crowd that will understand. I was sitting here about an hour and a half ago and noticed it getting warm in the house. Went to check on the vents and they were blowing warm! Go outside and the outdoor unit isn't running. Did some quick checks with my multimeter to make sure it was getting juice, felt the condenser fan and it was very hot. The fan spun freely when I tried spinning it with a paint stick, but since it was getting late I did a quick search for a capacitor and fan, no fan available tonight but the local Ace had the cap! Decided to throw a cap at it and $30 later we have cold air! Old cap wasn't even that old...now just need to button this bad boy up once it cools down a bit inside.
I can't tell you the feeling when I plugged the disconnect in and it fired right to life!