I'm replacing the capacitor and compressor fan motor on my AC. The old capacitor is a 20/4 440. Is it safe to replace it with a 20/5 440? Pic related is the old capacitor.
>>2827870It's fine, its not exactly rocket surgery
Probably fine, capacitor will just carry more juice for the kick than needed.
>>2827877>>2827902okay great, thanks
>>2827870use the exact same capacitor.
>>2827902Will cause extra wear on the motor, making it fail sooner, need exact same specs
>>2827870just remember to cut the power, wear electrical gloves, and discharge the old capacitor safely. u can find that info on youtube.Don't get shocked by a capacitor its dangerous.
>>2827870> replacing the fan motorWhat is the specified capacitor for the new fan motor.Most use 5 but many use 7.5A few use 3 (Rheem/Rudd)
>>2827870The general rule of thumb is you can go plus or minus 10% of the rating. So, for a 4mfd cap you could go 4.4 safely. Is the extra 6/10ths of a microfarad going to damage your motor? Probably not. How do you know the old cap is bad?>>2827998>>2828016Get fucked retards.
>>2828362Pic rel is the box for the new motor, I already replaced it. it says CAP 5 so I think I'm okay?>>2828368the old capacitor was bulging out at top
>>2828362>>2828435forgot pic
>>2828368>The general rule of thumb is you can go plus or minus 10% of the rating.Op is going solely off the old cap, what if that one was already %10 higher?
>>2828487Seem pretty unlikely, like 99% of hvac systems use like, one of two cap sizes.
OP here - thanks your all your help, I installed the new capacitor and the unit seems to be working just fine (knock on wood)
