Hi folks
I’ve been having issue with tripping breaker on startup. Have been delinquent in fixing this. Finally had time to open up the end cap of a HST225 single stage 2.25 hp pump. The capacitor shipped in the motor when I replaced in fall was rated 110 VAC so I went ahead blindly and replaced with a new 165 VAC I had on hand from a prior motor I had replaced last fall. When I got it installed I started it up to a low hum and then a pop and smoke. After quite a bit of investigation I learned the circuit board was set up for 220v. Attached the board photos and breaker being dual 20 amp. I later learned how to test motor windings by probing on L1 and L2 terminals and reading OL meaning the windings are open and motor will likely be unable to start. At least these steps were offered by an AI tool not sure if they are accurate. No ground faults and the start windings - capacitor leads show 5 ohms. I’ll attached the circuit board and motor plate here. I’m not electrician and only mildly competent with my multimeter but can I assume the motor has failed during this power on test? Before I tested the motor winding I had overnighted 2 250VAC capacitors with a lower and a higher uF range and still plan to test as I suspect can hurt anything.
I’ve been having issue with tripping breaker on startup. Have been delinquent in fixing this. Finally had time to open up the end cap of a HST225 single stage 2.25 hp pump. The capacitor shipped in the motor when I replaced in fall was rated 110 VAC so I went ahead blindly and replaced with a new 165 VAC I had on hand from a prior motor I had replaced last fall. When I got it installed I started it up to a low hum and then a pop and smoke. After quite a bit of investigation I learned the circuit board was set up for 220v. Attached the board photos and breaker being dual 20 amp. I later learned how to test motor windings by probing on L1 and L2 terminals and reading OL meaning the windings are open and motor will likely be unable to start. At least these steps were offered by an AI tool not sure if they are accurate. No ground faults and the start windings - capacitor leads show 5 ohms. I’ll attached the circuit board and motor plate here. I’m not electrician and only mildly competent with my multimeter but can I assume the motor has failed during this power on test? Before I tested the motor winding I had overnighted 2 250VAC capacitors with a lower and a higher uF range and still plan to test as I suspect can hurt anything.
