I have a two speed Hayward Flo-Max XL pump hooked up to a solar panel. Yesterday I turned off the pump while on high speed and while the water was backflowing into the pump from the solar panel, I turned on the pump again. At this point, the pump would only make the humming/nngghh noise with no waterflow, but when I switched it to low speed it worked fine.
I tested both capacitors with a digital multimeter set to 2000 ohms and with the power to the pump off.
Run capacitor (Genteq 97F9613, 35UF):
For just a second the readings are high (a few hundred) and drops to 007 where it stays. When I unplug the two electrical wires from the capacitor, there is no readings on the multimeter.
I only tested this one with the electrical wires on (but power still off). This one also spiked at a few hundred and dropped within a second to 040 where it stayed.
I am not sure how to fix the problem as I'm puzzled low speed works fine while high speed doesn't. Would a broken capacitor cause this behavior or wouldn't low or high speed work at all if a capacitor was bad? Or could I have broken/jammed something inside the pump?
I'd appreciate any insight.