Spa Pump Not Working

[Chrisan]

I have a 240v spa pump that won't run. No buzz, no hum, not a peep out of it. I removed the pump and disconnected the wires from it, leaving the cable plugged into the spa pack. When turned on I get the following voltages: (measured at the loose wires I disconnected from the pump)
black to ground - 120v
white to ground - 120v
White to black - 240v

Anyway I ended up replacing the pump but the new one won't run either. Took the same measurements and got the same readings.
I'm beyond mystified by this one. If anyone has an idea I would appreciate it.
Thx

 

[UNG]

Have you checked the supply voltage
Does the control board have any fuses that may have blown

 

[Megawatt]

I have a 240v spa pump that won't run. No buzz, no hum, not a peep out of it. I removed the pump and disconnected the wires from it, leaving the cable plugged into the spa pack. When turned on I get the following voltages: (measured at the loose wires I disconnected from the pump)
black to ground - 120v
white to ground - 120v
White to black - 240v

Anyway I ended up replacing the pump but the new one won't run either. Took the same measurements and got the same readings.
I'm beyond mystified by this one. If anyone has an idea I would appreciate it.
Thx

Could you please send a picture of the name plate on the motor and are you using just a breaker or a contactor with overloads protection?

 

[Chrisan]

Thank you. Attaching the pump label pic and spa pack schematic. Note with the spa pack turned on and the pump connected I get 0v L1 to L2 measured at the pump. Whole unit is fed by a 50a GFI breaker.
Thx Chris

 

[Chrisan]

Problem is solved. The white wire came off of the pump relay. When re-attached, the pump worked. How I had any kind of voltage on L1 with the relay disconnected is beyond me. Anyway it seems to be fixed.
Thx

 

[Megawatt]

Problem is solved. The white wire came off of the pump relay. When re-attached, the pump worked. How I had any kind of voltage on L1 with the relay disconnected is beyond me. Anyway it seems to be fixed.
Thx

Well congratulations and happy to hear that you got it running