That depends on what the suply is if your power suply is 230 then you run it on 230.
If it's bad, the pump motor will not start. It can be checked with a volt meter. You should have either 115 volts or 230 volts in and the same going to the motor.
The only way to do that is with a transformer. They make inline transformers that convert 230 to 115 and they simply plug in inline.
Some power supplies have a voltage selector switch at the back that can be set for either 230 volts or 115 volts depending on the region's power requirements. However, not all power supplies have this feature, and it is important to check the specifications of your specific power supply model to confirm if it has a voltage selector switch.
It depends which country you are in. Some countries use 115 Volts AC for household supplies, some use 220, 230 or 240 Volts AC. See the link below for a list of which countries use which voltage.
Each voltage has a range and devices rated in that range will all work . The 110 to 120 volts is one range of voltages. The 220 to 240 is another range of voltages. The reason there is a range of voltages is to help the utility company out. They are mandated to keep the voltages within a + or - 5% range of a set voltage. Because there are loads coming on line and loads dropping off line the voltage fluctuates. Using a base voltage of 115 and 230 volts means that the voltage can rise by 115 +5% = 121 volts and drop by 115 - 5% = 109 volts. In the 230 volt range the voltage can rise by 230 + 5% = 241 and drop by 230 - 5% = 219 volts. As you see they are still in the usable voltage ranges.
Usually in a 230 volt situation, there are three wires. One wire is called neutral or ground. When you hook a motor or lamp between one wire and neutral, you get 115 volts. They are designated usually as L1, L2 and neutral. Things hooked between L1 and L2 are at 230 volts. Anything between L1 and neutral or L2 and neutral are at 120 volts.
The greatest common factor for {115, 230, 345} is 115. Note that 115 x 2 = 230, and 115 x 3 = 345.
230% of 50 = 230% * 50 = 2.3 * 50 = 115
115 plus 115 = 230
115
You should have about 230 volts between any pair of 3-phase service legs: L1-L2, L2-L3, L3-L1. If the voltage measured between any one pair results in low or no voltage, then you have a fuse or circuit problem.
The maximum single phase HP motor listed in the CEC is 10 HP. At 115 volts 100 amps and 230 volts 50 amps.