If a condenser water pump shows noise, fluctuating gauge readings, and the motor runs hot, the recommended action is:

• A. Turn on Pump #2, Shut off Pump #1, and Troubleshoot Pump #1
• B. Replace the Pump Completely
• C. Increase the Motor Voltage
• D. Ignore It

Answer: (A)

When a condenser water pump shows distress signals like noise, fluctuating gauge readings, and a hot-running motor, the priority is to keep the system cooling with the available standby pump while isolating and inspecting the faulty unit. In a dual-pump setup, you don’t press on with the problematic pump because the symptoms point to a developing issue—mechanical wear, cavitation, air entrainment, a clogged impeller, or bearing problems—that can worsen if operated. By turning on the second pump to maintain flow, shutting off the first pump to stop the worsening condition, and then troubleshooting the first pump, you preserve system performance and prevent further damage.

Replacing the pump completely isn’t the immediate move when a backup is available and you can diagnose the issue first. Increasing the motor voltage would risk overloading and further damage, and ignoring the problem could lead to a pump failure and potential condenser inefficiency.