Hayward Max-Flo XL In-Ground Pool Pump

Troubleshooting:

• Motor won't start:
• Check for improper or loose connections, open switches or relays, blown circuit breakers or fuses.
• Manually check rotation of motor shaft for free movement and lack of obstruction
• Motor cuts out – check for:
• Wiring, loose connections, etc.
• Low voltage at motor (frequently caused by undersized wiring).
• Binding and overload. (Amperage reading)
• Motor hums, but does not start – check for:
• Governor stuck in open position.
• Open capacitor.
• Motor cuts out – check for:
• Wiring, loose connections, etc.
• Low voltage at motor (frequently caused by undersized wiring).
• Binding and overload. (Amperage reading)
• Pump won't prime:
• Make sure pump/strainer housing is filled with water and that cover gasket is clean and properly seated. Tighten hand nuts.
• Make sure all suction and discharge valves are open and unobstructed, and that pool water level is above all suction openings.
• Block off suction as close to pump as possible and determine if pump will develop a vacuum.
• If pump does not develop a vacuum and pump has sufficient "priming water".
• Tighten all bolts and fittings on suction side
• Check voltage to make sure pump is up to speed.
• Open pump and check for clogging or obstruction.
• Remove and replace shaft seal.
• If pump develops a vacuum, check for blocked suction line or strainer, or air leak in suction piping.
• Low Flow – Generally, check for:
• Clogged or restricted strainer or suction line; undersized pool piping.
• Plugged or restricted discharge line of filter (high discharge gauge reading).
• Air leak in suction (bubbles issuing from return fittings).
• Pump operation underspeed (low voltage).
• Plugged or restricted impeller.
• Noisy Pump – check for:
• Air leak in suction causing rumbling in pump.
• Cavitation due to restricted or undersized suction line and unrestricted discharge lines. Correct suction condition or throttle discharge lines, if practical.
• Vibration due to improper mounting, etc.
• Foreign matter in pump housing.
• Motor bearings made unserviceable by wear, rust, or continual overheatings.