What to Check After a Power Outage Affects Your Pool
After a power outage, check your pool’s normal controls, clock, schedule, and any displayed alerts before assuming the equipment has failed. A pump running at the wrong hour can be a timing problem. Equipment that stays off or shows a fault needs a different response.
For Chino and Inland Empire homeowners, these observations can help explain what changed without opening equipment or attempting electrical repairs.
First decide whether it is safe to approach
Stay away from damaged wiring, smoke, sparking, or standing water around electrical equipment. Keep everyone out of the pool if an electrical fault is suspected. For an immediate danger or suspected shock, call 911; do not enter the water to investigate or rescue someone.
If floodwater reached electrical equipment, leave it off for evaluation by a qualified electrician. The Electrical Safety Foundation warns that drying alone does not make water-damaged equipment safe to reenergize. Do not open electrical covers, test voltage, or repeatedly reset a breaker or ground-fault circuit interrupter (GFCI).
Compare the clock with the actual time
If the area is safe, read the normal user-facing display or app. Check the time, AM/PM setting, scheduled start times, and run durations against your usual settings. Take screenshots before changing anything.
Power-loss behavior depends on the model. Intermatic explains that its T100 mechanical timers stop keeping time during an outage. By comparison, Pentair’s SuperFlo VST/VS and SuperMax VS guide describes clock retention for up to 24 hours and a blinking clock after that setting is lost. Those examples are not instructions for every timer or pump.
Use your exact model’s owner instructions for an ordinary clock correction, or ask your pool professional to handle it. If accessing the clock requires an unfamiliar enclosure, stop there. Avoid a factory reset or rebuilding the schedule from memory.
Check which controller normally runs the pool
Record whether your system normally follows automation, a pump’s built-in schedule, or a separate timer. Note the mode shown on the usual controls, including any manual, service, or external-control indication. An unfamiliar mode is useful information to report, rather than a reason to change installer settings.
When did power go out, and approximately when did it return?
Did equipment restart on its own, stay off, or start at an unexpected time?
Does the display show the correct time and your usual schedule?
What exact warning or fault code is visible, and on which device?
Keep unresolved faults available for diagnosis
Photograph alerts before clearing anything. Leave equipment with a persistent fault off pending professional guidance; do not keep cycling power to force another start. Pentair’s pump guide warns that an uncommanded GFCI trip can indicate a shock hazard and requires correction before using the pump.
Once a routine timing issue is resolved, check that the next scheduled start and stop occur as intended. If the system still behaves differently, send your observations using our pool equipment repair checklist. Contact Superior Pool Pro with your city, equipment model, outage timing, and the current display message to discuss the next step.
