Pool Pump Electric Timer Circuit
How to Troubleshoot and Repair a Pool Pump Timer Control Circuit that is not working.
Checking Pool Pump Electric Timer Circuit Wiring
Electrical Question: I have a Pool pump that is not working. I took voltage readings at the breaker and both hot legs read 124 volts.Then I took readings at the timer where one leg 124 volts other leg 35 volts. I suspect water or moisture in the conduit from the breaker panel to pool timer. It is an underground conduit.
This electrical question came from: Walt, a Handyman from Phoenix, Arizona.
Thanks for your electrical wiring question Walt.
Pool Pump Electric Timer Circuit and Electrical Wiring
Application: Troubleshooting Electrical Circuit Wiring for a Pool Pump Timer.
Skill Level: Intermediate to Advanced – Best performed by a licensed electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester or Continuity Tester.
Estimated Time: Depends on experience and level of problem solving skills.
Precaution: Testing live wires is dangerous and should be done by an experienced individual only. Testing using a continuity tester should only be made after the circuit has been identified, turned OFF and Tagged.
How to Troubleshoot and Repair a Pool Pump Timer Control Circuit
- A low voltage reading on one of the circuit wires is typically due to a short circuit within the wiring which could be caused by a deteriorated connection. This condition causes a lower voltage feedback such as a 35 volt reading.
- The wiring between the timer control and the pool pump may be checked using a continuity tester. Be sure to check all of the terminal connections.
- Additional inspections should be made where the conduit emerges at the equipment location. Look for rust or corrosion which can lead to electrical equipment deterioration and eventual failure.
- Inspect and test the pool pump timer control to ensure that the contacts are functioning normally. Timer controls may experience worn out contacts that can eventually fail. If the timer control is faulty then it should be replaced with the same or equivalent equipment.
- It is very common that a underground conduit may have some level of moisture in it. This does not necessarily mean that the faulty wire may have gone bad inside the conduit
- Be aware of the required GFCI circuit protection for these devices as well.
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