Hayward Pool Pump Error Code 05: How to Fix It
Medium 30-60 minutes Medium Severity
Verified June 2026
- Error Code
- 05
- Brand
- Hayward
- Product Type
- pool_equipment
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-60 minutes
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Tools You'll Need
- Multimeter
- Insulated screwdriver
- Wire strippers/cutters
- Safety gloves
How to Fix Error Code 05
-
Check the Voltage Supply
Always turn off power at the circuit breaker before working with electrical components. -
Inspect and Tighten Wiring Connections
Ensure power is off before opening the compartment. -
Test and Replace the Capacitor
Capacitors can store dangerous voltage even with power off. Discharge by shorting terminals with an insulated screwdriver. -
Check for Overloaded Circuit
-
Verify Pump Motor Windings
Parts You May Need
Start capacitor
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Start capacitor
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Start capacitor
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Start capacitor
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When to Call a Professional
If voltage at the pump is consistently below the required level or if you suspect a problem with your home's electrical panel, call a licensed electrician. Also, if motor windings are faulty, consider professional motor replacement service.Frequently Asked Questions
What does Hayward pool pump error code 05 mean?
Error code 05 means under voltage, indicating the pump is not receiving enough electrical power to operate properly.
How do I reset a Hayward pool pump showing error 05?
First, fix the underlying voltage issue. Then, turn off power to the pump at the breaker for 30 seconds, then turn it back on. The error should clear if the voltage is now correct.
Can low voltage damage my Hayward pool pump?
Yes, prolonged under voltage can overheat the motor and damage the pump. It's important to address the issue quickly.
What voltage should my Hayward pool pump receive?
Most Hayward pool pumps are designed for 115V or 230V. Check your pump's label for exact requirements. Measure voltage at the pump terminals while it tries to start.
Do I need a special tool to test the capacitor?
A digital multimeter with capacitance testing capability is recommended. If yours doesn't have that, you can test for a short or open circuit, but a capacitance test is more reliable.