Hayward Pool Heater Error Code 07: How to Fix It

Q: What does Hayward error code 07 mean?

Error code 07 on a Hayward pool heater means the heater requires service. It is triggered by a faulty thermistor, high limit switch, or airflow restriction.

Q: Can I reset error code 07 on my Hayward heater?

Sometimes resetting the heater by turning off power for 30 seconds can clear the error, but if the underlying issue is not fixed, the code will return.

Q: How much does it cost to fix Hayward error 07?

If it's a simple thermistor replacement, parts cost $20-$40. A professional service call may cost $100-$300 depending on the problem and labor rates.

Q: Where is the thermistor on a Hayward pool heater?

The thermistor is usually located near the heat exchanger outlet. Refer to your owner's manual for the exact location.

Q: Why does my Hayward heater show error 07 after cleaning?

Cleaning may disturb a wire connection or the thermistor. Recheck all connections and ensure the thermistor is securely attached.

Abstract

Error code 07 on a Hayward pool heater indicates that the heater requires service, often due to a faulty thermistor, high limit switch, or airflow issue. This guide will help you diagnose and resolve the problem safely.