Hayward Pool Heater Error Codes

There are several reasons why Hayward pool heaters give error codes. If yours does not show an error code, it is most likely a hardware issue. To repair your heater, you must know the exact code. The Hayward website has a diagnostic manual you can refer to. Your heater regulates flame ignition and water temperature. When an error occurs, it locks down and resets automatically after a few minutes. If you are unable to determine the problem, contact a professional.

A few things that you can try first are to check the gas valve and voltage during ignition. Also, check the wiring of the heater for kinks or corrosion. Also, check the flow of gas, water, and electricity through the combustioneer. If any of these are blocked, you need to replace the damaged part. Finally, check the gas valve and make sure it is not defective. If none of these steps help, you can replace the gas valve.

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A Hayward pool heater’s temperature limit switch is one of the most common causes of an LO error code. The LO error will lock the heater out and shut off if it senses negative pressure. If the switch is stuck open, the exhaust fumes will be pumped back into your home, poisoning your air. The other possible causes of this error code are dirty filters, defective switches, or a faulty vent pressure switch.

LO is another error code. It means that the temperature limit switch is not working properly. If you are not sure whether your pool heater’s vent is too small, check the manual to determine sizing and proper venting. If both are fine, then you should be able to fix the error. If the error code is indicating a fault in the temperature limit switch, it is probably a hardware problem.

In some cases, the problem is simply the temperature sensor itself. In many cases, this can be solved by replacing the sensor. If this is not possible, it is possible that a wiring or module has been damaged. Another common problem may be the ignitor. In such a case, it is best to contact a professional pool service technician. They can help you diagnose the problem and fix your Hayward pool heater.

If you’re unsure as to why your Hayward pool heater is giving error codes, contact the manufacturer. Hayward is an excellent brand of pool heaters. Typically, they last anywhere from five to fifteen years. But, the lifespan of a Hayward pool heater will vary depending on the type of usage and water pressure. Many manufacturers offer warranties for the parts. Make sure you cycle your heater at least once a year to ensure that it stays operating optimally.

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The Hayward H-series Universal heater meets strict pollution control regulations. The Hayward H-series heater meets the 2001 standards set by the Texas Natural Resources Conservation Commission and the California South Coast Quality Air Management Commission. And, unlike most pool heaters, Hayward H-series Universal heaters are energy efficient, as they are equipped with 2-inch CPVC union connections. This helps reduce the risk of high wind stacks.

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