9 Easy Ways To Troubleshoot A Hayward Pool Heater: Most Common Issues, Error Codes & Solutions

Are you facing trouble with your Hayward Pool heater? If it is that so don’t get puzzled. Troubleshooting Hayward pool heaters is not a tedious task. You can do it effortlessly with some basic knowledge. Usually, a pool heater allows you to enjoy warm water even in freezing cold weather that’s why it should be always in order.

For troubleshooting a pool heater you should know its common issues, error codes, and most importantly how to solve them. Once you are aware of these you can certainly find a quick and easy solution.

Water temperature is a crucial thing to set for swimming if the water temperature is average you can enjoy it fullest. Undeniably we are thanking technology that allows us to use simplified gadgets.

Here we will try to figure out the issues in the Heyward pool heater and their resolutions so that we can allow ourselves to enjoy the warm water in freezing cold weather.

Now, Let’s look into some of the most common ways to troubleshoot a pool heater.

Quick Steps to Troubleshoot a Hayward Pool Heater

A pool owner might encounter vivid malfunctioning and need to settle them for enjoying hot water for swimming but for that what should a pool owner do? Let’s uncover the quick steps to troubleshoot a Heyward pool heater.

How To Troubleshoot A Hayward Pool Heater: Most Common Issues, Error Codes & Solutions

Note: Before taking any steps for cracking an issue, you must be assured that a problem exactly lies in that part, then you are good to go.

Here is a list to troubleshoot a Heyward Pool Heater.

  • Identify the source of the problem
  • Check the power supply
  • Check The Temperature Settings
  • Check The Filter
  • Check the Gas Supply
  • Check the Thermostat
  • Inspect The Plumbing Valves
  • Check out the pool pump
  • Repair or replace parts

1. Identify the source of the problem

Whether you are a first-time pool owner or a professional one. Diagnosing and resolving the Hayward pool heater is crucial to acknowledge. Troubleshooting a pool heater comes under pool equipment maintenance.

If all the equipment work properly, it becomes easy to manage the pool in a long run. Identifying the exact issue that should be your prime concern.

Before troubleshooting, you must have known the fact that how all the parts are assembled and how they work. Otherwise, you might end up losing the heater.

Troubleshooting undoubtedly saves you time and energy. The fundamental parts of the heater like a gas valve, burner, heater control panel, thermostat, and ignition control need to be your concern to check.

Let’s have a look at common issues, error codes, and solutions.

2. Check the Power Supply

The first and most common issue of pool heaters is the fluctuation in the power sources. It is important to ensure that your pool heater is properly connected to the power source and make sure there would no problems with the electrical connection.

During the inspection, keep an eye out for damaged wiring and check the breaker to ensure the pump is getting enough power. In some cases, the problem can be easily resolved by simply making sure the pool heater is plugged in properly.

3. Check The Temperature Settings

Temperature setting is a crucial thing to check on. In case you find the heater is unable to warm the pool water. You should change the setting to a high temperature.

High temperature is required to heat up a huge amount of water that your pool has. Temperature settings have some level but in cold weather, it should be set on high.

4. Check The Filter

For proper functioning of the pool heater in severe weather make sure you check its filter. While checking the pool heater, you should make sure that you empty the pump basket and skimmer on a weekly basis.

This will prevent the filter from damage. For making the water clean you should practice 8 hours running pumps in the pool.

5. Check the Gas Supply

If you’re facing trouble igniting the heater, first you should check the pilot light. If the pilot light is out, just replace it.

If the pilot light is lit but the heater is not igniting, there must be an issue with the gas line. For the gas supply issue, you should call a technician.

6. Check the Thermostat

If the heater is having trouble heating the pool water, there are a few things can check. If the thermostat is not set for the correct temperature it won’t work accordingly.

When you set the thermostat too high, the heater will not run too long and will consume too much gas. If the heating element is defective you should replace it.

7. Inspect The Plumbing Valves

Check the plumbing valve is necessary while troubleshooting the pool heater. It should be set in an accurate direction.

If the direction is wrong it will not get the proper flow of water supply. Plumbing valves are always considered to work smoothly then only you can get proper running water.

8. Check out the Pool Pump

A pool pump is important to supply or pumping of water through the heater with the proper amount of pressure. In handling a pool pump you need a required amount of pressure.

There are different variables available in pool pumps for example single speed, two-speed, and variable-speed pumps. The third type of pump is highly recommended because you can set the flow according to your need.

9. Repair or Replace Parts

After practicing all these simple steps if you run out of solutions. Certainly, It might cause internal damage or some severe issue with its motor or other internal equipment.

At the last, there is no solution rather than to change it or you can handover to a qualified technician. It’s better not to do anything further by yourself, take help from a professional person can resolve the problem.

Also Read: 9 Easy Ways to Clean Dirty Pool After a Storm Or Flood

Most Common Issues, Error Codes & Solutions

This is requisite to find out the issues and then solve them in order to make your pool heater error-free. Here is the list of some most common issues along with their solutions.

Issue 1: One of the common issues is Hayward pool heater shows error codes.

Solution: It is important to take note of it and consult the manual and you can contact the Hayward technician to troubleshoot the issue.

Issue 2: There is a problem with the heating element.

Solution: This may be caused by a number of things including a tripped circuit breaker or a blown fuse. You need to check cautiously if it is damaged then replace it.

Issue 3: The heater is not reaching the desired temperature.

Solution: Firstly, make sure the thermostat is correctly set. Secondly, there could be issues with the gas line or the pilot light. If you surely suspect an issue with the gas line, contact a qualified service technician to inspect it.

Issue 4: Hayward pool heater is making strange noises.

Solution: It’s likely due to a build-up of sediments in the tank. This is a common issue and can be easily fixed by draining the tank and then cleaning it with mild detergent.

Issue 5: You’re having trouble igniting your Hayward pool heater.

Solution: The first thing you should check is the pilot light. If the pilot light is out, you’ll need to relight it. If the pilot light is lit but the heater still won’t ignite, there could be an issue with the gas line. If you suspect an issue with the gas line, you’ll need to contact a qualified service technician to inspect it.

Issue 6: The pool heater is not staying on.

Solution: It may happen due to a faulty thermostat or switch. If the switch is not functioning change it. If the thermostat is not working properly you can change it too as well.

Also Read: How To Keep Above Ground Pools Clean: 10 Tips For Healthy Swimming

Error Codes for Hayward Pool Heater:

Hayward Pool Heater shows some issues if it has a problem working. Here is a list of some common error codes. It can help in better understanding errors and what measures you can take.

E1: The E1 error code shows that the thermostat is not functioning well. Here you need the change or recover the thermostat.

E2: This error indicates that the switch is not working properly. For fixing this issue you can change the switch.

E3: When the gas line is blocked it shows an E3 error. You can clean out the gas line or change it too.

E4: When the pool heater gets overheated it shows an E4 error. For keeping it cool you should turn it off. Before restarting it wait for some time.

Final Words

We are hoping that all the above-explained matrix will help you identify the issue along with resolve Hayward pool heater problems. In case non of the tip is not working, definitely, your heater is not an appropriate fit for your pool size.

Do check again the capacity of the heater as compared to the available amount of water in your pool. Once you have detected the fundamental problem it automatically gets easy to find a solution for that. If you have any queries regarding the above topic feel free to jot down a message below.


How do I reset my Hayward pool heater?

You can unplug all the connected devices and turn the circuit breaker on and off, this may help to reset your Hayward pool heater.

What does the code mean on a Hayward pool heater?

You can see there will be a diagnostic fault code of “IF” displayed on the Hayward heater LED display. This stands for Ignition Failure and you need to look into the ignition system along with the flame sensor.

Why does my Hayward heater keep going off?

Heyward pool heater cycles on and off frequently, the reason must be there is most likely an inadequate supply of water to the filter or a closed valve.

What would cause the pool heater to not ignite?

Dirty pool heaters cause malfunctioning. Dirty filters or pump baskets can limit water flow to the point where a heater can’t operate. Due to less supply of water heater not respond properly.

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