Why is my Hayward pool heater not working?

Heater runs for a while then shuts off and shows ‘HI or HP’ on display. Low water flow is normally the problem. Check filter and pump. A common problem when running unit on spa only exists in the summer when spa temperature of about 100° F is reached and the unit shuts off with the ‘HI’ fault.

How long does a Hayward pool heater run?

I turn my Hayward H100d heater on, fan comes on then heater ignites and seems to be running OK. But after about 8 – 10 seconds, the ignition cuts off. The fan continues running. after 30 seconds the i … read more I have a Hayward LX-250 pool heater that I just bought used. I have a Hayward LX-250 pool heater that I just bought used.

What should I do if my pool heater keeps turning on?

Heater fires, switch then detects the problem a few seconds later and shuts it down. If it doesn’t shut it down you will cook the wiring the gas valve other controls and worse. A much more expensive proposition than calling a gas fitter to check it and clean it if needed. They usually recommend a cleaning at least once a season.

Why does my spa heater run for 15 seconds?

It had been working fine, but when we tried to heat the spa the other day the heater ignited, ran for 15 seconds then shut off. We have replaced the thermostat, a relay and the igniter, but the problem persists. Any thoughts? Thanks. Had the same problem with my variable speed pump. I had the pump running to low (~2,500 rpm).

Why does my pool heater turn on and than right off?

Hayward pool heater turns on and than right off. You might have an issue with your venting or exchanger being at least partially blocked. If the heater can’t get rid of the products of combustion, excess heat and/or flames etc will roll out the bottom by the burner tray.

What to do if your Hayward pool pump goes bad?

Check capacitor for …capacitance or resistance with an Ohm meter. If breaker still trips, replace the breaker; they go bad eventually. If your Hayward pump runs for only 5 seconds and shuts off, check the incoming voltage. Most inground Hayward pumps are shipped to accept 230V, and if you only give it 115V, it can’t get up to speed.

reason for this problem is insufficient gas supply. The Hayward heater LED display will show a diagnostic fault code of “IF” which stands for Ignition Failure. Undetected gas pressure problems if not investigated properly may result in unnecessary

What is the Lo code on a Hayward pool heater?

LO Code Details – When a Hayward H-Series pool heater is not firing and displaying LO as seen in the video, the heater is functioning properly as it should. It is not faulty in and of itself and it is doing exactly what it should be doing in this operational state.

Do you need fireman’s switch for Hayward pool?

This was to allow the water to cool down and not damage the plumbing lines. ALL Hayward heaters have Fire Tile, which dissipates the heat immediately, so a fireman’s switch is not required. NOTE: Gas fired heaters should be diagnosed and repaired by trained personnel.

Can a Hayward pool heater be converted to LP?

Hayward heaters can be converted to use NG or LP. The heater may require a new gas valve, burner orifices and/or air restrictor plate upon conversion. Hayward offers conversion kits through your local Hayward dealer.

How old is the Hayward H400 pool heater?

The pool is equipped with a Hayward H400 FDN gas heater. It is 4 years old. I was first getting a CE code. I replaced display board and it went away. Heater is firing up and after 1 minute of running it throws a HS Code and abruptly shuts off.

Is there a design flaw in the Hayward pool heater?

When I summarize all the experiences other had, and recommendations of ‘experts’ and the manufacturer it becomes clear to that there IS a design flaw in the Hayward units that allows moisture to get into the area of the control panel and circu it board (s).

What does HS code mean on Hayward pool heater?

Has anyone had and experience with the HS code for Hayward heaters. Any ideas or advice will be appreciated. Thanks in advance. HS code is telling you that the water output temp is too high. The code does not necessarily mean the sensor is bad but, is instead telling you there is a problem in the operation of the heater.

Is there an error code on my pool heater?

After a few hours and a few power cycles, the CE error was gone but the mode would not stay on pool/spa – it would always quickly go back to standby without an error code. After letting it dry out for a few more days, it was working normally today.

Can a Hayward and Summit heat pump be repaired?

Introduction The following heat pump diagnostic flow charts and accompanying wiring diagrams are to be used in diagnosing and repairing Hayward & Summit branded pool heat pump systems. They are not intended for use with any other manufacturers heat pumps.

What kind of heater do I need for my Hayward pool?

Here’s two charts for Hayward pool heater troubleshooting, the first is for millivolt heaters and the one further down is for electronic or digital heaters, those that give an error code on display. Troubleshooting chart for Hayward Universal H-Series millivolt pool heaters, with standing pilot, models H150, H200, H250, H300, H350, H400

What’s the difference between Jandy and Hayward pool heaters?

When it comes to troubleshooting Hayward pool heaters, there’s not too much difference between the problem solving process for other gas-fired heaters, made by Jandy, Pentair or Raypak. The components of a Hayward pool heater are also very similar to gas heaters made by other manufacturers.

What is the display on the Hayward pool heater?

Hayward pool heater display is blank Power is on to heater pump is running just filled propane tank and valve is on Hayward pool heater display is blank Power is on to heater pump is running just filled propane tank and valve is on – Answered by a verified Pool and Spa Expert We use cookies to give you the best possible experience on our website.

What should flow rate be on Hayward pool heat pump?

A common problem when running unit on spa only exists in the summer when spa temperature of about 100° F is reached and the unit shuts off with the ‘HI’ fault. At higher outdoor and water temperatures a higher flow rate may be required for proper operation. The unit requires a minimum of 30 GPM, but may require more under these conditions.

What are the most common problems with pool heaters?

One of the most common problems with pool heaters is it failing to ignite. Is your heater turned ON and the temperature set correctly? Ensure that the thermostat is set to a higher temperature than the current water temperature. Is your pump running with a clean filter and basket? Inspect the pump and filter and clean if necessary.