Heaters

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	Why doesn’t my heater reach my desired temperature?
	Why would my heater be leaking?
	Why does my heater leak, only when it is running?
	Why is the top of the heater all black?
	Why is there black smoke coming out of my heater?
	Why is my heater whistling?
	How do I light my pilot light?
	Why won’t the pilot light?
	Why do I have to frequently re-light the pilot?
	What power supply do I need?

Why doesn’t my heater reach my desired temperature?

• The thermostat may be set too low.
• Inadequate gas supply.
• Malfunctioning thermostat.
• You are losing heat faster then you are adding it. (If the heat loss in the pool is greater than the heat input, the heater might be too small or you may need a thermal barrier). Use a thermal barrier to help prevent heat loss
  

Why would my heater be leaking?

• The heat exchanger may be leaking because,
    (1) Chemical imbalance.
    (2) Sanitizer damage.
    (3) Winter freeze damage.
    (4) Failed joints.
• Regardless of the reason, a Hayward service company must be contacted to inspect the failed exchanger. Contact an Authorized Hayward Dealer/technician for examination.
  

Why does my heater leak, only when it is running?

• This may not be a leak, rather condensation. Condensation can occur from:
  (1) Heating very cold water. 
  (2) A missing or damaged bypass.
  (3) Excessive water flow through the heater from an oversized pump.
• Condensation was very common on older less efficient heaters (non-Hayward included).

Why is the top of the heater all black?

• A lean gas to air mixture caused by low gas pressure, a blockage and/or inadequate air supply may be the culprits. Review the installation instruction in the owner’s manual. Both conditions may need to be evaluated by an Authorized Hayward service technician.
  

Why is there black smoke coming out of my heater?

• Same as #5. A lean gas to air mixture caused by low gas pressure, a blockage and/or inadequate air supply may be the culprits. Review the installation instruction in the owner’s manual. Both conditions may need to be evaluated by an Authorized Hayward service technician.
  

Why is my heater whistling?

• Low gas pressure can cause whistling in the burner tubes. The gas pressure needs to be verified by a gas professional. Contact a Hayward qualified service technician.
  

How do I light my pilot light?

• Verify that the local gas valve, located outside the heater and all valves supplying gas to the heater are open. Remove the front lower cabinet door to expose the internal gas valve. The black knob on the gas valve will have three positions; “OFF”, “PILOT”, & “ON”. Rotate the knob to the “PILOT” position and press and hold the knob down. This manually opens the pilot diaphragm and sends gas to the pilot assembly. While holding the knob down, press in the “click-lite” 3-4 times. This should ignite the pilot.  Hold the knob down for a minute, so the pilot generator heats up, then release. Turn the gas valve knob to the “ON” position. If the heater has been off for a long time, (more than one week), wait 3-5 minutes prior to firing the heater to give the pilot generator enough time to heat up.
  

Why won’t the pilot light?

• If you are having trouble lighting the pilot, there are several things to consider. There maybe spider webs in the pilot head, preventing the gas from getting to the sparker. This is very common after a period of non-use.
• The pilot generator may be bad and not able to get hot enough to supply sufficient voltage to operate the heater.
• The “click-lite” may not be sparking. Contact a Hayward Authorized dealer for repair.  
  

Why do I have to frequently re-light the pilot?

• Pilot outages are most commonly caused by environmental factors: High wind gusts, excessive rain or a sprinkler head forcing water into the cabinet.
• It could be due to less obvious issues. Low gas supply, failing pilot generator, a bad gas valve, slight blockage in the pilot assembly. If you are unable to light the pilot, visit your local Hayward dealer for guidance.  
  

What power supply do I need?

• Hayward’s millivolt heaters do not require an external power source. The small amount of electric current that powers the heater is generated from the pilot assembly.