How do you adjust the pressure switch on a Hayward?
Turn the adjustment knob on the pressure switch clockwise, until the heater turns off, then turn the knob 1/4 turn ounter-clockwise, so that the heater turns back on. Turning the adjustment knob clockwise increases the pressure needed to close the switch.
How do I reset my Hayward H series pool heater?
The heater can be manually reset using the keypad by cycling the MODE button through “STANDBY” and back to the original operating mode (“POOL” or “SPA”).
Why is my Hayward pool heater not working?
Tripped circuit breaker/ no power supply check breaker and ensure that the unit is properly installed. Call HAYWARD service department for info. High / Low Pressure Switch Outside temperature too cold. -Make sure all valves are open and bypass valve is closed.
How do I adjust the pressure on my pool heater?
Turn the screw slowly to the left, counter-clockwise, to reduce the minimum required pressure. Turn it slowly just barely beyond the point where the heater turns On. Other adjustable pressure switches have an Adjustment Wheel that you turn with thumb and finger.
How do you troubleshoot a pool heater?
Check the gas valve. To do so, remove the wire running between the gas valve and the thermostat. If the heater doesn’t shut off, you have a faulty valve that must be replaced. If the heater does shut off, the gas valve is OK, but you know you have a control problem.
Why is my pool heater not coming on?
The most common cause of swimming pool heaters refusing to start up is a dirty swimming pool filter. A dirty filter or pump basket can restrict the water flow so much that the heater simply can’t work.
Why is my pool heater not heating?
Your pool heater may have inadequate water flow due to a dirty filter, closed valve, external bypass, reversed water connections, or pressure switch out of adjustment. It is also possible that your thermostat is out of calibration or requires to be replaced.