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The purpose of the pressure switch is to verify the pool pump is operating properly and water pressure is present in the heating chamber. When water pressure is not present, the heater control system is designed to not allow initiation of flame. The pressure switch is preset at the factory for deck level installations. When the heater is located below the level of the spa or pool, the pressure switch may require an adjustment to compensate for the no-flow static head.
CAUTION: The Hayward Pool Heater is essentially a furnace. A trained technician should be consulted to repair it. DO NOT OPERATE the Hayward Pool Heater without a properly functioning and calibrated water pressure switch. The pressure switch adjustment requires both the pool pump and the heater be operational. As a result, extreme caution should be used during this procedure since sources of energy can not be isolated during the procedure.
The following procedure is recommended to calibrate the pressure switch.
1. The water pressure switch is located behind the front service panel. The pressure switch is typically on the left side, above the burners.
2. Be sure the water filter is clean before making the adjustment.
3. With the pump and heater system switch on, carefully turn the pressure switch adjustment dial clockwise, until a click is heard from the gas valve.
4. Turn the adjustment dial counterclockwise 1/4 turn.
5. Turn the pump off and on several times. The heater should shut off immediately when the pump is shut off. If the heater fails to shut down when the pump is off, repeat the steps above until the pressure switch is properly adjusted.
6. If the adjustment process fails to produce proper results the pressure switch should be replaced.
there are no bleed valves on hayward pumps. there are freeze plugs. one is at the front of the pump at the bottom and there is another located on the side where impeller is at bottom
I have a 3/4 hp hayward pumping thru solar panels, too. 1-1/2 discharge thru 50 ft of 2inch pipe, up 12 ft then thru (4) 4x12 panels. Mine is on 115 volts ac.
You have plenty of pump and when you run a pump with low flow, amperage is low. You are not tripping your breakers, it sounds like the pump is overheating. Is it hot to the touch when it shuts down?
Do you have an ammeter so you could check your amps?
What size wire is running the 60 ft to the pump?
1. Is there a switch on the bottom of the pump?
2. Hearing nothing indicates no electricity to the pump.
3. Is there some other location where power could be off or tripped off?
Gary
This site that sells pool pumps has owners manuals for most Hayward pumps. If they don't have in on the website, they might be able to locate it for you. You might also want to try the Hayward website.
Recheck your wire connection on the motor. You likely put both your line wires on the same terminal.
If not, try finding a local warranty center for a repair or replacement...
http://www.haywardnet.com/locator/
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