Question about Pool & Spa

1 Answer

Forgot where to connect wires to on pressure

Forgot where to connect wires to on pool heater pressure switch

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,378 Answers

There is no polarity, one wire on each terminal; which one where does not matter.

Posted on Jul 17, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Raybak pool heater says flo and will not run

dirty filter or pressure switch or loose wires to pressure switch or plugged inlet to pressure switch

Oct 05, 2013 | Jandy LXI 300 PROPANE POOL HEATER -

1 Answer

I have a Raypak Millivolt propane pool/spa heater that I would like to connect to my Jandy Aqualink. The Raypak millivolt heater only has a thermostat, pressure switch, flame roll-out switch, and high...

All you have to do is put your Aqualink in series with the heater's safety loop. Sometimes there is a terminal block, but regardless if you can find the pressure switch, cut one of the wires and connect the wires from the Aqualink to each side. (There are two ports on the top of the Aqualink power center board designated for this)

At that point the AL is in control of the heater. Make sure that the heater is powered up, turned on, and your thermostat is set to max.The AL will turn the heater on and off following your programmed temperature setting.

Feb 06, 2013 | Raypak Pool & Spa

1 Answer

Need to replace Hayward H400fnd pressure switch

it is connected to the copper line going into the heat exchange two wires going to the board if voltage both sides ok check hi limits

May 08, 2012 | Hayward H-series Electronic Gas Pool...

1 Answer

When installing the indoor blower pressure switch, which blue wire is used? getting the AO code using eithor one ! any suggestions.

Any type of blower pressure switch will utilize 2 wires. One coming in and one going out. You should be using both wires on this switch. It doesnt matter what terminal on the switch each wire connects to. There just has to be one going in, and one going out. Otherwise it senses no pressure.

May 17, 2011 | Hayward 250fdn Low Nox Nat Gas Swimming...

1 Answer

My Jandy Laars LX 400,000 BTU heater flashes "low pressure". I removed the water pressure switch in the heater and turned on the pump and water flows nicely out of the copper tube for the water pressure...

Once you try to ignite three times in succession, and the heater doesn't sense the presence of flame, the heater goes into "lockout" mode and must be reset to fire. This can be done by pressing and releasing the mode button so that the heater is turned off then returned to the desired mode. So if you were going to "jumper" the pressure switch, (connecting two wires together) make sure you do the reset also. Make sure you don't operate like this, if your pump quit, you could have a melt down. Also If you have anything connected to the fireman switch, it is in series with the pressure switch,and woud display the same thing. There is a terminal with two white wires, if there is a jumper there, then nothing conected, but if there is something connected, make sure it is closed. Also be sure your code was for Water pressure and not air pressure switch. You can download manuals at:

Jul 26, 2010 | Jandy Laars LX Pool Heater / 400,000 BTU /...

1 Answer

Low pressure read out - pump pressure is fine

I think you said that you are getting a pressure switch error. The first thing to check is that the filter is within the right pressure. If too high or low you will get a pressure switch error. That error could mean a few different things so I will give you a few other solutions. If you have an automation unit make sure that the heater is turned on at the automation unit and that the water temperature is displayed correctly. If that checks out take the front off the heater and slide the front panel down. You should see a small fuse assembly on a red wire in the upper right corner. Open it and make sure the fuse is good. follow the red wire to the pressure switch. You can remove the connection and use a small piece of wire to jump the connection and see if the heater fires. If it does replace your pressure switch. I believe the next spot is a terminal bar to the far left. There should be either a small jumper wire in the top two connections or wiring for your automation unit. If its not a jumper you can remove the two wires and place a jumper and see if the heater fires. If so the problem is with the automation. Good Luck
Santa Clarita Pool Heater Repair

May 22, 2010 | Jandy LAARS LX250 - PROPANE, DIGITAL...

1 Answer

LO error message on heater. Everything shuts off after a few minutes of running.

On of your limits is not working or not wired up. An easy way to check the limits - Water pressure switch, Hi limits, air pressure switch all of which have 2 wires going to them. Unplug one item and connect the 2 wires together ( paper clip works fine ) Then retest, if problem does not go away remove paper clip and reconnect wires and move to the next limit. Always make sure water is flowing through the heater at all times while checking the limits.

Feb 17, 2010 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

Pool heater will not turn on.

It means that there is no pressure in the pipes to indicate flow. Make sure that water is flowing, and if there is a bypass on the heater make sure valves are in the correct position to allow water to flow through the heater. If you are CERTAIN that water is flowing through the heater, and the LCD still says no flow, you probably have a faulty pressure switch inside the heater, which is the most common problem with pool heaters. To confirm you will need to remove the wires from the pressure switch and short them together with another piece of wire. If it still says no flow you may have a bad board, but 99.9999% of the time it is the pressure switch.

Apr 10, 2009 | Jandy LXI 300 PROPANE POOL HEATER -

2 Answers

Hayward Heatmaster will not light

Find the pressure switch that senses H2O is going to the heater. There is a hose for the H2O on each side. Use a wire to "jump" the two electrical connections, which will simulate them closing from proper H2O pressure. If the heater actually lights, you need a new pressure switch(assuming H2O is actually going through the switch). You can buy one "on line" cheaper than the pool stores.

Mar 17, 2009 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

Pool heater cycles off and on

check pressure switch if ok check for loose wires if ok check copper tube to pressure switch

Mar 16, 2009 | Raypak Pool Heater Covers for Teledyne &...

Not finding what you are looking for?
Pool & Spa Logo

Related Topics:

140 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pool & Spa Experts

Jay Finke
Jay Finke

Level 3 Expert

1368 Answers

Bill Jordan

Level 2 Expert

372 Answers

David Spradling
David Spradling

Level 3 Expert

6889 Answers

Are you a Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides