Question about Hayward 250kbtu Ng Pool Heater - Inground

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H350 FDN heater wont come off of standby mode. No error code. heater is <4 yrs old and recently replaced the keypad and display board and it worked fine for a couple of months.

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Posted on Jan 02, 2017

  • 78 Answers

SOURCE: the temperature buttons on my hayward 400IDL

You most likely need a new touch pad and they are almost impossible to troubleshoot. If everything else works except "button A" then button A is bad and in this case that means the whole thing is bad. Sorry...

Posted on Apr 23, 2010

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SOURCE: "LO" error code on new H400FDN heater

it is low water pressure sensed, unit will not start unless pump is working

Posted on Jun 07, 2009

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SOURCE: have pilot light lit but unit willnot come on hayward h350 heater

check millivolt output,if it is in normal range(400-600)check for continuity on pressure switch,flame rollout and high limits.

Posted on Jun 22, 2009

  • 78 Answers

SOURCE: Pool Heater with communication (CE) Error

Code "CE" stands for communication error and describes a fault between the mother board and the display. I doubt it's the relay causing it though...

Posted on Apr 23, 2010

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SOURCE: I'm receiving an error code CE on my Hayward H

Open up the control panel access door on the front. (the display). Remove the 2 screws at the top and tilt the assembly out. There should be a tab on the bottom that helps keep the assembly stable. Check all the connections on both boards for fit and broken wires. If all is ok, I would shut the supply power off, then back on and see if the data transfer works. If not, bad boards.

Posted on Jul 25, 2010

Testimonial: "Great advice. Working like a charm. No loose wiring. 2 large beetles between the circuit board and the display. Blew them out and it works great."

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Hayward heat display is stuck in standby

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Kitchenaid Ykers807ss00 error display f2e0

this is the procedure for this code,





STUCK KEY (shorted key)


PROCEDURE: Before proceeding, perform steps 1 through 3 above chart to enter the

Diagnostics mode.

A. Unplug range or disconnect power.

B. Check that the keypad is firmly connected.

C. Plug in range or reconnect power.

D. Observe for longer than 1 minute.

E. If error remains then go to step F.

F. Unplug range or disconnect power.

G. Replace keypad.

H. Plug in range or reconnect power.

I. Observe for longer than 1 minute.

J. If error remains then go to step K.

K. Unplug range or disconnect power.

L. Replace display board.

M. Plug in range or reconnect power.

Here is the board to order.

All parts come with a 365 day, any part, any reason return policy.

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Hayward h series heater was working fine earlier this summer but just recently when we try to turn it on it won't allow us to change the mode from Standby to anything else. The display does not show...

Your unit likely needs the control bezel assembly replaced. It includes the control pad and the circuit board it attaches to. We currenly have one in stock for $229.60 + shipping (and tax if shipped to a Michigan address). If you would like to order it please contoact us thru


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I have a pf error on my hayward 400 fdn 2 yr old heater. also it's wired 240 volt ac

Thank you for posting your question here on

A 'PF' error code for a Hayward heater is an electrical supply wiring error. This code will display if 120V polarity is reversed, low voltage is detected, or if the ground path is not sufficient. Reset is immediate after error is corrected. If you are feeding it 240 it can mean one of the 120 legs is low or open or the grounding is bad. It could even be an issue with the transformer or the control board but it is far more likely an electrical supply problem. Start with measuring the incoming line voltage with a good meter. You should see 240 line-to-line and 120 line-to-ground on each leg. If the reading is off by 10% or more there is an issue to correct. If not check the ground next.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at Positive feedback is appreciated once your problem is solved!


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How to off the FDN mode of my cellphone

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Blackberry 7100g

About fixed dialing
If you enable fixed dialing number (FDN) mode, your device only makes calls to contacts on your FDN list. Your device can dial emergency numbers in FDN mode, even if the numbers are not in the FDN list. If your service provider plan includes SMS, you can also send SMS messages to contacts on your FDN list

so if you have this enabled chances are you have to turn it off.
this is how you turn it on so you should be able to use it as a guide to turn it off.

Turn on fixed dialing
1. In the phone options, click FDN Phone List.
2. Click the trackwheel.
3. Click Enable FDN mode.
4. Type the PIN2 code provided by your service provider.
5. Click the trackwheel.

or if you wanna keep it on and add friends to the fdn

Add contacts to the FDN list
1. In the phone options, click FDN Phone List.
2. Click the trackwheel.
3. Click New.
4. Type the PIN2 code provided by your service provider.
5. Click the trackwheel.
6. Type a name and a phone number.
7. Click the trackwheel.
8. Click Save.

and finally some shortcut keys:
To open the phone, press the Send key.
To end a call, press the End key.
To call a selected contact or phone number, press the Send key. To call a speed dial number, hold the assigned key.
To add an extension to a phone number, press the X key. Type the extension number.
To call your voice mail access number, hold 1.
To type a letter in a number field, hold the Alt key.
To type the first letter on a key, press the letter key once.
To type the second letter on a key, press the letter key twice.
To turn on or turn off mute using the Mute button, press the Mute button.
To turn on or turn off mute using the keypad, press the exclamation point (!) key.
To turn speakerphone on and off during a call, press the period (.) key.
To change the volume during a call, roll the trackwheel.

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