Hayward Pools H350FDP Swimming Pool Heater User Manual


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Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
13
AO
Proverswitchopendur-
ingpost-purgeerror
Iftheblowerproverswitchopensduringthepost-purgecycle(heaterisnotr-
ing)thecontrolwilldisplaytheerrorcode.Thepost-purgecyclewillbecom-
pletedoncetheblowerproverswitchcloses.
AC
Proverswitchclosed
whenexpectedopen
error
Iftheblowerproverswitchisclosedbeforeblowerstart-upthecontrolwillnot
starttheblower.Automaticresetisimmediatewhentheswitchopens.
IO
Igniteropenerror Ifthecontrolisnotinlockoutandsensesthattheignitercircuitisopenwhen
theblowerisrunningthecontrolwillturnofftheblowerandgointolockout.
Automaticrestart2min.aftererroriscorrected.
SF
Thermistorerror Anexcessivetemperaturedifferencebetweenthetwothermistors(5°Formore)
oran“outofbounds”conditiononbothsensors(lessthan10°Forgreaterthan
180°F)willresultintheerrorcode.Automaticrestartis2minutesaftertheerror
iscorrected.
HS
Excessivewater
temperatureerror
Ifwatertemperatureexceeds105°Ftheheaterwillshutdownandgointolock-
out.Automaticrestartis2minutesafterwatertemp.dropsbelow105°F.
HE
Rapidwater
temperaturerise
Ifwatertemperaturerisestoorapidlytheheaterwillshutdownandgointolock-
out.Automaticrestartisafter2minutes.Afterthethirdoccurrenceinthesame
callforheattheheaterwilllockout.
Sb
Keypadbuttonstuck
closederror
Ifoneofthekeypadbuttonsisclosed(orpressed)formorethan30stheerror
codewillbedisplayedbutthecontrolwillcontinuetofunction.Theerrorcode
willbeclearedwhentheconditioniscorrected.
IF
Ignitionfailureerror Ifthecontrolexceedsthemaximumnumberofignitionretriesorrecyclesthe
heaterwillshutdownandgointolockout.Automaticresetis60minutes.
CE
Communicationerror Ifcommunicationbetweentheignitionboardandthedisplayboardisnotestab-
lishedwithin3sofpower-upanerrorwillbedisplayed.Aftercommunicationis
established,ifitislostfor30s,theerrorwillbedisplayed.Theerrorcodewill
becleareduponavaliddataexchangebetweenboards.
LO
Limitstringopenerror Ifthelimitstringopenstheheatershutsdownandgoesintolockout.Automatic
restartis2minutesaftertheerrorconditioniscorrectedandthelimitstring
closes.
EE EEPROMerror Anerrorwasdetectedintheignitioncontrolcircuitboard.
Figure5:ERROR CODES(continued)
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