Operating instructions

37
7.3 Error messages
Display red LED Buzzer Error relay Resetting
Error 1
Cover open
Error message is displayed
until the water tank carriage
(PH28) or the side cover
(PH28A) is inserted correctly
and locked.
ashes ––– activated Automatic resetting as
soon as the water tank
carriage (PH28) or the
side cover (PH28A) is
inserted correctly and
locked.
Cause: Water tank carriage (PH28) or side cover (PH28A) not inserted and locked.
Action/Remedy: Correctly insert water tank carriage (PH28) or side cover (PH28A) and lock it.
Error 2
Max Niveau
Error message is displayed
until reset.
ashes buzzes loudly
(can not be
switchedoff)
activated Switchunitoff,thenon
again.
Cause: Maximumwaterlevelinthebasetubexceeded.Safetyswitchhastriggered.
PH28: water tank not tight (tank cap not tight and/or level regulating valve in the tank cap
blockedordefective).
 PH28A:inletvalvedefective.
Action/Remedy:PH28:Removethetankimmediately.Check/cleanllerneck,tankcapandlevelregulating
valveintankcap(replacetankcapifnecessary),thenclosetankcapcorrectly.
PH28A: check/replace inlet valve.
Error 3
Filltime
Error message is displayed
until reset.
ashes buzzes activated Switchunitoff,thenon
again.
Note: ThismessageisdisplayedonlyontheDefensorPH28A
Cause: Shut-offvalveinthewatersupplylineclosed.Internalwaterlter(neartotheinletvalve)
blocked.Inletvalvedefective.
Action/Remedy:openshut-offvalveinthewatersupplyline.Cleanwaterlter(seechapter6.3).Check/replace
inlet valve.
Error 4
No signal
Error message is alternating
with the standard operating
display.
ashes beepsbriey
every 6 min-
utes
activated Automatic resetting as
soon as the unit re-
ceivesasignalfromthe
radio humidity sensor.
Cause: TheDefensorPH28/PH28Adoesnotreceiveanysignalfromtheradiohumiditysensor(op-
tion).Batteryoftheradiohumiditysensorsoonemptyorradiohumiditysensordefective.
Radiohumiditysensorinstalledoutsidethesignalrangeof25m.
 Note:Aslongastheunitdoesnotreceiveanysignalfromtheradiohumiditysensoritswitches
to the internal humidity sensor.
Action/Remedy:Replacethebatteryoftheradiohumiditysensor.Check/replaceradiohumiditysensor.Install
radio humidity sensor inside the signal range.