What, If - Defensor PH27 Operating Instructions Manual

Display
Error 5
Leakage sensor
Error message is displayed
until reset.
Cause:
Action/Remedy: PH27: Check/clean filler neck, tank cap and level regulating valve in tank cap (replace tank cap
7.4

What, if...?

The following table lists symptoms of malfunction that may occur in daily operation of the Defensor
PH27/PH27A, together with possible causes and suggested remedies.
Symptom
Unit does not work, LC display
remains dark
Unit does not humidify.
Room air does not reach
the set reference humidity
value.
Actual humidity much higher
than the reference value.
red LED
flashes
PH27: Water tank not tight (tank cap not tight and/or level regulating valve in the tank cap
blocked or defective). Unit is not placed on a horizontal surface. Safety switch defective.
PH27A: Inlet valve defective. Level switch defective. Safety switch defective.
if necessary) , then close tank cap correctly. Place unit on a horizontal surface. Check/replace
safety switch.
PH27A: Check/replace inlet valve. Check/replace level switch. Check/replace safety switch.
Cause
Unit is not connected to the
mains.
Unit fuse blown.
Ambient air humidity is higher
than selected reference value.
Level switch is defective. There-
fore no error message is dis-
played even though the wa-
ter level in the base tub is too
low.
Evaporator mat not installed.
Room temperature too high.
Unit very dirty.
Doors or windows are open.
Prolonged ventilation of the
room. Therefore continuous
replacement of the humidified
room air by dry outdoor air.
Room to large.
The actual humidity is higher
than the set reference air hu-
midity.
Buzzer Error relay
buzzes loudly activated
(can not be
switched off)
Remedy
Connect unit to the mains.
Have a service technician of
your Defensor supplier check
the unit.
No remedy required, change
reference humidity value if nec-
essary.
Have a service technician of
your Defensor supplier replace
the level switch
Install evaporator mat.
Reduce room temperature to
20-22°C.
Perform maintenance (see
chapter )
Close doors and windows.
Ventilate room only a short
time!
Contact your Defensor sup-
plier.
Let unit running as air purifier.
37
Resetting
Switch unit off, then on
again.