Defensor Defensor H15A, Руководство по обслуживанию

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5.4 What, if...?
The following table lists symptoms of malfunction that may occur in daily operation of the Defensor
PH... units, together with possible causes and suggested remedies.
Symptom Cause Remedy
Unit does not work, LC display
remains dark Unit is not connected to the
mains. Connect unit to the mains.
Unit fuse blown. Replace unit fuse
Unit does not humidify.
Ambient air humidity is higher
than selected reference value. No remedy required, change
reference humidity value if nec-
essary.
Float of the level switch is stuck. Clean level switch and care-
fully remove any lime scale if
necessary.
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. Replace the level switch.
Room air does not reach
the set reference humidity
value. Evaporator mat not installed. Install evaporator mat.
Room temperature too high. Reduce room temperature to
20-22°C.
Unit very dirty. Perform maintenance (see
chapter 6 in the operating
instructions)
Doors or windows are open. Close doors and windows.
Prolonged ventilation of the
room. Therefore continuous
replacement of the humidified
room air by dry outdoor air. Ventilate room only a short
time!
Room to large. Make further clarifications.
Display red LED Buzzer Error relay Resetting
Error 5
Leakage sensor
Error message is displayed
until reset.
flashes buzzes loudly
(can not be
switched off)
activated Switch unit off, then on
again.
Cause: PH15/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 defec-
tive.
PH15A/PH27A: Inlet valve defective. Level switch defective. Safety switch defective.
Action/Remedy: PH15/PH27: Check/clean filler neck, tank cap and level regulating valve in tank cap (replace
tank cap if necessary) , then close tank cap correctly. Place unit on a horizontal surface.
Check/replace safety switch.
PH15A/PH27A: Check/replace inlet valve. Check/replace level switch. Check/replace safety
switch.