SPA
Page 75
Fault
Max.-Level
ctd.
•
Solenoid valve does not close properly. Water
level in the cylinder rises slowly even though
the solenoid valve has not been activated.
•
Check solenoid valve.
•
Water is supplied even thoough the steam
humidifier is switched off. Solenoid valve
remains open.
•
Clean solenoid valve.
•
Inlet solenoid valve is receiving a constant
electric signal. (If the unit is turned off, water
feeding stops.)
•
The relay on the main PCB has
stuck. Measure voltage at PBC-
terminal 10 against N.
•
Large amounts of deposits are interfering with
and disrupting the blow-down cycle. Due to
extra water entering the flushing mechanism,
the max.-level is reached during the blow-
down process.
•
Clean humidifier, drain assembly
and hose to the control cylinder.
X X
Fault filling
Unit shuts off auto-
matically.
•
Solenoid valve or feed line is fouled or defec-
tive.
•
Clean or replace solenoid valve or
feed line.
•
Defective coil.
•
Measure coil and replace.
•
Water supply is not open.
•
Open water supply.
•
Solenoid valve has not been electrically
activated.
- The cable connections are faulty.
- The relay on the main PCB is not operating.
•
•
Check or replace cable connec-
tions.
Measure voltage atPCB terminal
11 against N
ggf. Platine erneuern.or replace
PCB
•
The steam hose has not been laid at enough
of an incline, causing a water pocket to form.
The steam flow is obstructed.
•
Check placement of steam hose.
Remove water pocket.
•
•
For Electrode Steam Humidifiers:
Phase L3 is missing (external safety fuse is
defective).
defective main contactor.
•
•
Replace external safety fuse.
Check for the reason that caused
the fuse blow.
replace main contactor.
LED Dis-
play
H
L
***
H
y
,C***
Message / Mal-
function Dis-
played*
Probable Cause
Resolution
