SPA
Page 72
Fault
Max.-Level
(ctd.)
Unit shuts off auto-
matically.
•
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
System failure
•
Mainboard is defective
•
Check mainboard. If neccessary
change mainboard
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 acti-
vated.
- The cable connections are faulty.
- The relay on the main PCB is not operating.
•
•
Check or replace cable connec-
tions.
Measure voltage between PCB ter-
minals 11 and 15 (N); replace PCB,
if required
•
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 fuse blowing reason
Replace main contactor.
X
Fault Main Con-
tactor
Unit shuts off au-
tomatically
•
•
Main contactor does not drop out.
Relay on the PCB is stuck.
•
•
Replace main contactor.
Replace PCB.
LED Dis-
play
H
L
***
H
y,C***
Message / Mal-
function Dis-
played*
Probable Cause
Resolution
Summary of Contents for Basic-DS
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