HygroMatik Basic - Page 72

Page 72
X
Fault Activated
Thermo Sensor
Unit shuts off au-
tomatically.
•
•
•
Thermo sensor on the top of the cylinder
has been activated (HeaterLine = 2 ther-
mo sensors, HeaterCompact = 1 thermo
sensor).
Heating element is coated by lime.
Thermosensor on the heat sink for the
solid state relay has been activated.
Openings for chimney are covered.
•
•
•
Disconnect power supply. Wait
until cylinder has cooled down.
Press the release pin back
down with needle-nose pliers a
or a screwdriver.
Remove lime.
Press the release pin back
down and remove the blocking
elements.
X
Fault Steam-
Down Time
Exceeded
• Heater element is defective. • Measure resistance of the heat-
er element, replace heater ele-
ment if needed. Heater element
resistance at 4.5 kW: ca. 36
Ohm and at 6.75 kW: 24 Ohm
Unit shuts off au-
tomatically.
• Phase failure. (External breaker has been
tripped or is defective.)
• Replace circuit breaker and
identify cause.
• Heater element is not being supplied with
current.
• Check cable connections. Mea-
sure voltage.
• Main contactor is not switching correctly. • Check main contactor, replace if
needed.
• PCB does not activate main contactor. • Measure voltage at PCB termi-
nal 9 against 15. Replace PCB if
necessary.
XX
Maintenance
Intervall
• The maintenance interval has expired. • Service or check steam humidi-
fier. Reset the maintenance in-
terval at Parameter P3 “Reset
Maintenance Interval”. With Pa-
rameter P2, the maintenance in-
terval can be adjusted to the
feed water quality.
XX
No steam produc-
tion, display
reads: no de-
mand
•
•
The humidifier shuts off in response to a
(control) signal of less than 20% and
switches back on at 25%. The demand is
too low.
Incorrect control signal adjustment.
•
•
Increase desired value.
Check settings of parameters
“E3” and “U6”.
X X Lost Ground
Control
•
•
Communication between main board and
display is disturbed
Display and / or main board defective
•
•
Check cable and RS485 inter-
face modules
(only valid for ComfortPlus con-
trol and remote control)
Change display and / or main
board
LED
Display
HE *** ESH***
Message / Mal-
function Dis-
played*
Probable Cause Resolution