SPA
Page 73
X X
Fault °C sensor
•
Temperature sensor or line defective.
•
Check temperature sensor and
sensor line, replace if needed.
Unit shuts off auto-
matically.
•
Short circuit in sensor wire (no resistance).
•
Replace temperature sensor.
X
Fault Level sen-
sor
Unit shuts off auto-
matically.
•
•
Cable connections for the float switch are
faulty.
Plug for the float switch is not connected to he
control
•
•
Check cable connections, replace if
needed.
Connect plug to the control.
X X
Fault °C Max
Unit shuts off auto-
matically.
•
Heat buildup in the cabin.
•
Ensure continuous heat removal.
•
Additional heat source in the steam cabin.
•
Excessive power retention.
•
check Parameter G9.
X
Fault Activated
Thermo Sensor
Unit shuts off auto-
matically.
•
•
Thermo sensor on the top of the cylinder was
activated (HeaterLine = 2 thermo 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 un-
til cylinder has cooled down. Press
the release pin back down with
needle-nose pliers a or a screwdri-
ver.
Remove lime from heater element.
Press the release pin back down
and remove the blocking elements.
X
Fault steam-down
•
Heater element is defective.
•
Measure resistance of the heater
element, replace heater element if
needed. Heater element resistance
at 4.5 kW: approx. 36 Ohm and at
6.75 kW: 24 Ohm
Unit shuts off auto-
matically.
•
Phase failure. (External breaker has been
tripped or is defective.)
•
Replace circuit breaker and identify
cause.
•
Heater element is not supplied with current.
•
Check cable connections. Measure
voltage.
•
Main contactor is not switching correctly.
•
Check main contactor, replace if
needed..
•
PCB does not activate main contactor.
•
Measure voltage at PCB terminals
9 against 15. Replace PCB if re-
quired.
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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