English 5.906-548.0 Rev. 00 (04/12)
13
5.1.1 Indicator lamps
Indicator
lamp
Activity
Meaning / measure
blinks once
–
Oil shortage pump
Replenish oil.
blinks twice
–
Leak in the high pressure system
Check high pressure system and connections for tightness.
blinks thrice
–
Lack of water, the pump is switched off to prevent dry runs after a 2 minute
delay.
Check water supply, check connections.
blinks four times
–
Pump and heater switch off, fault in auxiliary relay of heater
Set the appliance switch to "0/OFF“.
Turn on the appliance.
–
Error occurs repeatedly.
Recheck the auxiliary relay of the heater K5, replace.
glow
–
Lack of water in the boiler - heater is switched off
Check water connection, check water supply.
glow
The appliance is now ready for operation.
blinks once
Either the device was in continuous operation for 30 minutes or in standby
mode for 30 minutes. Pump and heater are switched off.
glow
Heater is switched on.
blinks twice
–
Engine overloaded/overheated, winding protective contact open
Set the appliance switch to "0/OFF“.
Allow device to cool down.
Turn on the appliance.
–
Error occurs repeatedly.
Ascertain the cause for the overheating and rectify it.
blinks thrice
–
Fault in the voltage supply (low voltage, overvoltage, phase failure).
Check main connections and mains fuse.
blinks four times
–
Current pickup too high or asymmetric current pickup.
Check main connections and mains fuse.
Check the motor and the pump for ease of operation.
blinks once
–
Temperature limiter in the boiler was triggered
Set the appliance switch to "0/OFF“.
Allow boiler to cool down.
Turn on the appliance.
–
Error occurs repeatedly.
Check the temperature limiter, the temperature sensor and the heating el-
ement for calcification.
blinks thrice
–
System care detection defective
Check/replace the RFID electronics.
blinks four times
–
Temperature sensor defective (broken cable, short circuit).
Check / replace the temperature sensor.