Electrolux T5190LE Service Manual page 74

Service Manual
74
11:27 LEVEL OFFSET
This error code is shown at program start if the level sensor indicates a level above what the control system CPU can
compensate for. If high level is indicated a attempt is made to first drain the machine.
Maximum allowed level offset is defined in Config. 2 parameter MAX LEV. ZERO OFFS.
The drain time before error code is triggered is defined in Config. 2 parameter MAX DRAIN TIME START.
Possible causes:
This error can be caused by defective level control, blocked drain, blocked level hose, a drop of water in the level
hose, etc.
Recommended actions:
1. Check in the service program that the level control is working correctly.
2. Blow through the level hose and check that it is not blocked and does not contain any water.
3. Check drain for dirt.
11:28 WATER LEVEL HIGH DLCU LEVEL LOW
The DLCU on I/O type 10 contains a mechanical DLCU level switch which ensures that there is no water in the ma-
chine when the door unlocks. To ensure that the DLCU level switch functions correctly, the DLCU level switch status
is compared with a predefined value from the electronic level sensor. During first fill, this check is made to ensure that
the mechanical level switch is activated when the water level exceeds the predefined value. If not, this error code is
shown.
Predefined level value is defined in Config. 2 parameter LEVEL DLCU.
Possible causes:
• The mechanical level control can be damaged.
• Leakage or clogged level controls air hoses.
Recommended actions:
1. Check function of mechanical level switch by reading DLCU status in service mode.
2. Check the analog level control function by checking value in inputs.
3. Blow through the level hoses and check that they are not blocked and does not contain any water.
4. Check the cables and their connections.
11:29 WATER LEVEL LOW DLCU LEVEL HIGH
The DLCU on I/O type 10 contains a mechanical DLCU level switch which ensures that there is no water in the ma-
chine when the door unlocks opens. To ensure that the DLCU level switch functions correctly, the DLCU level switch
status is compared with the value from the electronic level sensor. At program start and program end, when the water
level is below LEVEL EMPTY value, a check is made to ensure that the mechanical level switch is not activated If it is
activated, this error code is shown.
The level empty value is defined in Config. 2 parameter LEVEL EMPTY.
Possible causes:
• The mechanical level control can be damaged.
• Mechanical level control is not connected or bad there is bad contact in the connector.
• Leakage or clogged level controls air hoses.
• Incorrect nominal value, possibly caused by a error in the electronic level control.
Recommended actions:
1. Check function of mechanical level switch by reading DLCU status in service mode.
2. Check the analog level control function by checking value in inputs.
3. Blow through the level hoses and check that they are not blocked and does not contain any water.
4. Check the cables and their connections.
11:126 CO2 BOTTLE EMPTY
This is only a warning message.
Shown when CO2 bottle is about to be empty and input CO2 BOTTLE EMPTY is actvated.
Program will continue when message has dissappeared.