Nordmann AT4 - Malfunction Lists; System Faults

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7.2 Malfunction lists
Important! Most operational malfunctions are not caused by faulty equipment
but rather by improper installation or disregarding of planning guidelines.
Therefore, a complete fault diagnosis always involves a thorough examina
tion of the entire system. Often, the steam hose connection has not been
properly executed, or the fault lies with the humidity control system.
7.2.1 System faults
Warning Error Cause Remedy
LED Display LED Display
CF card missing
(Test run possible)
CF card missing
–––
Warning
W1: CF-Card Missing
red
lights
Error
E1: CF-Card Missing
No CF card installed on the control board. Install CF card or start test run.
CF card is empty
––– ––– red
lights
Error
E2: CF-Card Empty
No data stored on the CF card. Install new CF card.
CF card is defective
––– ––– red
lights
Error
E3: CF-Card Invalid
Invalid data stored on the CF card. Install new CF card.
CF card is incompatible
––– ––– red
lights
Error
E4: CF-Card Incompat
The installed CF card is not compatible with
the hardware of the unit or with the basic
settings of the control electronics.
Install correct CF card. Let your Nord-
mann service technician adjust the basic
settings.
Module B missing
––– ––– red
lights
Error
E5: Module B missing
Module B not correctly connected or
defective.
Check module B and connecting cables
between module A and module B.
Wrong hardware settings
––– ––– red
lights
Error
E9: Illegal Settings
False test run parameters. Let your Nordmann service technician adjust
the test run parameters (heating voltage,
Cylinder-No.).
Hardware fault
––– ––– red
lights
Error
E10: Flash R/W Fault
Control board defective. Replace control board.
––– –––
Error
E11: Clock R/W Fault
Backup battery on control board
discharged.
Let have the backup battery be replaced
(see chapter 7.5).
On/Off timer active
–––
Warning
W12: Timer Disable
––– ––– The system is deactivated via the On/
Off-Timer.
None. If necessary adjust On/Off timer
settings.
Test Mode active
–––
Warning
W16: Test Mode Active
––– ––– Diagnostic mode active (Remote Test,
Module Test etc.)
Quit diagnostic mode.
Humidier missing
–––
Warning
W17: Unit Missing
––– ––– The optional remote terminal does not
have connection to one or more units.
Check connecting cable. Check/correctly set
Modbus settings (modbus address, interface
parameters).