• Click on an error code to jump to relevant description of the error code.
Micro-controller errors cause a program abort. Other errors cause a
program abort only after they have occurred several times. All errors and
their occurrence are written in the error log.
WT Power PCB or the
charging circuit of the
GoldCap capacitor on the
WT Power PCB is defective.
The GoldCap capacitor
charging voltage ON/OFF
switching element (located on
the WT Controller PCB or the
A/D channel "VIN7" on the
WT Controller PCB is
defective.
• Check the WT Power PCB as follows:
− Repair Instructions: "Checking the WT
Power PCB"
− DrägerService Mode: "Mode d07: Displaying
the GoldCap Voltage"
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
WT Sensor PCB is not
available. The micro-controller
of the WT Controller PCB
cannot read the +5V supply
voltage and the reference
voltage. The DC/DC converter
for the 5V supply voltage on the
WT Sensor PCB is defective.
The +5V supply voltage is
outside tolerance (tolerance
range: 2 V to 7 V).
A supply voltage on the
WT Power PCB is not
available.
Communication with the
WT Controller PCB is
disturbed. No measured values
are displayed.
• Check the WT Sensor PCB using the
DrägerService Mode: "Mode d10: Displaying
WT Sensor PCB Voltage".
• Replace the WT Sensor PCB, see Repair
Instructions: "Replacing the WT Sensor PCB".
• Check the WT Power PCB using the Repair
Instructions: "Checking the WT Power PCB".
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".
• Check communication in the DrägerService
Mode: tests d03 through d06, d08, d16 and
d17.
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
channel 1 on the
WT Sensor PCB is faulty.
During the 10-minute test, the
micro-controller detects that
the value of skin-temperature
channel 1 is outside tolerance.
Communication with the
WT Controller PCB is
disturbed. No measured values
are displayed.
• Check the WT Sensor PCB using the
DrägerService Mode: "Mode d16: Displaying
the Skin Temperature Channel 1 and the
Reference Value".
• Replace the WT Sensor PCB, see Repair
Instructions: "Replacing the WT Sensor PCB".
• Check the following cable connections:
− WT Sensor PCB to control unit
− Control unit to WT Power PCB
− WT Power PCB to WT Controller PCB
• Fix or replace the defective cable connection.
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
PCB".
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".
channel 2 on the
WT Sensor PCB is faulty.
During the 10-minute test, the
micro-controller detects that
the value of skin-temperature
channel 2 is outside tolerance.
Communication with the
WT Controller PCB is
disturbed. No measured values
are displayed.
• Check the WT Sensor PCB using the
DrägerService Mode: "Mode d17: Displaying
the Skin Temperature Channel 2 and the
Reference Value".
• Replace the WT Sensor PCB, see Repair
Instructions: "Replacing the WT Sensor PCB".
• Check the following cable connections:
− WT Sensor PCB to control unit
− Control unit to WT Power PCB
− WT Power PCB to WT Controller PCB
• Fix or replace the defective cable connection.
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
PCB".
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".
switch 1 on the
WT Sensor PCB is defective.
The micro-controller of the
WT Controller PCB has
detected a signal although the
measuring signal and the
reference signal of the skintemperature channel 1 are
switched off.
Communication with the
WT Controller PCB is
disturbed.
• Check the WT Sensor PCB using the
DrägerService Mode: "Mode d16: Displaying
the Skin Temperature Channel 1 and the
Reference Value".
• Replace the WT Sensor PCB, see Repair
Instructions: "Replacing the WT Sensor PCB".
• Check the following cable connections:
− WT Sensor PCB to control unit
− Control unit to WT Power PCB
− WT Power PCB to WT Controller PCB
• Fix or replace the defective cable connection.
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
PCB".
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".
switch 2 on the
WT Sensor PCB is defective.
The micro-controller of the
WT Controller PCB has
detected a signal although the
measuring signal and the
reference signal of the skintemperature channel 2 are
switched off.
Communication with the
WT Controller PCB is
disturbed.
08Read error during
configuration.
• Check the WT Sensor PCB using the
DrägerService Mode: "Mode d17: Displaying
the Skin Temperature Channel 2 and the
Reference Value".
• Replace the WT Sensor PCB, see Repair
Instructions: "Replacing the WT Sensor PCB".
• Check the following cable connections:
− WT Sensor PCB to control unit
− Control unit to WT Power PCB
− WT Power PCB to WT Controller PCB
• Fix or replace the defective cable connection.
• Replace the WT Controller PCB, see Repair
Instructions: "Replacing the WT Controller
PCB".
• Replace the WT Power PCB, see Repair
Instructions: "Replacing the WT Power PCB".