schwankgroup.com/schwankair
SchwankAir Controller
E7
Return water
temp. sensor
error.
Fault on or missing, mandatory
Return water sensor SIReWTA
connected to Air Curtain PCB.
Try to reset the alarm. Check connections and cable. False errors can
occur in conjunction with communication error, check that all other
alarms have been reset. Measure resistance, 47kOhm at 25°C.
Wrong temperature is displayed
in Controller.
Confirm that WTA is connected to the Air Curtain PCB and securely
fastened to the return water pipe and compare with what the actual
temperature is.
Room Temp. Sensor [Optional] - sensor must not be connected to Air
Curtain PCB when the intention is to use return water sensor. When
SIReWTA is used, Room Temp. Sensor [Optional] shall be connected
to the Controller External Board.
E8
Internal
sensor Error
Fault on or missing internal
temperature sensor, SIReIT,
connected to Air Curtain PCB.
Try to reset the alarm. Check connections and cable. False errors can
occur in conjunction with communication error, check that all other
alarms have been reset. Measure resistance, 47kOhm at 25°C.
E10
Program error
[different
programs]
Two or more Air Curtain PCB
in the system have different
programs.
Try to reset the alarm. Controller can control different types of units,
e.g. Fan heaters or air curtains, water or electrical units, but they
cannot be combined. The only exception is ambient air curtains in
combination with either electrical or water heated units of the same
model. Check the datalabels of your units and contact SchwankAir
technical support.
E12
Room sensor
error
Fault on or missing external room
sensor, Room Temp. Sensor
[Optional] connected to Air
Curtain PCB.
Try to reset the alarm. Check connections and cable. False errors can
occur in conjunction with communication error, check that all other
alarms have been reset. Measure resistance, 47kOhm at 25°C.
E14
Outdoor
sensor error
Fault on or missing, mandatory
outdoor temperature sensor,
Outdoor Temp. Sensor,
connected to Controller External
Board.
Try to reset the alarm. Check connections and cable. False errors can
occur in conjunction with communication error, check that all other
alarms have been reset. Measure resistance, 47kOhm at 25°C.
E20
Communication
error
Controller External Board
[external pcboard]
do not communicate.
Try to reset the alarm. Check connections, modular cables and
terminals, between all units and components. Systematically shift
position of communication cables to identify a broken terminal or
cables.
E21
Room sensor
error
Fault on internal room
temperature sensor in
Controller.
Try to reset the alarm. Check connections and cable. False errors can
occur in conjunction with communication error, check that all other
alarms have been reset. If the error is not rectified Controller must be
replaced.
E22
Multiple control
units connected
Logging tool or an extra control
unit Controller is connected to
the system.
Try to reset the alarm. The system will only support one control unit,
disconnect and reset alarm.
E23
Firmware
error
Components of different releases
are used in the system.
Make sure all units are from the same release, contact Frico
technical support.
Error code
Cause
Action
