HANROAD TREK4 - Water Heater

136
7000056136-0
EN
Display screen Description Action / Solution
Restricted
Operation
Heater is operating in
backup mode.
Heater has a fault.
Operation in degraded mode with
a set temperature of 20°C remains
possible.
Contact Customer Service.
Error messages from the control unit
Display screen Description Action / Solution
1
Ext. Temp. Sensor
defective
External temperature
sensor defective.
Check the wiring of the
temperature sensor.
Replace temperature sensor if
necessary.
Contact Customer Service.
2
Int. Temp. Sensor
defective
Internal temperature
sensor defective.
Replace control element.
Contact Customer Service.
3
Rotary Knob
jammed
Control knob is blocked. Reposition the control knob by
hand.
Contact Customer Service.
4
Push button
jammed
The knob is blocked. Reposition the control knob by
hand.
Contact Customer Service.
7
Timer mode not
allowed
Timer mode is not
accessible.
Check conguration.
Contact Customer Service.
8
Operation not
supported
The heater operates in
additional heating mode
via the auxiliary heating
connection (S+) and
cannot be controlled.
Contact Customer Service.
9
CAN communi-
cation error
Communication error in
the CAN bus connection.
Check wiring.
Contact Customer Service.
6.5 - Water heater
Only approved, specialist personnel can repair the device.
In case of fault, contact HANROAD Customer Service.