Warnings; Information Log - Bosch Rego 1000 User Manual

7.7.35 Failure on sensor E2x.T10
Function: Activated when the sensor's resistance value indicates a
temperature lower than -20 °C.
Reset condition: The value of the sensor indicates
> -20 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.36 Short circuit on sensor E2x.T10
Function: Activated when the sensor indicates a temperature in excess
of 70 °C.
Reset requirement: The sensor value displayed < 70 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.37 Failure on sensor E2x.T11
Function: Activated when the sensor's value indicates a temperature
lower than -50 °C.
Reset condition: The value of the sensor indicates
> -50 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.38 Short circuit on sensor E2x.T11
Function: Activated when the sensor indicates a temperature in excess
of 70 °C.
Reset requirement: The sensor value displayed < 70 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.8

Warnings

7.8.1 Electric additional heat shut down due to high temperature
E2x.T8
Function: The electric heater is turned off. The warning is activated in
additional heat mode if the outgoing temperature of the heat transfer
fluid exceeds the maximum value.
Reset condition: The warning is deactivated when the temperature
falls.
Category: K.
Alarm lamp: Yes.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer if the warning recurs often.
7.8.2 High temperature difference heat transfer fluid E2x
Function: The warning is activated when the temperature difference
between heat transfer fluid out and heat transfer fluid in becomes too
high.
Rego 1000 – 6 721 831 662 (2021/03) en
Reset condition: The warning is deactivated on acknowledgement of
the warning display.
Category: L.
Alarm lamp/buzzer: No.
Restart: The warning does not close anything but is registered in the
alarm log.
▶ Check and clean the particle filter, if required.
▶ Contact the dealer if the warning remains after acknowledgement.
7.8.3 High temperature difference collector circuit E2x
Function: The warning is activated when the temperature difference
between collector circuit out and collector circuit in becomes too big.
Reset condition: The warning is deactivated on acknowledgement of
the warning display.
Category: L.
Alarm lamp/buzzer: No.
Restart: The warning does not close anything but is registered in the
alarm log.
▶ Check and clean the particle filter, if required.
▶ Contact the dealer if the warning remains after acknowledgement.
7.8.4 The heat pump is now working in anti-freeze mode
Function: Activated when the temperature in one of the circuits
becomes too low.
Reset condition: The temperature in the circuit is increased.
Category: L.
Alarm lamp/buzzer: No.
Restart: Automatic once the alarm cause has disappeared.
▶ Contact the dealer.
7.8.5 Check connection to I/O board x
Function: Depends on the board.
Reset condition: Communication with the board is re-established.
Category: M.
Alarm lamp/buzzer: No.
Restart: Acknowledgement is required.
▶ Contact the dealer.
7.8.6 Check CANbus cable connection
Function: Communication with the controller has been interrupted. The
controller executes a new start if the alarm is still active after two hours.
If more than three new starts have been carried out within one hour, the
alarm Too high boot count I/O board BAS x (category A),  Chapter
7.7.7.
Category: M.
Alarm lamp/buzzer: No.
Restart: Acknowledgement is required.
▶ Contact the dealer if the warning recurs often.
7.9

Information log

The information log displays information from the heat pump.
7.9.1 High flow temperature E2x.T8
Function: The information is given if the temperature of the heating
medium is too high. The information can appear temporarily when high
room and hot water temperatures are set.
Reset condition: The information is deactivated when the temperature
falls to the permitted level.
Category: I.
Alarm
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