Service
45
Control 8313 – 6720859567 (2017/03)
20.5 Fault history
To call up the fault history:
▶ Call up the service menu.
▶ Tap the symbol.
▶ Tap symbol.
Fig. 35 Calling up the fault history
[1] Symbol for calling up the fault history
The Fault history menu shows the faults and service displays of the
heating system. The user interface shows only the faults and service
displays of the selected heat source.
If more faults and service displays than can be displayed on one page
exist, scroll through the pages with the arrows in the footer.
Fig. 36 Fault history
[1] Event identifier
[2] Occurred (date, time)
[3] Ended (date, time)
[4] Device
[5] Message text
20.6 Troubleshooting
The fault history depends on the modules used.
Faults caused by the control unit, are automatically deleted once the fault
has been rectified.
Faults caused by the burner control unit of the heat source must be reset
at the control or the heat source, depending on the type of fault:
▶ Observe documents of the heat source!
Enter the following data for faults you cannot rectify yourself:
• Control unit type on the data plate ( Fig. 3, [9], page 8)
• Software version ( Chapter 15, page 37)
0010008699-001
12:00
1
1
2 3 4 5
0010008700-001
Fault,
observation
Effect on control characteristics Reason Remedy
Display is dark Control not working • The heating system emergency stop switch
is off.
▶ Switch on the heating system emergency
stop switch.
• The control unit is switched off. ▶ Switch on the control unit.
• The control unit safety equipment has been
triggered.
▶ Push in the pin.
• A safety device has been triggered. ▶ Check circuit breaker.
Module not
working
Modules not working • The power supply between the modules has
not been connected.
▶ Connect the power supply
• The control unit safety equipment has been
triggered.
▶ Push in the pin.
Module not
supported
The module is not recognised. • The inserted module is faulty or the
software version is outdated.
▶ Replace module.
xxx °C Operation of the control unit continues • Sensor not installed, defective or outside
the measuring range.
• Module faulty.
▶ Check sensor and sensor port.
▶ Replace the sensor if necessary.
▶ Replace the module if necessary.
Outdoor
temperature
sensor is
defective
The control expects the minimum
outdoor temperature.
• The outside temperature sensor is
incorrect, not connected at all or defective.
• The ZM5313 central module or the control
unit is faulty.
• Communication with the control unit with
address ≥ 1 has been interrupted.
▶ Check whether the outside temperature
sensor is connected to the right control
unit (to the control unit with address 0 in
systems containing several heat
sources).
▶ Check communication with the control
units.
▶ Replace outside temperature sensor or
central module.
Defective flow
temperature
sensor
The mixing valve opens fully. • The temperature sensor is incorrectly
connected. If a mixing valve was selected in
the user interface, the control requires the
corresponding flow temperature sensor.
• The FM-MM module or the control unit is
faulty.
▶ Check sensor port.
If the faulty heating circuit is to be operated
as a heating circuit without mixer:
▶ Check whether Actuator No has been
selected ( Tab. 10, page 22).
▶ Replace the module if necessary.