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TROUBLESHOOTING - FR110
9 TROUBLESHOOTING - FR110
BUS device faults are indicated.
If the controller shows Fault 12, the cylinder temperature is so high that the cylinder High Limit
Thermal Cut-out has tripped.
B Reset the High Limit Thermal Cut-out.
9.1
TROUBLESHOOTING USING THE DISPLAY
The current fault is indicated on the controller:
9 12 h 15
1
6
3
18
2
B Identify the BUS device affected by the current fault.
The fault can only be rectified on the BUS device from which the fault originates.
4
3 24 h
21
8716115748-10.1Wo
3
4
Fig. 17 Fault display
1
2
Fault number
BUS device which detected the fault and reported it to the controller
Description of fault
Code or additional information about fault
Information displayed
(Æ items 1, 3 and 4 in Fig. 17 )
Text
Fault 01
BUS communication fault
Fault 02
Internal fault
Fault 02
Internal fault
Some parameters reset to factory settings due to EEPROM problem
Fault 02
Internal fault
FR110 can no longer control the CH system
Fault 03
Room temp sensor faulty
Code Cause
200 Boiler no longer reporting.
Remedy
Check BUS device, BUS connection and repair circuit break if necessary.
Identify and replace incorrect 201 Incorrect BUS subscriber connected.
BUS device.
40 Incorrect module type detected.
Replace IPM.
100 ISM not responding.
Check BUS connection and repair circuit break if necessary.
205 Some parameters reset to default. Check parameter settings and
255 FR 110 can no longer control the heating system.
readjust them as necessary.
Identify faulty controller and replace.
Identify faulty controller and replace.
20
21
There is a circuit break on the room temperature sensor built into the FR 110.
There is a short circuit on the room temperature sensor built into the FR 110.
Identify faulty controller and replace.
Tab. 32
8 716 115 748 (2009/09) 63
TROUBLESHOOTING - FR110
Information displayed
(Æ items 1, 3 and 4 in Fig. 17 )
Text
Fault 11
System configuration: new BUS device
New ISM detected. Power up all ISMs simultaneously and start automatic system configuration.
Fault 12
System configuration: BUS device missing
ISM1 not detected. Check connection.
Fault 13
System configuration: BUS device changed or replaced
Check system configuration for DHW or start automatic system configuration.
Fault 13
System configuration: BUS device changed or replaced
Check system configuration for heating circuit x and connections on IPM for heating circuit x.
Fault 14
System configuration: incompatible
BUS device
DHW controlled by boiler. IPM control of DHW has no effect.
Fault 14
System configuration: incompatible
BUS device
IPM for cylinder must be set to identification 3 or higher.
Fault 19
Unable to save parameter settings
Code Cause
131
132
New ISM detected.
Remedy
Power up all ISMs simultaneously and start automatic system configuration.
170
171
HLC has tripped or is faulty.
Check HLC.
Check solar parameter T2
ISM1 no longer detected despite
Is thermal disinfection active?
Check connection.
having been configured.
157 BUS device changed or replaced.
Check system configuration for hot water system or start automatic system configuration.
159 BUS device changed or replaced.
Check system configuration for heating circuit x.
117 Incompatible BUS device:
118
119
Incompatible BUS device:
Identify incompatible BUS device and remove from the system.
Set IPM for cylinder to coding 3 or higher.
Fault 33
Temperature sensors incorrectly connected
Fault 40
Temperature sensor T1 on collector group 1 faulty
Fault 41
Temperature sensor T2 at bottom of solar cylinder faulty
Tab. 32
202
22
101
BUS device is configured but not available at present.
A temperature sensor is connected to the IUM.
Short circuit on the sensor lead
(T
1
).
102 Break in the sensor lead (T
1
).
103 Short circuit on the sensor lead
(T
2
).
104 Break in the sensor lead (T
2
).
Check system layout, check system configuration, modify if necessary and set parameter again.
Remove the temperature sensor and insert a coding plug if necessary.
Check temperature sensor (T
1
) and replace if necessary.
Check temperature sensor (T and replace if necessary.
2
)
64 8 716 115 748 (2009/09)
TROUBLESHOOTING - FR110
Information displayed
(Æ items 1, 3 and 4 in Fig. 17 )
Text
Fault 50
Solar pump jammed or air in system
Fault 51
Incorrect temperature sensor type connected
Fault 52
Temperature sensors reversed
Fault 53
Temperature sensor fitted in wrong location
Fault 54
Temperature for thermal disinfection not reached in solar cylinder
Fault 55
Solar system not yet commissioned
Fault 56
At least one pump/valve in manual mode
Code Cause
121 Solar pump (SP) sticking due to physical blockage.
Air in solar thermal system.
122 Collector temperature sensor type used as cylinder temperature sensor (T
2
).
123 Cylinder temperature sensor type used as collector temperature sensor (T
1
)
132 Temperature sensor type PTC
1000 used as cylinder temperature sensor (T
2
).
133 Temperature sensor type PTC
1000 used as collector temperature sensor (T
1
).
124 Temperature sensors (T
1
and T
2
) reversed.
Remedy
Unscrew and remove the slotted screw on the pump head and use a screwdriver to release the pump shaft. Do NOT strike the pump shaft with the screwdriver.
Bleed solar system and top up with heat transfer fluid if necessary.
Use correct type of temperature sensor. Æ Technical data in ISM installation instructions.
125 Collector temperature sensor (T
145 fitted on collector array inlet.
Maximum temperature for solar cylinder too low.
Delivery rate of disinfection pump
(PE) too low.
Thermal disinfection cancelled manually before the required temperature was reached in the solar cylinder.
146 Solar system is not yet in operation.
1
)
Check the temperature sensors and swap the connections if necessary.
Fit collector temperature sensor
(T
1
) close to collector array outlet.
Set higher maximum temperature for solar cylinder.
Æ Limiting cylinder temperature.
Set higher pump speed on disinfection pump (PE) or, if possible, open flow restrictor more.
This is not a fault. Message is shown only for 5 minutes.
147 Pump (SP) in manual mode.
Fill, bleed and prepare the solar thermal system for commissioning according to its documentation. Then start up the solar system.
Reset parameters for pump or valve to “Auto”.
Tab. 32
8 716 115 748 (2009/09) 65
TROUBLESHOOTING - FR110
Information displayed
(Æ items 1, 3 and 4 in Fig. 17 )
Text
Fault 59
Mass flow rate in solar system too high/ low.
Code Cause
201 Mass flow rate in solar system for collector group 1 is too high.
202 Mass flow rate in solar system for collector group 1 is too low.
Remedy
Set mass flow in solar system correctly (e.g. increase/ decrease pump speed) and if necessary open or close flow restrictor more on solar station.
Guide figure: 20 - 40 kg/m 2 of collector area per hour.
Check setting for collector area, type and climate zone on Solar optimisation menu.
Tab. 32
66 8 716 115 748 (2009/09)
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