Troubleshooting - Td 200 - Worcester CDi Combi N.G Service Booklet

11

TROUBLESHOOTING - TD 200

Faults in the devices using the bus are displayed.
A fault in the heating appliance is shown in the display
with corresponding help texts.
Display
TD 200 defect
No Bus communication
On/Off
instead of
Room temperature
Only Service modes are
displayed, e.g.:
Service 1.A:
and maximum central
heating heatout.
The following appears
each time the button is
pressed:
press ok to go back
Key lock function is
active...
No display
Tab. 36
8 716 115 748 (2009/09)
Supplied By www.heating spares.co Tel. 0161 620 6677
Cause
Temperature sensor in the TD 200
defective
The TD 200 using the bus no longer
responds.
Heating appliance using the bus no
longer responds.
TD 200 not detected during
commissioning. Set
No error:
Service mode at heating appliance
active.
Key lock is active.
Heating appliance is switched off.
A "YS Plan" is connected
TROUBLESHOOTING - TD 200
Remedy
Emergency mode:
The heating automatically goes into On / Off
mode.
Room temperature
If continues to be displayed
during the standard display:
Set RT10 equipped? to No.
Check the bus connection and if necessary rectify
the interruption.
Have TD 200 replaced by a professional.
Check the bus connection and if necessary rectify
the interruption.
Check the bus connection and if necessary rectify
the interruption.
Set RT10 equipped? to Yes.
Press the Service button on the heating
appliance.
Deactivate key lock.
Switch on heating appliance.
No function for TD 200 possible.
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