7 181 465 347 (01.07)
Rectifying faults
35
FC flashing.
Text display module not detected
Check Action
1. No fault or fault code FC displayed
on text display?
B Power OFF the appliance.
B Fit code plug (correctly), making sure code
number is correct (see Appendix).
B Turn ON the appliance.
FC? ↓2.
2. B Unplug text display module con-
nector.
B Connecting lead between text dis-
play module and Heatronic OK.?
yes: B Plug in connector.
FC? ↓3.
no: B Replace text display module.
FC? ↓3.
3. Text display module defective. B Replace text display module.
Fd and flashing.
Reset button pressed inadvertently
Check Action
1. B Press button again.
2. The PCB control board is damaged. B Disconnect the boiler electrical connection.
B Change PCB control board.
B Reconnect the boiler electrical connection.
B Turn ON the appliance.
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