Text Display Module Not Detected; Reset Button Pressed Inadvertently - Worcester ZSBR 7-28 ICS1 Service Booklet

F C
flashing.

Text display module not detected

Check
1. No fault or fault code FC displayed
on text display?
B Unplug text display module con-
2.
nector.
B Connecting lead between text dis-
play module and Heatronic OK.?
3. Text display module defective.
F d
and

Reset button pressed inadvertently

Check
1.
2. The PCB control board is damaged.
7 181 465 347 (01.07)
yes:
no:
flashing.
Action
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.
B Plug in connector.
FC? ↓3.
B Replace text display module.
FC? ↓3.
B Replace text display module.
Action
B Press button
again.
B Disconnect the boiler electrical connection.
B Change PCB control board.
B Reconnect the boiler electrical connection.
B Turn ON the appliance.
Rectifying faults
35