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27
Rectifying faults
Error E9
5. Is lead disconnected from CH flow
safety temp. limiter?
yes: B Power OFF the appliance.
B Reconnect lead.
B Turn ON the appliance.
B Press , restart the appliance.
E9? ↓
6.
no:
↓
6.
6. B Power OFF the appliance.
B Disconnect lead to CH flow safety
temperature limiter.
B Measure the CH flow safety tem-
perature limiter for continuity.
Resistance very high?
yes: B Change CH flow safety temperature limiter.
B Connect CH flow safety temperature limiter.
B Turn ON the appliance.
B Press , restart the appliance.
E9? ↓
7.
no: B Connect CH flow safety temperature limiter.
B Turn ON the appliance.
↓
7.
7. B Power OFF the appliance.
B Remove fuse SI 3 from appliance
PCB control board and test for
continuity.
Resistance very high?
yes: B Change the fuse.
B Turn ON the appliance.
B Press , restart the appliance.
E9? ↓
8.
no: B Remount the fuse.
B Turn ON the appliance.
↓
8.
8. The PCB control board is damaged. B Make a note of the altered service settings (see
table 1 on page 7).
B Power OFF the appliance.
B Disconnect the boiler electrical connection.
B Change PCB control board.
B Reconnect the boiler electrical connection.
B Turn ON the appliance.
B Restore service settings previously noted down.
E9 and flashing.
Safety temperature limiter has tripped.
Check Action
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