C6 and fault indicator LED are flashing. Fan speed too low
Step | Check | Action | |
---|---|---|---|
1. | Fan cable connector correctly connected on fan? | yes: | go to step 2 |
no: | ▶ Switch OFF the appliance. ▶ Reconnect connector. ▶ Switch ON the appliance. C6? go to step 2 |
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2. | Check power supply to appliance, check supply with all electrical appliances on. Is the supply voltage within tolerance (230 V AC 10)? | yes: | go to step 3 |
no: | ▶ Switch off some electrical appliances. go to step 3 | ||
3. | Is fan cable defective? ▶ Switch OFF the appliance. ▶ Disconnect the boiler power connection. ▶ Measure the fan lead for continuity. Is there continuity for each one of the cores? | yes: | go to step 4 |
no: | ▶ Replace fan cable. ▶ Reconnect the appliance power connection. ▶ Switch ON the appliance. C6? go to step 4 |
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4. | Fan defective. | yes: | ▶ Switch OFF the appliance. ▶ Disconnect the boiler power connection. ▶ Un-plug the connection wire. ▶ Replace fan. ▶ Push on the connection wire. ▶ Reconnect the appliance power connection. ▶ Switch ON the appliance. C6? go to step 5 |
5. | The PCB is damaged. | ▶ Make a note of the altered service function settings (see table 4 on page 6) in order to keep the altered values. ▶ Switch OFF the appliance. ▶ Disconnect the boiler power connection. ▶ Change PCB control board. ▶ Reconnect the appliance power connection. ▶ Switch ON the appliance. ▶ Restore service settings previously noted down. |