14 fault finding, Central heating dhw – Glow-worm Ultrapower sxi Range User Manual

Page 51

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51

Is the power switched on?

Switch the power on

Successful ignition

Check wires between

main PCB and display

PCB

Does the display flash 'F'

during or after a DHW

demand?

Consult the Fault Table

Is there anything displayed

Is the display flashing 'F'?

Initiate a DHW demand.

Adjust DHW setpoint to

62

0

C and turn on a hot

water tap.

Does the boiler light?

No

No

Yes

Yes

Yes

Yes

Yes

No

No

No

Yes

START

Yes

No

No

Consult the State List

13012

CENTRAL HEATING

DHW

1341

1

14 Fault Finding

Diagram 14.3

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