Glow-worm Swift flow 80 Instructions For Use Installation And Servicing page 38

Continued from diagram 3.7
Does pump operate?
YES
Isolate supply. Isolate external controls
from terminals 1 and 2 of the five pole
connector. Link terminals 1 and 2 in the 5
pole connector. Restore supply.
Does pump operate?
Isolate supply. Disconnect wiring at
selector switch. With switch in the "ON"
position is there continuity across switch terminals?
Reconnect selector switch.
Disconnect block 4 from PCB.
Is there continuity across selector switch pins on
block 4?
Link terminals 5 and 6 on block 6.
Restore supply.
Does pump operate?
Faulty control PCB. Replace.
221469B
3 Fault Finding
NO
NO
YES
YES
NO
YES
Check wiring of external controls,
rectify as necessary.
NO
Faulty switch. Replace.
NO
Check continuity from block 4 to
selector switch. Rectify as necessary
Check continuity of cable between
YES
five pole connector and block 6.
Rectify as necessary.
38
Diagram 3.8