66
PARTS REPLACEMENT
Pump
● Refer to the important information
and initial preparation on page 59.
● Release central heating water
pressure.
● Unclip the terminal box cover by
releasing the cover retaining clips
and lift to remove.
● Unplug the pump wire (2) from the
electronic board.
● Undo the three pump screws (3).
● Pull pump forward to remove.
● Fit new ‘O’ rings supplied to pump
connections.
● Re-assemble in reverse order.
Air pressure switch
● Refer to the important information
and initial preparation on page 59.
● Remove clips (6) and lift out
pressure switch (7).
● Disconnect electrical connections
(4).
● Disconnect air tubes (5).
● Re-assemble in reverse order.
Note: Air tubes should be
reconnected:
P1 (marked on air pressure
switch) to white tube.
P2 (marked on air pressure
switch) to blue tube.
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