73MSPA-MP Metapacks Service Manual
How To Adjust The Pressure Switch
When a voltmeter is not available:
1• Turn Pump 1 off.
2• Decrease the pressure switch setting
to 0.5 P.S.I. or until three flashing dots
are displayed.
3• Start increasing pressure switch setting
by very slowly turning adjustment
screw clockwise until three flashing
dots disappear, then another full turn.
4• Turn pump on at low speed for 30
seconds; there should be no flashing
dots on display.
5• Turn pump off and wait 30 seconds.
You should not see the three flashing
dots.
6• If you see an error, restart the adjust-
ment procedure.
If you are not able to adjust the pres-
sure switch, change it.
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