Flo' Appears On Display - Hayward HydroRite UVO3 Troubleshooting Manual

3. 'FLO' Appears on Display

'FLO'
Appears
YES
Problem
solved
Contact tech
YES
support:
(908) 355-
7995
Replace
YES
interlock
switch
assembly
38
*NOTE: 15GPM is enough to satisfy the flow switch requirement, but not enough for Ozone infusion,
YES
Pump is
running?
NO
Turn on
pump, after 3
mins did 'FLO'
clear?
NO
Check
interlock
cable, is it
damaged?
NO
Is interlock
connection
secure?
NO
Secure
connection &
which requires 38GPM minimum.
YES
Flow is a min.
of 15GPM*?
NO
Increase
pump speed
& retest
YES
Unplug new
flow switch &
restore
interlock
connection
retest
YES
Is filter
clean?
NO
Clean filter
& retest
Turn pump on
& close new
flow switch,
does the error
clear?
NO
Plug interlock switch
back in & replace the
existing flow switch,
turn on pump, did
the error clear?
NO
Plug a new flow
switch into the
interlock port
Problem
solved
YES