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Problem
Flushometer has
been serviced and
DOES NOT operate
Lights operate as
expected but valve
will not flush
Valve will not flush
Valve will flush
but shuts off
immediately when
activated
Water running
Slight water leak into
into fixture when
fixture
flushometer not
activated.
No water
MMO button not
flowing from the
operating
flushometer
NOTICE
If the issue persists, contact Delta Commercial Technical Service at 1-800-387-8277 (Canada).
Indicator
Re-assembled incorrectly.
Solenoid not connected to controller
or damaged.
Diaphragm may be dirty or
damaged.
Water supply is turned off.
The Regulating Screw may require
adjustment.
Inlet filter may be partially or
completely obstructed.
Diaphragm may be dirty or
damaged.
Solenoid damaged.
Diaphragm caught on seat.
Inlet filter may be partially or
completely obstructed.
MMO Button may be worn or
obstructed.
Diaphragm not installed correctly.
MMO button obstructed or
damaged.
Cause
Check that the Cap/Solenoid Assembly has been put on the body
properly.
The Regulating Screw should always be on the same side as the inlet
stop.
1. Verify wiring is connected correctly. The solenoid is connected black
to black, red to red with the electronic compartment.
2. Replace cap/solenoid & regulating screw assembly if required. See
"Cap/Solenoid & Regulating Screw Assembly Maintenance (see
Figure 17)" on page 40
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly if required. See
Guide Assembly And Seat Maintenance (see Figure 18)" on page
42
for instructions.
Verify water supply is turned on.
Adjust by slowly turning the regulating screw RIGHT (clockwise) (except
on models that have a fixed volume). See
(see Figure 9)" on page 14
1. Clean or replace inlet filter
2. Replace inlet filter if required. See
Figure 15)" on page 38
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly f required. See
Guide Assembly And Seat Maintenance (see Figure 18)" on page
42
for instructions.
Replace cap/solenoid & regulating screw assembly if required.
See
"Cap/Solenoid & Regulating Screw Assembly Maintenance (see
Figure 17)" on page 40
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly if required. See
Guide Assembly And Seat Maintenance (see Figure 18)" on page
42
for instructions.
1. Clean or replace inlet filter.
2. Replace inlet filter if required. See
Figure 15)" on page 38
1. Clean MMO button assembly.
2. Replace MMO button assembly if required. See
Maintenance (see Figure 19)" on page 43
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly f required. See section
"Diaphragm/Guide Assembly And Seat Maintenance (see Figure 18)"
on page 42
1. Clean MMO button assembly.
2. Replace MMO button assembly if required.. See
Maintenance (see Figure 19)" on page 43
Page 31 - 47
216039, Rev. D
Solution
for instructions
"Flush Volume Adjustment
for details on adjusting.
"Inlet Filter Maintenance (see
for instructions.
for instructions.
"Inlet Filter Maintenance (see
for instructions.
for instructions.
for instructions.
for instructions.
"Diaphragm/
"Diaphragm/
"Diaphragm/
"MMO Button
"MMO Button
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