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NOTICE
• We recommend that you use only genuine Delta® replacement parts.
• DO NOT USE EXCESSIVE FORCE to close the inlet stop stem. We RECOMMEND that the flushometer be flushed while closing the inlet stop. The
noise created by the water flow or the flow into the fixture will stop when the inlet water is shut off.
Problem
No lights on sensor
No power
Excessive noise
Excessive noise
Excessive water flow
Splashing of water
rate
out of the fixture.
Flushometer does
Continuous flushing
not stop after cycle
is complete.
Flushometer will
activate with no
Inadvertent flushing
one using the
fixture.
NOTICE
If the issue persists, contact Delta Commercial Technical Service at 1-800-387-8277 (Canada).
TROUBLESHOOTING
Indicator
BT Models - Batteries not
installed correctly
BT Models - Batteries are
depleted.
BT Models - Damage or corrosion
of the battery terminals.
HW Models - Power not being
supplied to the unit.
High pressures may lead to an
increase in noise.
Damaged renewable seat.
Partially closed inlet stop.
Inlet stop may be open too much.
The Regulating Screw may require
adjustment.
Bypass slot partially or completely
obstructed.
Diaphragm/Guide Assembly
obstructed or damaged.
Solenoid not connected to
controller or damaged.
MMO button not working
correctly.
Sensor range needs to be
adjusted.
Sensor requires adjustment for
reflection of infrared signal.
DÉPANNAGE
Cause
Check that the four "AA" Alkaline batteries are positioned properly
in the battery holder. Use the +/- signs on the batteries and the +/-
signs on the battery holder for correct positioning.
Replace with four new "AA" Alkaline batteries. See
Replacement (see Figure 14)" on page 24
Check for damage or corrosion of the battery terminals in the
battery holder. Replace battery holder and batteries if necessary.
Check for power coming from the transformer. Replace if required.
Check power coming from the hardwire converter. Replace if
required.
While the TECK® Flushometer will operate up to 125 PSI, the
preferred operating range is between 35 to 65 PSI.
1. Lower the flow rate by reducing the flowing pressure upstream
of the flushometer by adjusting the screw stop. Close the stop
completely and re-open 1 turn. Then adjust the screw to stop
the noise.
2. Other options include installing a Pressure Reducing Valve
(PRV), or ball valve upstream to the flushometer.
On flushometers that have been installed for a number of years,
check the renewable seat for wear and replace if necessary.
OPEN inlet stop.
Close the stop completely and re-open 1 turn. Adjust the stop to
meet the required flush volume specification.
WARNING
ONE TURN OPEN may cause EXCESSIVE NOISE. The lowest
open setting for the inlet stop may vary depending on the
installation.
Adjust by slowly turning the regulating screw LEFT (counter-
clockwise) (except on models that have a fixed volume). See
Volume Adjustment" on page 10
1. Clean bypass slot.
2. Replace cap/solenoid & regulating screw assembly if required.
See
"Cap/Solenoid & Regulating Screw Assembly Maintenance (see
Figure 17)" on page 27
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly if required.
See
"Diaphragm/Guide Assembly and Seat Maintenance (see Figure
18)" on page 28
1. Check for damage and alignment of the diaphragm.
2. Replace Diaphragm/Guide Assembly if required.
See
"Diaphragm/Guide Assembly and Seat Maintenance (see Figure
18)" on page 28
1. Clean MMO button assembly.
2. Replace MMO button assembly if required.
See
"MMO Button Maintenance (see Figure 19)" on page 29
instructions.
Verify sensing range of the flushometer and adjust if required.
See section
instructions.
See
"Inadvertent Flushing (see Figure 16)" on page 26
instruction on sensor angle adjustment.
Page 20 - 31
216039, Rev. A
Solution
for instructions.
Operation of flushometer with inlet stop BELOW
for detail on adjusting.
for instructions.
for instructions.
for instructions.
"Setup Mode Adjustments" on page 11
"Battery
"Flush
for
for
for
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