Limited Warranty; Troubleshooting - Stern Engineering EXTREME LF Serie Installations- Und Wartungsanleitung

lImITED waRRaNTy

Y. stern Engineering Ltd. warrants that its electronic products will be free of defects in
material and workmanship during normal use for two years from the date the product is
purchased.
If a defect is found in normal use, Y. stern Engineering Ltd. will, at its discretion, repair,
provide a replacement part or product, or make appropriate adjustments. Damage
caused by accident, misuse, or abuse is not covered by this warranty. Improper care
and cleaning will void the warranty. Proof of purchase (original sales receipt) must be
provided to stern Engineering Ltd. with all warranty claims.
stern Engineering Ltd is not responsible for labor charges, installation, or other
incidental or consequential costs other than those noted above. In no event shall the
liability of stern Engineering Ltd. exceed the purchase price of the product.
If you believe that you have a warranty claim, contact your stern Distributor, Dealer or
Plumbing Contractor. Please be sure to provide all pertinent information regarding your
claim, including a complete description of the problem, the product, model number,
the date the product was purchased, from whom the product was purchased and the
installation date. Also include your original invoice.
Y. sTERN ENgINEERINg AND/OR sELLER DIsCLAIm ANY LIABILITY FOR sPECIAL,
INCIDENTAL OR CONsEQUENTIAL DAmAgEs. This warranty excludes product damage
due to installation error, incorrect maintenance, wear and tear, battery, product
abuse, or product misuse, whether performed by a contractor, service company, or the
consumer. This warranty does not cover product damage caused by the following:
- Incorrect installation.
- inversions of supply pipes.
- Pressures or temperatures exceeding recommended limits.
- Improper manipulation, tampering, bad or lapsed maintenance.
- Foreign bodies, dirt or scale introduced by the water supply or soap tank.
- Use of the soap outside of viscosity specifications.
- Alteration of the original soap/foam dispenser components (including pipes).
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TRoublEshooTINg

PRoblEm INDIcaToR causE
No water
1. sensor flashes
coming out
continuously
of the faucet:
when user's
Low battery.
hands are within
the sensor's
range.
2. LED in the
1. Range is too short.
sensor does not
flash once when 2. Range is too long.
user's hands
3. Battery is completely used up
are within the
sensor's range.
4. Unit is in "security mode"*
5. sensor is picking up reflections from the
washbasin or another object.
3. LED in the
sensor flashes 1. Connectors between the electronic unit and
once when solenoid are disconnected.
user's hands
are within the
2. The water supply pressure is higher than
sensor's range.
8 bar.
3. The water supply pressure is under 8 bars
and yet the pressure in the faucet's body is
higher. This situation could be caused by a
sudden increase in the water supply pressure
that the back check prevents from dropping,
even after water supply pressure drops under
8 bars.
Water flow 1. sensor flashes 1. Debris or scale in solenoid
from spout once when
does not user's hands 2. Connectors between the electronic unit and
the Dual power input box are disconnected or
stop: are within the
not connected properly
sensor's range.
2. LED in the
1. sensor is dirty or covered.**
sensor does not
flash once when
user's hands
2. sensor is picking up reflections from the
are within the
washbasin or another object.
sensor's range.
Water flow Filter or aerator is clogged or the solenoid
diminished is dirty.
* "security mode": If the sensor is covered for more than 90 sec. the faucet will automatically shut off water flow.
To return to normal operation remove any blockage.
** In this case, the water flow will stop anyway after 90 seconds because of the security time.
soluTIoN
Replace battery
Increase the range
Decrease the range
The battery must be replaced.
Eliminate cause of reflection.
Connect the electronic unit
connectors to the solenoid.
solenoid is located inside the
body.
Reduce the supply water
pressure.
shut off water supply and
unscrew one of the flexible
pipes in order to reduce the
pressure that blocks the
product.
Clean or replace the solenoid.
Connect the connectors
properly. Refer to page 5.
Clean or eliminate case of
interference.
Decrease the range or eliminate
cause of reflection.
Remove, clean, re-install
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