4.1.5. PRESSURE DROPS DETECTED
EXPLANATION
GROHE Sense Guard has detected pressure drops in your water system. Depending on
your device preferences, your water may have been automatically shut off.
GROHE Sense Guard conducts several pressure tests:
• A thorough pressure test every night.
• Multiple short pressure tests during the day.
During these tests very small pressure changes can be detected, which indicate that
your water system is not tightly closed, and that a small quantity of water is leaking
from the system.
Common reasons for a detected pressure drop are:
• Dripping faucets, valves or leaking toilets
• Appliances consuming small amounts of water
• Temperature changes in pipe system, in cases such as
• Hot water pipes are not properly isolated and heat up also the cold water pipes
• Missing backflow preventer on the hot water pipe leads to pressure changes also
in the cold water pipe
• Leaking pipe
RECOMMENDATION WHAT TO DO
Check all water exit points in your house thoroughly. Leaks detected by a pressure test
can be extremely small and difficult to find. Therefore, it often takes time to detect the
cause and solve the problem.
Here are some examples how you can find possible causes:
• Check all faucets and valves in your household for drips. If you have doubts, place
a dry tissue below the faucet/valve and check later if the tissue became wet. Also
check remote faucets (e.g. in your garden) and valves below the sinks.
PRESSURE DROP
DETECTED DURING
WATER SYSTEM CHECK
MULTIPLE WATER
PRESSURE DROPS
DETECTED – WATER
SUPPLY SWITCHED OFF
MULTIPLE WATER
PRESSURE DROPS
DETECTED
• Check for leaking toilets. Check if you can hear a hissing sound or see dripping in the
toilet. You can also place some drops of food coloring in the lavatory cistern. Wait a few
minutes. If you see coloring in the bowl, you most probably have a defective float valve.
If you cannot find a dripping faucet, valve or a leaking toilet, carefully monitor your house
for water stains. If you find a sign of a water leak, contact your installer and depending
on the severity consider to turn off your water supply. If you cannot find a leak, we
recommend that you contact GROHE customer support.
4.1.6. WATER SYSTEM CHECK NOT POSSIBLE
EXPLANATION
GROHE Sense Guard conducts a pressure test every night at 3:00. If this test could not
be conducted multiple times, you will receive this notification.
Possible causes:
• You have consumed water during the test
• You have devices in your household which use water at night, such as a water softener,
a fridge with ice maker or self-cleaning functionality
RECOMMENDATION WHAT TO DO
In most cases, no action is needed. Your GROHE Sense Guard will conduct a new
pressure test during the next night.
If you have devices that consume water regularly at night, we recommend that you
change the settings of these devices, or you deactivate the water system check in
GROHE Sense Guard preferences.
WATER SYSTEM CHECK
NOT POSSIBLE
46
47
GROHE
SENSE USER GUIDE
4. GROHE SENSE GUARD WARNINGS AND HOW TO REACT
