Questions about installation? Call our customer service department at 888-542-3355 or visit brondell.com
Problem Possible Cause Solution
My TDS meter is not
reading zero
It could be normal operation or the lters
may need to be changed
Generally, RO systems lower TDS readings
by 90% as compared to tap water readings.
This is a normal working range. For example,
if your tap water TDS reading is 100, then a
normal TDS reading for the RO ltered water
is in the range of 0–10. If the TDS reading for
the RO ltered water is higher than 15% of
normal tap water, this indicates it time for a
lter change (including RO membrane).
No water, not enough
water, or low water
ow
Incoming water supply valve is turned o Turn on incoming water supply valve
Low incoming water pressure Verify pressure is above 40 psi; install a
booster pump if needed
Capacity is exhausted Allow time for the Circle to replenish the
water tank
Plumbing restriction Check connections and tubes for
obstructions
Other lter or RO membrane is clogged See Filter Replacement (page 16)
Internal valve is inoperative
See product warranty in last page of manual
and contact Brondell
Unexpected ow in
drain line Internal valve is inoperative
See product warranty in last page of manual
and contact Brondell
No drain ow
Other lters or RO membrane (3) is clogged
See Filter Replacement (page 16)
Internal regulator is inoperative
See product warranty in last page of manual
and contact Brondell
Bad tasting water
Post Carbon Block Filter is exhausted See Filter Replacement (page 16)
Newly replaced Post Carbon Block Filter
is not ushed completely
Open the provided faucet and drain the
water tank once. Flush one or two tanks
of treated water through the Post Carbon
Block Filter
Problem with the water tank bladder
See product warranty in last page of manual
and contact Brondell
Cloudy water Dissolved air in incoming water supply
Problem should clear up as the condition of
the incoming water changes. Letting water
stand will allow the dissolved air to dissipate
Leaking water from
the Circle
Tube is not fully inserted into a connec-
tion
Make sure the tube is at least 1/2-inch into
the connection
Filter is not installed correctly Ensure that all four lters are locked into
place
Unusual sounds during
Problem with one of the internal
See product warranty in last page of manual
and contact Brondell
TROUBLESHOOTING
If the Circle experiences diculties, close the T-valve to shut o the incoming
water to the Circle.
TROUBLESHOOTING
