Troubleshooting Guide - Pentair F Serie Instrucciones De Instalación

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TDS MONITOR
(MONITORED SYSTEMS ONLY)
The GRO-350M is equipped with a TDS monitor that checks the
Total Dissolved Solids (TDS) the system is reducing from the
water. The TDS Monitor allows the user to test the quality of
the water produced by the system. Test the unit if a noticeable
change occurs in the taste of the drinking water.
The TDS Monitor will display the following colors when
pressing the test button:
Red Light (Left): Water Quality Test Required, proceed to
following steps
1. Draw 1 gallon of water from the unit to purge standing
water from the TDS monitor probes.
2. Push button to test again. If the light is still red, open the
faucet and allow water to run until the storage tank is
empty. Flow from faucet will noticeably decrease indicating
the storage tank is empty.
3. Close faucet and allow system to fill storage tank, 2-3
hours
4. Push button to test. If the light is still red, replace the
membrane cartridge.
Green Light (Right): System Operational
Red and Green Light: Verify inlet and outlet conductivity probes
dry, no water to system
No Lights: The battery needs to be changed. Replace battery
every 12 months.
NOTE: The TDS monitor is activated during initial installation
by pulling the plastic tab out from the TDS monitor.
TDS MONITOR TEST BUTTON
RED LED
GREEN LED
Replacing the Battery
1. Replace the battery every 12 months. To replace the
battery, remove the TDS Monitor Cover and remove the
battery from retainer.
2. Slide the new battery under the battery retention bracket
with the positive + side of the battery facing up towards the
battery retention bracket.
3. Install TDS Cover and press button to verify operation.
14 • F-SERIES GRO-350B/GRO-350M Installation and Operation Manual
BATTERY
REPLACEMENT

TROUBLESHOOTING GUIDE

Leaks on tank valve assembly
1. Open drinking water faucet to drain storage tank. Let
drinking water faucet run until it drips. Turn off cold water
supply.
2. Push in on white collar of tank valve fitting and pull out
tubing. Unscrew the tank valve from the storage tank.
Rewrap threads on top of the tank with plumber tape. Screw
tank valve back onto tank. Trim 1/2" from end of tubing and
reinsert 5/8" into tank valve fitting.
3. Open the cold water supply and shut off the reverse osmosis
faucet. Let the system pressurize for several hours and
check for leaks. Check again after tank is fully pressurized.
Leaks on quick-connect fittings
1. Close the cold water supply and tank valve.
2. Depress plastic collar and pull out tubing.
3. Cut off 1" of tubing and place a mark 5/8" from end of
tubing. Tubing should be cut squarely. The internal and
external burrs should be removed.
4. Push tubing 5/8" into fitting.
5. Open the cold water supply and tank valve. If leaks persist,
call Technical Support.
High TDS in Product Water
If high levels of TDS (Total Dissolved Solids) are detected in
your product water as determined by the TDS Monitor or by the
TDS test kit, the cartridge membrane may need to be replaced
or the reject flow control may be clogged. See your dealer or
plumber to check product water TDS.
Reduced production
Slow or no product water flow usually indicates a clogged
cartridge.
Gradual return of taste and odor
Gradual return of unpleasant taste and odor over a period of
time may indicate that your cartridges need to be replaced.
Sudden return of taste and odor
If shortly after complete servicing noticeable taste and odors
return, contact Technical Support.
No water pressure from the drinking water faucet
or low volume in storage tank
1. Close the cold water supply to system.
2. Lift storage tank to see if it is empty. If not, open the
drinking water faucet to empty water from tank.
NOTE: It may be necessary to pump a small amount of air into
the tank with a bicycle pump to remove all the water
from the tank.
3. When tank is empty, use a pressure gauge to check
tank pressure. An empty tank should contain 5 to 7 psi
pressure. Increase or decrease the air pressure in the tank
accordingly.
4. Open cold water supply. Let system run for 3 hours to fill
tank, then check system performance. If performance has
not improved, call Technical Support.

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Gro-350bGro-350m

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