Pentair Pool Products PB4RO-75, User Manual

Page: 15 / 22

TROUBLESHOOTING
Leaks on Supply Adapter Connection
1. Turn off water supply valve and turn on drinking water
faucet to release pressure in system.
2. Loosen leaking threaded fitting on supply adapter or
pull out leaking tubing by pressing collar surrounding
tubing while pulling the tubing with your other hand.
3. Inspect to see if plastic tubing is scratched and supply
adapter was properly attached.
4. If tubing is scratched, cut off 1/2" to 5/8" and reinstall.
Leaks on Faucet/Tubing Connection
1. Turn off water supply valve and turn on drinking water
faucet to release pressure.
2. Unscrew tubing nut at bottom of faucet. Inspect the tubing.
The insert, plastic ring and tubing should not be damaged.
3. Check if insert is in place and tubing is cut squarely and
not scratched, cut tubing if necessary to get square smooth
end.
4. If the tubing is smooth and square, reconnect tubing by
inserting into faucet and tightening nut. The plastic ring
should be held tight to the faucet system when the nut is
tight.
5. Turn on water supply valve, then close faucet and check for
leaks.
NOTE: If leaks persist, or if there are other leaks on
system, turn off water supply and call Technical
Support 1-800-279-9404.
Leaks Between Cartridge and Filter Housing
1. Turn off cold water supply to system at saddle valve. Close
tank valve. Open drinking water faucet to relieve water
pressure.
2. Remove the cartridge, inspecting it for damage. Inspect
O-rings to make sure they are seated and clean.
3. Insert and twist the cartridge back into the filter housing.
4. Turn on water supply at saddle valve. Open tank valve.
Close drinking water faucet after water begins to flow. If
leaks persist, call Technical Support.
Leak Between Tank Valve and Storage Tank
1. Turn off water supply to system at the saddle valve. Open
faucet to drain storage tank. Let faucet run for 3–5 minutes
until it drips.
2. Remove green tubing from tank valve by pressing the
collar around the fitting while pulling the tubing with your
other hand.
3. Unscrew the tank valve from the storage tank.
4. Place three wraps of Teflon ® tape on the threads of the
storage tank.
5. Thread the tank valve onto the top of the tank opening
by turning it clockwise until snug.
6. Cut off 1" of tubing. Tubing should be cut squarely. Internal
and external burrs should be removed. Place a mark on
tubing 3/4" from end of tubing.
7. Wet the tubing and insert until the mark is flush with the
quick-connect fitting.
8. Turn water supply on at the saddle valve and close drinking
water faucet.
9. Allow system to pressurize for several hours and check for
leaks.
10. Check for leaks after tank is fully pressurized (1–3 hours). If
leak persists, call Technical Support .
Leaks at Quick-Connect Fittings
CAUTION
The 1/4" red tubing connected to the top of the
fourth cartridge has a flow restrictor installed.
The system will not operate correctly if the
restrictor is removed.
1. Close tank valve, close saddle valve, and open drinking
water faucet.
2. Press collar around the quick-connect fitting while
pulling the tubing with your other hand.
3. Cut off 1" of tubing. Tubing should be cut squarely. Internal
and external burs should be removed. Place a mark on
tubing 5/8" from end on 1/4" tubing or 3/4" from end on 3/8"
tubing.
4. Wet the end and insert tubing until the mark is flush with the
quick-connect fitting.
5. Open the saddle valve until it comes to a stop. Open the
tank valve and close drinking water faucet. If leaks persist,
call Technical Support.
Leaks from Faucet
1. Check to make sure white tubing leading from the drinking
water faucet to the drain is as straight as possible (it is
usually necessary to cut this line during installation). Any
kinks or sags in this drain line will impede the flow of
water to the drain.
2. Check to make sure the drain clamp and the drain hole are
properly aligned, refer to Figure 7 on page 7).
1. Check to make sure there is no foreign matter clogging the
drain line or at the drain clamp hole. If leaks persist, call
Technical Support.
No Flow or Slow Flow from the Brine (Reject) Line (Less
than 6 fl. oz. or 180 milliliters per minute)
NOTE: Before checking brine (or reject) flow, make sure
the unit is producing water by turning the valve on
the storage tank off and opening the drinking water
faucet. Water should drip from faucet.
1. Replace the pre-filter cartridge according to the Changing
the pre-filter cartridge instructions on page 10 and recheck
the brine (or reject) flow rate.
2. If the pre-filter cartridge is not at fault, the brine (or reject)
flow controller could be clogged. Call Technical Support.
High TDS in Product Water
1. If high TDS (Total Dissolved Solids) is detected in the
product water, the RO Cartridge may need to be replaced
or the reject flow control tubing may be clogged. If this is a
new installation, call Technical Support.
2. Otherwise, draw 1 gallon of water from the unit. After
10 minutes, then run water from the faucet and test the
water again.
3. Determine when you last changed the RO Filter
Cartridge and call Technical Support.
Model PB4RO-75 Undersink Reverse Osmosis System JA12 • 11