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www.123filter.com
- Page 10 of 12 -
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
When turning on the RO faucet, only small
amount of water come out.
1. Lifting the tank to see if there is
still water inside. Heavy or light?
1. If it’s heavy, you need to recharge tank,
following recharge procedure
1b. If its light, the water either is not
going in or the system is not making
water.
Vibrating noise or very loud high pitch noise
1. From the auto shut-off valve
1. If the noise is too unbearable, shut-off,
valve should be replaced.
Drain water never shut off
1. Auto shut-off valve is worn out
2. or becoming ineffective
3. Storage tank not enough pressure
4. Water supply pressure is near 45
psi or below
5. Cold water temperature
Filters are clogged up
1. Replace auto shut-off valve
2. Follow recharging tank procedure
3. Increase feed water pressure
4. Can’t do anything about it.
5. Replace filters
Low water production
1. Storage tank problem
2. Clogged filters
3. Kinked tubing
4. Clog flow restrictor
1. Follow recharging tank procedure
2. Replace filters
3. Straighten the tubing
4. Replace flow restrictor
Note: Clogged filters: How do you know if the filters are clogged up? For the pre-filters, sediment filters and carbon filters; check the pressure
difference before and after the filters. If there is significant difference in pressure that means the filter is clogged. Turn OFF tank valve and cold water
main valve then open the RO faucet to depressurize the system, then disconnect the tubing after the bottom three pre-filters, then turn ON the cold
water main valve. If you get very strong water pressure, (as strong as water going into the system) then the bottom 3 pre-filters are not clogged. If the
water pressure is much smaller, unlike a burst of water pressure, then the bottom 3 pre-filters need to be replaced.
Note: Checking a clogged membrane uses different method. Use a water quality meter TDS meter to check the condition and performance of the RO
membrane (4th stage filter)
Note
: Clogged flow restrictor: When you disconnect the black tubing going into the saddle valve, and the RO system is in the processing of making
water (by turning on the RO faucet), there should be a small steady flow of drain water. If you do not get any drain water, the flow restrictor may be
clogged, then you need to replace a new flow restrictor ASAP, and discontinue using the system.
RECHARGING TANK PROCEDURE
PROBLEMS:
•
When you turn on the spigot you get small water pressure and water flow.
•
When you turn on the spigot, only a quick burst of water comes out of the system, then it dies down to trickles.
•
When you turn on the spigot in the morning, you only can get less than a gallon of water.
If you have above problems, you should recharge the tank. The tank should have about 7 psi of air pressure when it is completely empty. The storage
tank has a water bladder inside, and it is surrounded by compressed air, so when you turn on the spigot, the
compressed air would squeeze or
compress the water bladder to force the water out of the tank. When the tank is full the tank pressure
can reach about 35 to 50 psi depending on your
feed water pressure, but to accurately recharge the storage tank, you should empty the
tank then set the air pressure to 7 psi.
TOOLS NEEDED: An air compressor or air pump (like a bicycle tire air pump . An air pressure gauge that is able to read less than 10 psi.
Adjustable wrench or 9/11” wrench
STEPS:
1. Shut off the water supply to the RO system. Turn on the spigot to allow water to run until it stops (you can collect the water if you want)
2. Check to see if there is still water in the storage tank by lifting the tank. If the tank feels heavy, that means you need to recharge to tank,
then continue the following steps. If the tank feels light, that means you don’t need to recharge your storage tank at this time.
3. Locate the air valve on the side or on the bottom of the tank. It looks like the air valve on tires.
4. Use an air compressor or air pump to pump air into the tank. Keep the spigot on while pumping air, so that all water inside the tank can be
purged out. Don’t over charge it, just keep around 20 psi.
5. After all water is been discharged, use an air pressure gauge to check the tank pressure.
6. The tank should have 7 psi of pressure when it’s empty. Add or purge air if necessary.
7. Turn the feed water valve back on, and turn off the spigot to allow refilling of the tank. It may take couple hours to refill the storage tank.
8. Finished
NOTE: If after few days of running the system, the problem comes back, then you may need to replace a new tank.
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