Symptoms
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Probable Cause
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Solution
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NO WATER |
1. Tank improperly pressurized
2. Over pressurized tank
3. Water supply turned off
4. Low water pressure (40 psi min)
5. Pre-filter clogged
6. RO membrane damaged or clogged
7. Product line crimped
8. Post-filter clogged
9. Ball valve on RO tank closed
10. Check valve/restrictor valve clogged
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Set tank pressure at 5-7 psi when empty
Check RO storage tank optimum pressure 5-7 psi when empty
Call for assistance – may require pressure pump
Turn water supply on
Replace pre-filter
Replace membrane
Remove crimp in line
Remove post-filter
Open RO tank ball valve
Replace check valve/restrictor
|
SLOW FLOW THROUGH FAUCET |
1. Pre-filter clogged
2. Post-filter clogged
3. Low air pressure in RO tank
4. Low incoming water pressure (min 40 psi)
5. Fouled RO membrane
6. System, filters, membrane new
|
Replace pre-filter
Replace post-filter
Raise pressure in RO storage tank to 5-7 psi
Replace RO membrane
Allow 4-6 hours for system to fill
Call for assistance
|
LEAKING MEMBRANE HOUSING |
1. Threaded end cap leaking
2. Cap or body of housing leaks
|
Lubricate o-ring with Dow 111 silicone sealant and retighten if leak continues replace with new lubricated o-ring.
Check for any cracks in membrane housing and/or housing cap – if cracked or damaged replace both cap and housing
|
LEAKING PRE or POST FILTER HOUSING |
1. O-ring not seated properly or filter housing cap not screwed on tightly
2. Housing damaged
|
Is o-ring in groove. Check for damaged if found replace o-ring. If dirty clean, lubricate Dow 111 silicone sealant - retighten lid. Hand tighten only
If any detectable damage or cracks replace housing and lid
|
LEAKING FAUCET |
1. Fitting Leaks
2. Leak at base of brass stem
3. Spigot drips
|
Tighten fitting – make sure tubing is pushed into fitting /base of faucet stem
Replace faucet
May require installation of faucet repair kit
|
BAD TASTE or ODOR |
1. Defective unit
2. Bad membrane
3. Exhausted filter (s)
4. Not enough water used
5. System needs sanitizing
|
Replace
Replace – If TDS rejection is below 80%
Replace
Drain system – do not allow water to remain unused more than 5 days
Sanitize system
|
CLOUDY ICE CUBES OR MILKY COLORED WATER |
1. Bad Membrane
2. Water supply
3. System or filters are new
|
Call ESP for information on TDS testing
High oxygen content –Tiny bubbles – will go away with use
Air in lines – will go away with use
|
NOISEY DRAIN OR FAUCET |
1. Air gap faucet
2. Drain tube
|
A little noise is common with air gap faucets. Check your owners manual to be sure air gap is installed in proper location
Air in systems may take up to two weeks to purge air from system under normal use.
Check drain line from faucet runs down hill to drain saddle clamp. Loops, bends, dips or kinks can cause noise.
|
LEAKING FITTING |
1. Fitting damaged or cracked
2. Tubing not pushed securely into fitting or threads not properly installed
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Replace fitting
Check tubing installation & thread installation.
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SYSTEM IS CONTINUALLY RUNNING |
1. Automatic shut off valve not working
2. Low incoming water pressure
3. Low RO storage tank air pressure
4. Damaged or ruptured RO storage tank bladder.
5. Flow restrictor in drain line worn out.
6. Membrane incorrectly installed
|
Replace automatic shut off valve – be mindful of where the four lines are removed and reinstalled.
Increase water pressure – minimum required 40 psi – call ESP for assistance
Check air pressure in RO Storage tank – optimum 5-7 psi when empty
Replace RO storage tank
Replace the flow restrictor that matches membrane capacity
Check membrane installation instructions
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ICE MAKER NOT WORKING |
1. Shut off valve to ice maker not open.
2. Ice maker in handle in refrigerator in off position
3. No water in R.O unit storage tank
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Open shut of valve
Place in on position
Check RO unit
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NO WATER DISPENSED FROM REFRIGERATOR DOOR |
1. Reservoir in refrigerator is not full
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Hold down refrigerator water dispensing handle for 2-3 minutes to draw water through system. If no water is produced check RO unit for water flow.
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