Watts PWRO4ZRO - Manual (Page 10)

10
ProbleM Cause solution
1. Low/slow production Excessive air pressure in tank Relieve pressure at schrader valve on tank (set to 7psi with
the tank empty)
Pump not operating Wiring connection broken (plug 110 AC wall, plug back in at
wall and/or reconnect the 24 VAC wire harness connectors)
Replace pump if needed
Fouled membrane Replace membrane
Plugged pre-filters Replace filters
Crimped tubing Check tubes to make sure they are not kinked
Angle stop or water line valve not fully opened Ensure valves are opened by turning valve handle counter-
clockwise until it stops
2. Milky colored water Air in the system Air in the system is a normal occurrence with initial start
up of the RO system. This milky look will disappear during
normal use within 1-2 weeks. If condition reoccurs after filter
changes, drain tank 1 to 2 times.
3. Faucet Dripping Needs adjustment see page 12
4. Pump short cycles Ball valve on tank closed Open the ball valve on the top of the tank
Blue tube blocked between the tank and RO system Faulty
pressure switch
Remove kinked/damaged section and replace if necessary
Call for technical support
5. Bowl leaks at the top after changing the filters Damaged/Dry O-ring Lubricate with water soluble lubricant or replace O-ring as
necessary (Do not use Vaseline® or other petroleum based
lubricants)
6. Pump constantly running Electrical fault Faucet left on Call for technical support. Close faucet and let tank fill for 2
to 3 hours.
Plugged pre-filters Replace filters
Troubleshooting