Watts R12-1200-1 - Manual (Page 13)

RO SYSTEM TROUBLE SHOOTING
PROBLEM REMEDY
General
High Product Water TDS
Membrane frozen, high temp, or backpressure. Replace membrane.
Membrane attack by chlorine Carbon pre-filter may be exhausted. Replace filter and membrane.
Product seal on end cap. Determine if seal or o-ring is bad. Replace as needed.
No Product Water or Not Enough Product Water
Feed water shut off. Turn on feed water.
Low feed pressure. Feed pressure must be at least 10 psi. Consider booster pump.
Pre-filter cartridge clogged. Replace pre-filter cartridge.
Membrane fouled. Determine and correct cause; replace or clean membrane.
Product check valve stuck. Clean or replace check valve.
Low pump discharge pressure
Low feed water temperature Adjust reject valve or replace pump
Increase membrane feed pressure or heat the feed water.
IV. REPLACEMENT PARTS LIST
A list of common replacement parts is provided below. Contact your dealer for replacement
parts assistance.
Part Number Description
S9550-D/T Pre filter housing 10"
R9677-SV2514.1 RO membrane pressure vessel 2.5” x 14" SS
R9677-SV2521.1 RO membrane pressure vessel 2.5” x 21" SS
R9677-SV2540.1 RO membrane pressure vessel 2.5” x 40" SS
R2451 Pressure gauge, 2", 0-100 psi, dry, bottom mount
R2456 Pressure gauge, 2", 0-100 psi, dry, back mount
R2461 Pressure gauge, 2 1/2", 0-400 psi, LF
R5126 Flow meter 0.1 – 1.0 gpm
R5129 Flow meter 0.2 – 2.0 gpm
R9852C Auto / off pressure switch
R2200 Motor 0.5 HP single phase 120 volt
R2101-140
Pump 140 GPH carbonator with relief valve
R23-1070 Low pressure controller
R2316-P88G Low pressure switch, ¼” MPT, 3 – 40 psi
R2530 Reject & recycle brass needle valve
R2402 Inlet solenoid valve, 1/2”, 120 volt coil
R9612-OSM 2.5” x 14” RO membrane
R9614-OSM 2.5” x 21” RO membrane
R9616-OSM 2.5” x 40” RO membrane
S1025AB Prefilter cartridge, 10”, 5 micron
R9812-4SS Product check valve, SS