USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 6 of 8 STAR-CLEAR PLUS CARTRIDGE FILTER ISC1750 REV C
PROBLEM SOLVING LIST
PARTS
Models C751, C7512, C900, C9002(S), C1200,
C12002(S) C1502, C17502(S), and C2002 Filters
REF
NO.
PART NO.
DESCRIPTION
NO.
REQ’D.
la
CX900G
Locking Knob
1
1b
CX1750G
Locking Knob
1
2
CX900H
0-Ring
1
3
CX900W
Washer
2
4
CX900J
E-Ring
1
5
CX900D
Guide Cone
1
6a
CX900B
Filter Head w/Directional Vent
Valve (C900)
1
6b
CX1200B
Filter Head w/Directional Vent
Valve (C1200)
1
6c
CX1750B
Filter Head w/Directional Vent
Valve (C1750)
1
7
CX900F
Filter Head 0-Ring
1
8a
CX900AA
Filter Body-1-1/2" FIP
1
8b
CX900AA2
Filter Body-2" FIP
1
9
ECX2712B1 Pressure Gauge
1
10a CX760RE
Cartridge Element (C751, C7512) 1
10b CX900RE
Cartridge Element (C900)
1
10c CX1200RE
Cartridge Element (C1200)
1
10d CX1750RE
Cartridge Element (C1750)
1
10e CX1520RE
Cartridge Element (C1502)
1
10f
CX2020RE
Cartridge Element (C2002)
1
11a CX800Z2
Tie Rod (C900)
1
11b CX1100Z2
Tie Rod (C1200)
1
11c CX1750Z2
Tie Rod (C1750)
1
12a CX800Z4
Auto Air Relief Tube (C900)
1
12b CX1100Z4
Auto Air Relief Tube (C1200)
1
12c CX1750Z4
Auto Air Relief Tube (C1750)
1
13
CX250Z14A 1/2" Drain Plug with O-Ring
1
14
CX900K
2" PVC Socket Connector
Set of 2 (Not Shown)
2
15
ECX1322A
Directional Vent Valve w/O-Ring 1
LOW WATER FLOW
SHORT FILTER CYCLES
POOL WATER WON’T CLEAR UP
REMEDY
1. Check skimmer and pump
strainer baskets for debris.
2. Check for restrictions in intake
and discharge lines.
3. Check for air leak in intake line
(indicated by bubbles returning to
pool).
4. Clean Filter Cartridges
(see Page 5)
1. Check for algae in pool and treat as
required.
2. Be sure chlorine and pH levels are
in proper range (adjust as required).
1. Check chlorine, pH and total
alkalinity levels and adjust as
required.
2. Be sure flow rate through filter is
sufficient.
3. Operate filter for longer periods.