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Spare Parts List
Product
Sediment Filter
(1
st
Stage)
CTO Filter
(2
nd
Stage)
UV
Lamp
Quartz
Sleeve
UV Controller
Ballast
Filter
Housing
HG210
HG10SFC
HG10CTOFC
-
-
-
HGFH10
HG220
HG20SFC
HG20CTOFC
-
-
-
HGFH20
HG210UV
HG10SFC
HG10CTOFC
HGUVL
HGUVQSS
HGBPC
HGFH10
HG220UV
HG20SFC
HG20CTOFC
HGUVL
HGUVQSS
HGBPC
HGFH20
Troubleshooting
Symptom
Possible Cause(s)
Solutions
Low water flow
Filter cartridge(s) are blocked
Replace the cartridge(s), see
Filter Cartridge
Replacement.
Cartridges should be replaced every 6-
12 months depending on water quality.
Low supply pressure
Investigate cause of low pressure at the source.
Isolation valves are restricting
flow
Check all isolation valves before and after the filter
product are fully open.
Water leak at
inlet or outlet
Plumbing connection is leaking
Remove any fittings, clean all threads thoroughly and
reseal with thread sealant tape and tighten.
Filter cap is damaged, causing a
leak
Contact Watts for a replacement if the part has been
overtightened, exposed to freezing, high pressure or
other damage.
Water leak at
filter housing
Seal is leaking due to missing,
damaged, or unlubricated O-
ring.
Unscrew the filter housing. Check that 2 sealing O-
rings are present, clean, undamaged and assembled
correctly to the filter housing. Use 100% silicone food
grade lubricant on O-rings to assist with assembly and
prevent pinching. See
Filter Cartridge Replacement.
Filter housing is damaged,
causing a leak
Replace filter housing if the part has been
overtightened, exposed to freezing, high pressure or
other damage. See
Spare Parts List.
Inconsistent or
bubbly water
flow
Trapped air in the system
Shut off water supply and release pressure in the
system by pressing the red buttons on top of the filter
housing caps. Slowly turn on the water supply and
open a fixture downstream of the product for 3
minutes to flush water through the system and remove
any air pockets.
Filters are
becoming
blocked very
quickly
High sediment from water
source
Consider adding pre-filtration before the product with
a larger nominal micron size (e.g. 20 micron) to
remove large sediment before reaching the filter.
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