HS / HL Valves & Systems Service Manual
Hankscraft Runxin, LLC 300 Wengel Drive 608.524.9465 hrh2o.com [email protected]
55
Filter Systems
Problem
Cause
Correction
1.
Filter Fails to Backwash
a.
Electrical service to unit has
been interrupted.
b.
Timer is defective.
c.
Power failure.
a.
Assure permanent electrical
service (check fuse, plug, pull
chain or switch).
b.
Replace timer.
c.
Reset time of day.
2.
Filter Bleeds Iron
a.
Bypass valve is open.
b.
Excessive water usage.
c.
Hot water tank rusty.
d.
Leak at distributor tube.
e.
Fouled filter media bed.
f.
Inadequate backwash flow
rate.
a.
Close bypass valve.
b.
Increase days between
regenerations (see timer
instructions), make sure that
there is not a leaking valve in
the toilet or sinks.
c.
Flush out the hot water tank.
d.
Verify distributor tube is not
cracked
e.
Check O-rings and tube pilot.
f.
Replace bed.
g.
Make sure filter has correct
DLFC. Be sure flow control is
not clogged or drain line
restricted. Be sure water
pressure has not dropped.
3.Loss of Water Pressure
a.
Iron or turbidity build-up in
water filter.
b.
Inlet plugged due to foreign
material broken loose from
pipes.
a.
Reduce days between
backwashing so filter
backwashes more often
b.
Make sure filter is sized large
enough to handle water usage.
c.
Remove piston and clean
control.
3.
Loss of Filter Media
Through the Drain Line
a.
Broken or missing upper or
lower basket.
a.
Replace install or replace
basket.
4.
Drain Flows
Continuously
a.
Foreign material in control.
b.
Internal control leak.
c.
Control valve jammed in rinse
or backwash.
a.
Remove piston assembly and
inspect bore, remove foreign
material and check control in
various cycle positions.
b.
Replace seals and/or piston
assembly.
c.
Replace piston, seals and
spacers (and drive motor if
necessary).
