Hydrotech 2510 AIO SXT Chemical Free Iron Filter Operation Manual - Manual (Page 15)

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Section 7: Maintenance & Troubleshooting
The 2510AIO SXT Iron Filter requires annual maintenance. Please contact your dealer for maintenance kits (Part #92359).
PROBLEM CAUSE CORRECTION
1. Unit goes does not
go through air draw
sequence
A. Electrical service to unit is
interrupted
B. Power failure
C. Timer is defective
A. i) Check supply is operating (Check fuse, plug, etc.)
ii) Check that supply cut off when light is switched
off or similar
B. Reset time of day
C. Check that dial showing days moves from day today.
If it doesn’t, replace timer
2. Unit doesn’t draw air
in refill cycle
A. Line to drain is kinked
B. Water pressure to unit is too low
C. Drain flow control is blocked
D. Injectors or screen is plugged
E. Internal leak in control
A. Straighten
B. i) Check pressure. It must be above 20psi at all
times.
ii) If below, increase pressure
C. Check and clean if necessary
D. Check and clean or replace as needed
E. Check piston and seals and spacers. Replace if
needed.
3. Water flows to drain
continuously
A. Timer motor stopped or jammed
B. Foreign material jammed inside
control
C. Internal leak
A. Replace if necessary
B. Remove piston and check
C. Inspect piston and seals and spacers. Replace if
necessary.
4. Water is clear when
drawn, turns red
upon standing (stain
producing)
A. Insufficient air drawn by valve
B. Bypass open or leaking
C. Filter bed backwashed at improper
levels
D. Presence of manganese or tannins
A. Check valve at air draw time
B. Close bypass valve and/or repair as necessary
C. Refer to backwash frequency chart in operation
manual to ensure unit is set correctly. Do not increase
the backwash frequency unless required to based
in the chart, since the media needs to be somewhat
iron-fouled for best performance (in more severe iron-
fouling cases, filter bed may need chemical cleaning
- contact dealer).
D. Recheck water analysis
5. Water is red when
drawn from tap
A. Filter bed overloaded with
precipitated iron due to insufficient
backwash flow rate.
B. Filter bed backwashed at improper
intervals
A. i) Check for obstructions or kink in drain line
ii) Check for improper drain line flow controller (see
specs). Upon correction of this problem, if manually
backwashing does not clear bed of iron, filter bed
may need chemical cleaning.
B. Refer to backwash frequency chart in operation
manual to ensure unit is set correctly. Do not
increase the backwash frequency unless required
to based on the chart, since the media needs to
be somewhat iron fouled for best performance (in
more severe iron-fouling cases, filter bed may need
chemical cleaning - contact dealer).
6. Excessive pressure
loss through filter
A. Filter bed overloaded with
precipitated iron
B. Control in/outlet valve(s) not fully
open
C. Sand, silt or mud collecting in filter
media
D. Filter bed not properly “classified”
E. “Cementing” or “channelling” of filter
media
A. Refer to Section 2
B. Open valves
C. Check well for these conditions
D. Manually backwash to reclassify.
E. Prod (stir) filter bed to break up hardened layer,
backwash frequency to prevent recurrence.
7. “Milky” or “bubbly”
water (appears
to contain small
bubbles)
A. Excess gases in water (carbon
dioxide, hydrogen sulfide, methane)
A. May require cleaning or installation or air-relief
control (contact dealer).