Troubleshooting (Aio) - Pentair FLECK 2510 Service Manual

TROUBLESHOOTING (AIO)

Problem
1. Unit does not go through air draw
cycle
2. Unit does not draw air
3. Water flows continuously to drain
4. Water is clear from tap, turns red
upon standing
5. Water is red when drawn from
tap
6. Excessive pressure loss through
filter
7. Milky or bubbly water.
8. Control cycles continuously.
9. Drain flows continuously.
Cause
A. Electrical service to unit is
interrupted.
B. Power failure
C. Timer is defective
A. Drain line is kinked
B. Water pressure to unit too low
C. Drain line flow control blocked
D. Injectors or screen plugged
E. Internal leak in control
A. Timer motor stopped or jammed
B. Foreign material jammed inside
control
C. Internal leak
A. Insufficient air drawn by valve
B. Bypass open or leaking
C. Filter bed backwashed at improper
frequency
A. Filter bed overloaded with
precipitated iron due to insufficient
backwash flow rate.
B. Filter bed backwashed at improper
frequency
A. Filter bed overloaded with
precipitated iron.
B. Control in/outlet valves 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. Excess gasses in water.
A. Misadjusted, broken, or shorted
switch.
A. Valve is not programming correctly.
B. Foreign material in control.
C. Internal control leak.
Correction
A. Inspect power supply and correct if
necessary.
Reset time of day
C. Verify that dial showing days moves from
day today. If it does not move, replace timer.
A. Straighten drain line
B. Pressure must be above 20 psi at all times.
Increase pressure if necessary.
C. Inspect DLFC and clean if necessary.
D. Inspect and clean or replace as necessary.
E. Inspect piston and seals/spacers. Replace
as needed.
A. Replace if necessary.
B. Remove piston and check.
C. Inspect piston and seals/spacers. Replace
as needed.
A. Check valve at air draw time
B. Close bypass valve and/or repair as
necessary
C. Increase backwash frequency.
A. Inspect drain line for kinks or obstructions.
Verify drain line flow control is correct size
for application. If, after correction, manual
backwash does not clear bed of iron, filter bed
may need chemical washing.
B. Increase backwash frequency.
A. Inspect drain line for kinks or obstructions.
Verify drain line flow control is correct size
for application. If, after correction, manual
backwash does not clear bed of iron, filter bed
may need chemical washing.
B. Open valves
C. Inspect well for these conditions.
D. Manually backwash to reclassify.
E. Stir filter bed to break up hardened layer.
Increase backwash frequency to prevent
recurrence.
A. System may require cleaning. Some
installations will naturally produce aerated
water.
A. Determine if switch or timer is faulty and
replace it, or replace complete power head.
A. Check timer program and positioning of
control. Replace power head assembly if not
positioning properly.
B. Remove power head assembly and inspect
bore. Remove foreign material and check
control in various regeneration positions.
C. Replace seals and piston assembly.
FLECK
2510 AIO SXT Service Manual
• 17