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25
Problem
Cause
Correction
1. Filter bleeds taste and odor or
sediment
A. Bypass valve is open
B. Electrical service to unit has been interrupted
C. Defective or stripped media bed
D. Quality of water has worsened
E. Filter capacity too small
F. Filter not backwashing enough
G. Excessive water usage - calendar clock models
A. Close bypass valve
B. Assure permanent electrical service (check fuse, plug or switch)
C. Replace media
D. Have water sample analyzed to determine any change
E. Replace with larger unit or add another filter
F. Be sure flow control is not clogged or drain line restricted. Be sure water pressure has not
dropped and that pump has sufficient capacity
G. Increase frequency of regeneration. Make sure there are no leaks in toilets or sinks
2. Filter fails to regenerate
A. Electrical service to unit has been interrupted
B. Timer is defective
C. Power failure
D. Timer motor does not run
A. Assure permanent electrical service (check fuse, plug or switch)
B. Replace timer
C. Reset time of day
D. Replace defective motor
3. Filter regenerates every day
A. Faulty gear train
A. Check the mechanical linkage on the timer control to eliminate possible binding in the
gear train
4. Loss of water pressure
A. Iron or turbidity build-up in filter
B. Filter not regenerating often enough
C. Not enough water volume or pressure to
backwash properly
A. Clean control and treat bed with Iron Out. Increase frequency of regeneration
B. Increase frequency of regeneration
C. Correct water supply problem
5. Loss of media through drain line
A. Air in water system
B. Backwash rate too fast
A. Assure that well system has proper air eliminator control. Check for dry well condition
B. Check drain flow control for proper flow rates
6. Drain flows continuously
A. Foreign material in control
B. Timer motor stopped or jammed
A. Remove piston assembly and inspect bore. Remove foreign material and check control in
various regeneration positions
B. Replace timer motor
Injectors
Downflow Injector Configuration
Plug
85UF/DF Valve
After June 2022
85UF/DF Valve
Before June 2022
TROUBLESHOOTING GUIDE
NOTE
Before attempting any troubleshooting, be
sure to test the water. The tests should include;
1. Raw water
2. Hot treated water
3. Cold treated water.
SERVICING YOUR CONTROL VALVE
(CONTINUED)
INSPECTION & REPLACEMENT OF INJECTORS (FOR GREENSAND MODELS ONLY)
Downflow Injector Configuration
Injectors
Summary of Contents for 85DF
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