Hydrotech 6700 Valve Upflow Automatic Water Softeners Operation Manual - Manual (Page 7)

Cleaning The Injector Assembly (Figure 6)
Sediment, sand and silt will restrict or clog the injector. A clean water supply and pure salt will prevent this from
happening.
The injector assembly is located on the left side of the control valve. This assembly is easy to clean.
Shut off the water supply to your water conditioner and reduce the pressure by opening a cold soft water faucet. Using a
screwdriver, remove the two screws holding the injector assembly to the control valve body. Carefully remove the
assembly and disassemble as shown in Figure 6.
The injector orifice is removed from the injector
body by carefully turning it out with a screwdriver.
Remove the injector throat the same way. Carefully
flush all parts with water. Use a mild acid such as
vinegar or Pro-Rust Out to clean the small holes in
the orifice and throat. Reassemble using the
reverse procedure.
Do not over tighten.
6
Figure 6
Trouble Shooting Guide
1. CONDITIONER DELIVERS HARD WATER
A. Bypass valve is open A. Close bypass valve
B. No salt in brine tank B. Add salt to brine tank and maintain salt level above water level
C. Injector or screen plugged C. Replace injectors and screen
D. Insufficient water flowing into brine tank D. Check brine tank fill time and clean brine line flow tank control if plugged
E. Hot water tank hardness E. Repeated flushing of the hot water tank is required
F. Leak at distributor tube F. Make sure distributor tube is not cracked. Check O ring and tube pilot
G. Internal valve leak G. Replace seals and spacers and/or piston
H. Flow meter jammed H. Remove obstruction from flow meter
I. Flow meter cable disconnected or not plugged I. Check meter cable connection to timer and meter cap into meter cap
J. Improper programming J. Re-program the control to the proper regeneration type, inlet water hardness,
capacity or flow meter size.
2. CONDITIONER FAILS TO REGENERATE
A. Electrical service to unit has been interrupted A. Assure permanent electrical service (check fuse, plug, chain or switch)
B. Timer is not operating properly B. Replace timer
C. Defective valve drive motor C. Replace drive motor
D. Improper programming D. Check programming and reset as needed
3. UNIT USES TOO MUCH SALT
A. Improper salt setting A. Check salt usage and salt setting
B. Excessive water in brine tank B. See #7
C. Improper programming C. Check programming and reset as needed
4. LOSS OF WATER PRESSURE
A. Iron build-up in line to water conditioner A. Clean line to water conditioner
B. Iron build-up in water conditioner B. Clean control and add resin cleaner to resin bed. Increase frequency
of regeneration
C. Inlet of control plugged due to foreign material C. Remove piston and clean control
broken loose from pipes by recent work done on
plumbing system