Culligan CTM 21 - Page 62

58 Culligan® Culligan Top Mount (CTM) Water Filters
58 Cat. No. 01029343
PROBLEM OR SYMPTOM CHECK PROCEDURE CAUSE
Pilot Does Not Pressurize or
Vent Valve Ports Properly
Check Screen on Pilot Strainer Clogged Screen prevents control pres-
sure from reaching pilot valve (and sole-
noid valves if applicable).
1. Using the GBE, manually cycle the
pilot as required until the piston(s)
in question should be closed. (Refer
to Table 9 on page 60). Remove
the tubing from the inlet to the pilot
valve strainer and check for water
from the tube.
2. Manually cycle the pilot to position
#1.
If water flows out of the tubing, check
the fitting in the valve inlet port and pilot
valve strainer for an obstruction. If water
does not flow out of the control tub-
ing, check the tubing and fittings for an
obstruction.
1. Remove the external plumbing con-
nections and clamp. Remove valve
body from tank adapter. Lay the
valve body on its side. Attach an ex-
ternal air supply, hand vacuum/pres-
sure pump with gauge or water sup-
ply to the spool body pressure port.
2. While in position #1 and not in
stand by (multiple units with blocking
solenoids). Confirm the correct pis-
ton function using Table 9 on page
60.
3. Using the GBE, manually cycle the
pilot to position #2. Confirm the cor-
rect piston function using Table 9.
4. Using the GBE, manually cycle the
pilot to position #3. Confirm the cor-
rect piston function using Table 9.
5. Using the GBE, manually cycle the
pilot to position #4. Confirm the cor-
rect piston function using Table 9.
6. Using the GBE, manually cycle the
pilot to position #5. Confirm the cor-
rect piston function using Table 9.
7. Using the GBE, manually cycle the
pilot to position #1.
2 - 4. If piston function does match Ta-
ble 9:
• Coupling O-Ring(s) missing or dam-
aged
• Piston O-Ring(s) missing or dam-
aged
5 & 6. If piston function does match Ta-
ble 9:
• Coupling O-Ring(s) missing or dam-
aged
• Piston O-Ring(s) missing or dam-
aged
• Refill Piston Spring missing or dam-
aged
Leak at the Pilot Valve Check to see if the leak is at the top
clamp, valve manifold and/or outer spool
body.
Pilot spool body o-rings are missing or
damaged.
Check to see if the leak is at the drain
port on the valve manifold.
Pilot spool o-rings damaged.
Check to see if the leak is at the pilot
spool shaft and/or inner pilot spool body
Pilot spool shaft o-rings damaged.
Filter Tank Does Not Remain in
Stand By Mode or Will Not Pro-
vide Water Thru the Outlet of the
Control Valve When in Service
(Only systems using blocking
valves)
Verify operation of the motorized ball
valves of the control valve.
Motorized ball valve may not be properly
wired or water hardness scale build-up
inside motorized ball valve is causing
malfunction. (See page 19)