Service And Repair - Culligan CTM 21 Installation, Operation, And Service Instructions With Parts Lists

Service and Repair

Analyze the System
Analyzing the problem involves three basic steps:
1. Check the system in all cycle positions.
2. Compare the data to normal operating data.
3. Determine which component may cause the problem (troubleshooting).
4. If steps 1-3 did not reveal the problem, initiate a regeneration cycle and manually cycle the valve to backwash
(#2 position). Allow the unit to complete the backwash cycle and observe how the system reacts.
Although it may be possible to solve a specific problem simply by changing a component, analyzing the entire system can
reveal additional problems which would otherwise require extra service calls. Changing parts is not the same as service.
Check the System
The following tools are needed to collect data:
• Hardness, iron and chlorine test kits
• Thermometer
• Pressure gauge, 0-120 psi
• Vacuum guage, 0-30" Hg
• 5-gallon bucket and watch
• Calculator
The customer can provide most data. By collecting data prior to a service call, a first guess about the cause of the prob-
lem can be made and the need for any special parts can be determined. If the problem is as simple as lack of salt in the
brine tank, a service call may not be needed at all. Data can assist the troubleshooting process; see the GBE Program-
ming for Commercial Softeners and Filters (except for HFxN) Manual (P/N 01027295) on how to access the mini data
report.
NOTE Refer to GBE Programming for Commercial Softeners and Filters (except for HFxN) Manual (P/N
01027295) for programming information. This manual can be obtained from your local dealer, CPort
(www.cport.culligan.com) under the
Procedure for Depressurizing the CTM System for Service
Complete shut down procedure is as follows:
1. Make certain that the lines you shut off are for the system you are performing service on.
a. Open by-pass valve if one is available.
b. Close the inlet isolation valve.
c. Close the outlet isolation valve.
d. Close the separate source isolation valve if one is available.
e. Any external source of pressure to the pilot valve.
2. Manually cycle the pilot valve to backwash position #2 (Main Menu > DIAGNOSTICS > MANUAL CYCLING).
See the GBE Programming for Commercial Softeners and Filters (except HFxN) Manual (01027295) for more
information.
3. Allow water to flow to the drain until this system is no longer under pressure.
4. Disconnect electrical connection to the controller.
5. Proceed with servicing the CTM System.
We suggest the use of "a mild cleaning solvent". We suggest the following brands or their equivalents:
Cleaning Solvent: Simple Green --- water soluble for removing corrosion and dirt.
Dow Corning #111, silicone grease, must be used in order to maintain the unit's NSF certifications.
42 Culligan® Culligan Top Mount (CTM) Water Filters
Technical Service Tab or on the iPad Service Tech App.
42 Cat. No. 01029343