What causes excessively low or high backwash/purge rates in a Pentair AUTOTROL LOGIX 742 Control Unit?
If your Pentair Control Unit backwashes or purges at an excessively low or high rate, it could be due to an incorrect drain control being used; replace it with the correct size controller. Also, foreign matter affecting valve operation may be the cause; remove the drain control and clean the ball and seat.
Why is there no water flow display on my Pentair 760 Control Unit when water is flowing?
If your Pentair 760 Control Unit isn't displaying water flow despite water flowing, first check if the bypass valve is in the bypass position and shift it to the non-bypass position. Then, ensure the meter probe is fully inserted into the meter housing. Lastly, check for any restrictions in the meter turbine rotation due to foreign matter; remove the meter housing, free up the turbine, and flush with clean water. If the turbine doesn't spin freely, replace the meter.
What does ERR3 mean on my Pentair AUTOTROL LOGIX 742 Control Unit and how do I fix it?
If your Pentair Control Unit shows an ERR3 error, it means the camshaft rotated for more than 5 minutes trying to find the Home position. If the motor keeps rotating indefinitely, replace the following components in this order: the wire harness, the motor, the optical sensor, and finally, the controller.
What does ERR 2 mean on my Pentair AUTOTROL LOGIX 742?
If your Pentair Control Unit displays 'ERR 2', it indicates that the controller power does not match 50 or 60 Hz. Try disconnecting and reconnecting the power. If the problem persists, you may need to obtain a controller or AC transformer that is appropriate for your power frequency.
General| Type | Control Unit |
|---|---|
| Model | AUTOTROL LOGIX 742 |
| Display | LCD |
| Cycle Time | Adjustable |
| Rinse Time | Adjustable |
| Brine Draw Time | Adjustable |
| Brine Refill Time | Adjustable |
| Power Supply | 24V |
| Control Type | Electronic |
| Port Size | 1" |
| Materials | Plastic, Stainless Steel |
| Operating Pressure | 20 - 125 psi (1.4 - 8.6 bar) |
| Operating Temperature | 34 - 120°F (1 - 49°C) |
| Flow Rate | Service Flow: Up to 27 gpm (6.1 m3/h); Backwash Flow: Up to 27 gpm (6.1 m3/h) |
| Backwash Flow | Up to 27 gpm (6.1 m3/h) |
Outlines general safety precautions to avoid injury, damage, or pollution.
Specifies that only qualified personnel should perform work on the unit.
Highlights safety points related to electrical hazards and moving parts.
Covers procedures for maintaining hygiene during installation and use.
Lists detailed design specifications, ratings, flow rates, and connections.
Presents a graph showing flow rate versus pressure drop for the valve.
Illustrates and labels the various components of the valve assembly.
Describes the different cycles involved in the system's regeneration process.
Covers general, electrical, and mechanical considerations for the installation environment.
Details electrical safety, connections, and transformer requirements.
Covers mechanical aspects like lubrication, connections, and drain line setup.
Outlines site requirements and constraints for system integration.
Explains how to connect the valve to the piping system.
Covers requirements and precautions for connecting the drain line, including air gaps.
Introduces the basic programming menus and parameters.
Lists parameters, ranges, defaults, and notes for basic programming of 742-762/298 valves.
Lists parameters, ranges, defaults, and notes for basic programming of 742F-762F/293 valves.
Guides through setting up valve type, system size, time, and day of week.
Guides setting valve type, system size, time, and day of week for 293 valve type.
Introduces accessing advanced programming features.
Lists parameters for basic programming of 5-cycle softener systems.
Lists advanced programming parameters for 5-cycle softener systems.
Lists parameters for basic programming of 3-cycle filter systems.
Lists advanced programming parameters for 3-cycle filter systems.
Explains how to set and adjust cycle times for regeneration.
Details how to access and view diagnostic values and system data.
Provides instructions for resetting the controller to its default state.
Explains procedures for disinfecting water softeners.
Explains how to initiate manual regeneration, both delayed and immediate.
Outlines annual inspection procedures for 293 CV/IT models.
Provides a 5-year maintenance schedule for 293 CV/IT models.
Outlines annual inspection procedures for 298 CV/IT models.
Provides a 5-year maintenance schedule for 298 CV/IT models.
Details the steps for cleaning and maintaining various valve components.
Provides step-by-step instructions for replacing the motor.
Details the procedure for replacing the camshaft.
Details the process for replacing valve cartridges.
Lists common error codes, their causes, and solutions for the Logix controller.
Provides troubleshooting for issues related to water softening regeneration and valve operation.
Offers troubleshooting steps to isolate suspect cartridges.
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