How to troubleshoot a Magnetrol Switch when the pump won't start?
- JJennifer RowlandAug 2, 2025
If the pump won't start or stop, or the signal lamps fail to light, check the fuses, reset button(s), power switch, controlled equipment, and wiring.
How to troubleshoot a Magnetrol Switch when the pump won't start?
If the pump won't start or stop, or the signal lamps fail to light, check the fuses, reset button(s), power switch, controlled equipment, and wiring.
What to do if the Magnetrol C29 Switch mechanism fails to actuate?
If the Magnetrol Switch mechanism fails to actuate, there could be several reasons: 1. Binding: Loosen the magnet clamp screw and shift the magnet position, then retighten the screw. 2. Improper Installation: Ensure the control is installed within 3° of vertical. 3. Damaged Microswitch: Check the microswitch continuity with an ohmmeter and replace it immediately if damaged.
What to do if the Magnetrol C29 float is not buoyant in the liquid?
If the float in your Magnetrol Switch is not buoyant in the liquid, it may be filled with liquid or collapsed. Replace the float immediately.
Examine instrument for damage, verify contents, and record serial number for future reference.
Recommendation for installing an additional level switch for enhanced critical alarm functions.
Guidelines for piping arrangement, support, and insulation to ensure proper operation and drainage.
Instructions for correct vertical positioning and alignment of the control unit within 3 degrees.
Steps for electrical wiring, including rotating the switch housing for optimal conduit placement.
Overview of Flanged External Cage liquid level switches and their self-contained design for side mounting.
Explanation of how magnetic field interaction with a float actuates the internal switch mechanism.
Detailed description of how rising and falling liquid levels cause the switch to trip and reset.
Guidance on field adjustment of the level travel between switch actuation and reset points.
Procedure for adjusting the switch differential for low-level control applications.
Procedure for adjusting the switch differential for high-level control applications.
Detailed instructions for safely replacing the float and stem assembly, including part identification.
Diagnostic steps to identify and resolve issues with the switch mechanism's functionality and movement.
Procedure to test the level sensing components, including the float, stem, and attraction sleeve.
Guidelines for implementing a systematic preventive maintenance program for reliable operation.
Importance of maintaining the switch housing cover for protection against dust, dirt, and moisture.
Monthly inspection of switch levers, terminals, connections, and wiring for wear and tightness.
Periodic checks of the complete control unit, including switch contact and reset functionality.
Critical precautions and actions to prevent damage, malfunction, or improper adjustments.
List of certifications and compliance details for various agency and safety standards.
Detailed physical dimensions, port sizes, and actuation level data for different models.
Identification of parts and ordering information for standard flanged external cage models.
Diagram and numbered list of all components for standard flanged external cage models.
Reference guide linking switch series types and models to their respective bulletin numbers.
Specific replacement parts kits available for the Magnetrol Model C29.
Specific replacement parts kits available for Magnetrol Models D30, J30, and L30.
Specific replacement parts kits available for Magnetrol Models B60 and C60.
Identification of parts and ordering information for tandem flanged external cage models.
Diagram and numbered list of all components for tandem flanged external cage models.
Reference guide linking switch series types and models to their respective bulletin numbers.
Specific replacement parts kits available for the Magnetrol Model C29 TDM.
Specific replacement parts kits available for Models D30, J30, L30 TDM.
Specific replacement parts kits available for Models B60 TDM and C60 TDM.