- Bad communication ports
- Broken selector/key switches
- Dead batteries/Bad Battery connections
- Solid or Blinking RED OK Status Light
- Solid or Blinking RED RUN Status Light
- Solid or Blinking RED Fault Status Light
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Allen Bradley Guardmaster Safety Relays Repair
We offer extensive repairs for your Guardmaster Safety Relays. We keep many spare parts in stock so that we can repair your Guardmaster Safety Relays as efficiently and effectively as possible. Our standard repair lead time is 3-5 days. However, we can often repair your unit much faster if necessary. We can repair most issues and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your Guardmaster Safety Relays parts.
- Bad analog inputs or ouptus
- Bad digital input or outputs
- Bad relays (stuck on/off)
- Incorrect voltages on inputs or outputs
- Incorrect current on inputs or outputs
- DF1, DH-485, DH+, Profibus, Remote I/ (RIO) failures and more!
- Intermittent communication
- Solid RED/Blinkging RED communication lights
- Devicenet, Ethernet, ControlNet, RS232 ports.
- Missing CJC Jumpers
- Incorrect readings
- Failed inputs
- Dead power supplies
- Incorrect voltage
- Broken Plastic
- Poor Connections
- Bad Slots
Browse Guardmaster Safety Relays Repairs
Browse our catalog of repairable Guardmaster Safety Relays parts to get a quote.
440G-T27256
This guard locking switch employs power to lock functionality, ensuring secure operation. The switch supports a holding force of 2000 N and includes a fully flexible actuator type for versatile applic
Available
440G-T27258
This guard locking switch includes two normally closed safety contacts and one normally open contact. It utilizes an M20 conduit connection type and features a fully-flex actuator. It is constructed f
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440G-T27260
With a rated voltage of 24 V AC and DC, this guard locking switch includes two normally closed safety contacts and one normally open auxiliary contact. Rated to IP67 and IP69K, it withstands water and
Available
440G-TZS21UPLH
Allen-Bradley manufactures the 440G-TZS21UPLH Guard Locking Switch and it belongs to the Guardmaster Safety Relays series. It operates on a solenoid voltage of 24 Volts AC/DC. This switch's actuator i
In Stock Ships Today
440G-TZS21UPRH
This interlock switch is designed for use with 24 V AC/DC solenoid systems and offers a robust holding force of 2000 N (450 lbs). It includes two normally closed safety contacts and one normally open
Available
440G-TZS21UTLH
This guard lock switch features 2 PNP safety contacts along with 1 additional PNP auxiliary contact. It has a robust holding force of 2000N and utilizes an 8-pin micro (M12) connection type. Rated as
Available
440J-N21TNPM-NP
This safety enabling switch operates with a voltage of 250 VAC and 30 VDC. It incorporates manual reset capabilities and comes with additional monitoring contacts, providing useful feedback for system
In Stock Ships Today
440K-A11095
This actuator is a part of the 440 series and is compatible with interlock switch accessories. It allows for effective mounting options. It can thrive in various conditions and is designed to function
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440K-AMDS
The 440K-AMDS sliding bolt actuator is engineered to work seamlessly with TLS-GD2 guard locking switches. It provides an actuation speed of 160 mm per second and can complete one actuation cycle each
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440K-B04026
This interlock switch is rated for 10 Amperes thermal current and features two normally closed contacts along with one auxiliary normally open contact. With a high ingress protection rating of IP66, i
Available
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