- 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.
440C-CR30-22BBB
This safety relay features a USB programming port and supports logic control for safety applications. It includes two plug-in slots for expansion modules, allowing for versatile configurations. The un
In Stock Ships Today
440C-ENET
This module operates as an Ethernet plug-in module with multiple connectivity options, including USB and RS-232 interfaces. It is designed to mount on a DIN rail and requires a 24 VDC power supply. Th
Available
440E-A17115
This safety relay cover does not include an emergency stop feature. It operates with a reset mechanism facilitated by a blue knob. Designed to withstand extreme temperatures, it has an operational lim
In Stock Ships Today
440E-L13133
With 2 normally closed safety contacts and 2 normally open auxiliary contacts, the device allows for effective monitoring and control. It operates with a contact action of break before make, ensuring
In Stock Ships Tomorrow
440G-A27011
This actuator key operates within a wide temperature range from -25°C to 60°C during use and can be stored in temperatures as low as -25°C and as high as 75°C. With an IP67 rating, this device ensures
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440G-A27143
Designed for compatibility with the TLS-GD2 Interlock Safety Switch, the 440G-A27143 actuator operates efficiently in environments with a relative humidity ranging from 5% to 95%, non-condensing. It c
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440G-EZS21STL05H
This electromagnetic safety switch features an anodized coating on its plastic housing and is rated IP67 for protection against dust and water ingress. It supports safety functions effectively. The un
In Stock Ships Today
440G-L07257
This guard locking switch features one normally closed solenoid contact and two normally open solenoid contacts. In addition, there is one auxiliary contact and two safety contacts, reinforcing its fu
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440G-L07263
This guard locking switch includes two normally closed (N.C.) solenoid contacts and one normally open (N.O.) solenoid contact. In addition, it features one auxiliary contact and two safety contacts. T
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440G-LZS21SPLA
This unit operates at a rated voltage of 24 V DC and achieves a substantial holding force of 1300 N. The design includes two safety contacts and one auxiliary contact, with no solenoid contacts presen
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