- 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-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
In Stock Ships Today
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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440G-LZS21STRH
This device operates at a nominal supply voltage of 24 volts DC and employs standard actuator coding. It can connect via an 8-pin quick disconnect connector. The unit provides a mechanical lifespan of
In Stock Ships Today
440G-MT47010
This switch includes two auxiliary contacts (normally open) and two safety contacts (normally closed). The conduit entry is M20, which provides flexibility in installation. It can operate in humidity
Available
440G-MT47016
Offering one auxiliary contact and three safety contacts, the 440G-MT47016 supports 230 V AC and DC voltage ratings. The conduit entry is M20, facilitating good installation practices. It can operate
Available
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