- 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.
440R-P23069
This safety relay includes two normally open (N.O.) safety outputs and one normally closed (N.C.) auxiliary output contact for enhanced functionality. Mounting is facilitated on a 35 mm DIN rail, with
In Stock Ships Today
440R-S07140
Designed for reliability, this safety relay includes an output contact configuration of 2 normally-open (N.O.) contacts and 1 normally-closed (N.C.) contact. The relay also offers 1 N.C and 2 N.O auxi
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440R-S35014
This safety relay features LED indicators for visual status feedback. It functions effectively within a wide temperature range from 0 °C to 40 °C and can handle relative humidity levels up to 80% with
Available
440R-W23218
This input module is equipped with two PNP solid-state auxiliary outputs for effective interfacing. It supports removable terminal blocks and is designed for DIN-rail mounting. The device has a minima
In Stock Ships Today
440R-W23221
This safety relay module is designed to provide immediate output in critical situations. With three normally open relays and one normally closed auxiliary output, it meets various safety needs. The un
In Stock Ships Today
440R-ZBE820AZ1
This module supports a dual channel input configuration and operates on a reset mode that is automatic. Users can connect it to either 24 volts AC/DC or 110V AC power supplies. Maximum output per cont
In Stock Ships Today
440S-S471159
This switch lock is suitable for both panel and machine mounting, offering mechanical contact type functionality. It provides an ingress protection rating of IP20 and is constructed from durable metal
Available
440S-S560010
This safety switch is engineered for operation with electrical ratings between 230 and 550 volts. It features an aluminum case and supports metric cable entry. With an IP66 rating, it resists dust and
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440T-MDALE10ABAC
This component provides IP54-rated protection against dust and water splashes, making it suitable for diverse environments. The design incorporates a release lever and is panel or surface mountable. I
Available
440T-MRKSE110A
Designed with 4 poles, the 440T-MRKSE110A switch supports a contacts configuration of 2 normally open (N.O.) and 2 normally closed (N.C.) contacts. The isolation current rating stands at 100 A, ensuri
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