- 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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+1 (919) 205-4392
Allen Bradley PLC 3 Repair
We offer extensive repairs for your PLC 3. We keep many spare parts in stock so that we can repair your PLC 3 as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your PLC 3 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.
Learn more
Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your PLC 3 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 PLC 3 Repairs
Browse our catalog of repairable PLC 3 parts to get a quote.
1770-M11
The Allen Bradley 1770-M11 Processor Mass Storage System comes with 120 to 240 Volts AC and 1.5 Amps of maximum operating current. It has a 22.5 Megabyte Winchester Disk Drive, a hard shell micro flop
Available
1771-CH
This PLC chassis supports a backplane current of 1.2 A at 5 VDC and weighs 1.83 lbs. It manages an output current of up to 2 A per point, ensuring reliable performance. Additionally, the 1771-CH offer
In Stock Ships Today
1775-54AA
The 1775-54AA interface module is designed to function in indoor settings, maintaining performance between 32°F and 104°F for operation, and can be stored at temperatures up to 122°F. The module is ra
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1775-54AB
This interface module is designed for panel mounting and supports a 3-phase rated supply. The unit functions within a permissible voltage range of 97 to 264 Volts AC and can tolerate ambient temperatu
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1775-54BA
The 1775-54BA module allows for panel and 19-inch rack mounting. It operates within a power supply requirement of 115 or 230V AC, accepting a range of input voltages. This module can function effectiv
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1775-54BB
This I/O module operates effectively within a temperature range of 0 to 60 degrees Celsius. For storage, it can withstand temperatures from -40 to 85 degrees Celsius. Humidity tolerance is 5 to 95% fo
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1775-A1
This chassis rack features six module slots and requires 1.8 Amperes at 5 VDC for backplane current. It is also capable of supporting a frequency input between 50 and 60 Hertz. Safety is ensured throu
Available
1775-A2
The 1775-A2 is a robust expansion chassis featuring a 5 A current draw at 5 VDC on its backplane and 80 mA at ±15V DC. This chassis operates within a temperature range of 0 to 60°C and has an extensiv
Available
1775-A3
This processor chassis features a 1775 backplane and is designed for two different input currents: 3.0 A at 115 VAC and 1.5 A at 230 VAC. It supports 50/60 Hz input frequency and has a panel mount ori
Available
1775-AC
This expansion chassis is designed to operate within a humidity range of 5% to 95% and is suitable for environments from 0 to 60°C. It accepts a 5 V input voltage and supports a backplane current of 5
Available
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