York Chiller I/O Board 031-01743-002 Rev E
The York 031-01743-002 is an input/output (I/O) board fitted inside the control centre of York centrifugal chillers. It sits between the sensors and field devices on one side and the main control module on the other: it receives sensor and safety switch signals, and issues output signals to actuators and connected components. When it fails, the controller loses part of its visibility into the machine or part of its control over it, producing faults that appear spread across several components when the source is a single board.
Three things matter before you order. The revision is part of the specification, not a formality. Revisions of this board are not all identical, and fitting a mismatched revision can cause compatibility problems. Confirm yours is Rev E. There is a near-identical part number, 031-01743-001, one digit apart, a different board. Read the full number. And the surplus market is full of refurbished units sold on short warranties; what we supply is new and genuine.
Cool.sa holds this board as a new genuine OEM part, stocked inside Saudi Arabia alongside our full range of chiller spare parts, with a VAT invoice and delivery to project sites across the Kingdom.
Key Features
- Input/output (I/O) board linking sensors and field devices to the main control module
- Revision E: matched to boards built at this revision specifically
- New genuine OEM: not refurbished, not used, not surplus
- Panel-mount design: for installation inside the chiller control centre
- Handles sensor signals: safety switch inputs and actuator outputs on a single path
- Listed in approved renewal parts: for York YD centrifugal chillers
Benefits of Using This Product
A failed I/O board is one of the hardest faults to diagnose because it doesn’t present as a single fault. A sensor reading nonsense, an actuator that won’t respond, a safety switch reading open when it’s closed, three symptoms in three places, one board behind them. Teams replace healthy sensors and re-run good wiring before anyone suspects the signal path itself.
Replacing the board restores the whole path at once. Using a new genuine part at the correct revision also means you aren’t introducing a compatibility variable while trying to resolve an existing fault, which is exactly what happens when a refurbished or mismatched-revision board goes in.
Technical Specifications
| Specification | Value |
| Part number | 031-01743-002 |
| Revision | Rev E |
| Board type | Input/output (I/O) board |
| Application | Chiller control centre – panel mount |
| Equipment family | York centrifugal chillers (YD and equivalents) |
| Near-identical part | 031-01743-001 – a different board, not a substitute |
| Condition | New genuine OEM – not refurbished |
| Manufacturer | York / Johnson Controls |
Why Buy Your York 031-01743-002 From Cool.sa
- New genuine OEM, not refurbished. This board circulates widely on the surplus market in refurbished condition on short warranties. Ours is new, in original packaging with original marking.
- Revision confirmation before you order. Send a photo and we’ll confirm the number and revision match in writing, a service no overseas supplier offers.
- Stock inside Saudi Arabia while this part sits on backorder at major international distributors.
- VAT invoicing for corporate, government and private-sector procurement.
- Delivery to project sites: Riyadh, Jeddah, Dammam, Khobar, Jubail, Yanbu, Ras Al Khair.
- Support in Arabic and English from a team that knows York chiller control centres.
- Clearly published warranty and returns policy on electronic components.
- Companion control parts from the same stock: browse chiller control boards.
- GCC export quoting: for the UAE, Qatar, Kuwait, Bahrain and Oman.
Frequently Asked Questions
Q1. Is this part genuine and new?
Yes. This is a new, genuine OEM part. It is not refurbished, used, or surplus stock. It is supplied with original packaging and part marking, with source documentation available on request.
Q2. Why does the Rev E revision matter?
Different revisions of this board are not necessarily identical. Installing an incompatible revision can cause compatibility problems even when the base part number matches. Check the revision marked on your existing board and send us a photo before ordering.
Q3. What’s the difference between 031-01743-002 and 031-01743-001?
They are two different board part numbers and are not interchangeable. Although they differ by only one digit at the end, you should read the complete part number from your existing board before ordering.
Q4. Which chillers use this board?
This board appears in approved renewal parts listings for York YD centrifugal chillers. Send us a photo of your chiller nameplate, and we’ll confirm compatibility with your specific unit before you order.
Q5. How do I know if the problem is the board and not the sensor?
If multiple channels begin behaving abnormally at the same time, the board is a strong possible cause. If only one channel has a fault, check the corresponding sensor and its wiring first before replacing the board.
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