Lochinvar & A.O. Smith 100074696 Computer Board 540
Specifications
- Type: Computer Board 540
Loyalty Program| Manufacturer Name: Lochinvar & A.O. Smith Product Number: 100074696 OEM Part Number: 100074696 Product Description: Computer Board 540 Weight:1.38lbs/625.96g |
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Step1: Turn off power to the boiler or water heater to prevent electrical shock.
Step2: Remove the access panel and disconnect all wiring from the existing computer board.
Step3: Note wire positions or take a photo for reference.
Step4: Carefully remove the old board from its mounting.
Step5: Install the computer board, aligning mounting points.
Step6: Reconnect all wires according to the original configuration.
Step7: Replace the access panel, restore power, and test the system to ensure proper operation.