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Cut off the 24VAC control power supply before maintenance.
Take photos to record the wiring sequence of all terminals.
Remove the fixing screws, carefully take out the PCB board, and avoid forcibly pulling the wiring harness.
Install the new SCPM board and set the DIP address to the same as the original device.
Reconnect all lines and check the terminal tightening condition.
After powering on, confirm that the serial bus communication is normal.
Test the start/stop, loading/unloading, and all safety protection functions of the compressor.
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We offer technical support including refrigeration parts parameter matching, model selection and installation guidance. We help customers quickly solve problems of parts adaptation and system commissioning to avoid equipment failures caused by wrong selection.

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Normally needs 5-7working days. If quantity is large or need to customize, please confirm with us before order.
Please send us the model number of the product you need. We will generate an online order and it will be sent to your address via courier service at that time.
All of our products are guaranteed to be genuine and original. Before leaving the factory, we conduct detailed inspections on each product.
Telegraphic Transfer(T/T); Letter of Credit(L/C); Paypal,Alipay,Alibaba Online
By Sea: Suitable for large volume. Cheap and safe, but slow.
By Air: Suitable for urgent order. More safe and fast.
By Express: Such as DHL, TNT, Fedex, UPS...Customs clearance included and sent to door, very convenient.
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