Findings: The relay always stay energize getting power from Digital Output I/O card. So sandfilter can’t maintain the backwash sequence. That’s why , we change the DDO module in FCP-1 panel. Now the SF is working normally.

Findings: The relay always stay energize getting power from Digital Output I/O card. So sandfilter can’t maintain the backwash sequence. That’s why , we change the DDO module in FCP-1 panel. Now the SF is working normally.

Findings: The cable was disconnected. Action taken: Dressing the cable and reconnect.
স্লাজ ড্রায়িং বেডের পানি, পাম্প চেম্বারের লেভেল পূর্ণ করতে সময় বেশি নেয়।
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