Circulator Pump Ncb-H for NAVIEN TANKLESS WATER HEATERS Part# 30023987A

Existing reviews

Helpful Product Insight

After dealing with a situation where the old drain pump started making grinding noise, we installed this replacement part. No leaks or issues noticed so far. Repair turned out easier than expected honestly.

From: Guest | Date: 9/11/2025 9:36 AM

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Replacement Observation

The washer stopped draining properly on our appliance ended up being caused by a failing part. Connector alignment matched better than expected and the replacement solved it.

From: Guest | Date: 10/30/2025 9:36 AM

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