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Observance of Labor day 09/07, Monday we are closed [No shippings and deliveries ], Orders received after 3.00pm CST on 09/04/2026 will be shipping out on Tuesday 09/08/2026.
The Rinnai 104000288 Water Heater-RUR Pump Replacement Kit circulates water through the system to maintain proper flow and function. This makes the internal mechanism of the heater operate consistently. The kit is designed to fit into Rinnai water heater units, thus being a perfect fit for the target model series.
What maintenance is required for the Rinnai 104000288 RUR Pump Replacement Kit?
Clean the pump inlet and outlet to prevent sediment buildup. Verify that all fittings are tightened correctly and that hoses are positioned without kinks. Run the pump briefly to confirm steady water flow. Monitor connections for minor leaks during operation.
What are common issues with the Rinnai 104000288 RUR Pump Replacement Kit?
Water flow inconsistent.
Pump cycling irregularly.
Temperature fluctuations in output.
Error codes appearing on the heater display.
Installation Steps
Step1: Turn off the water supply and power to the appliance.
Step2: Drain the unit to prevent leaks.
Step3: Disconnect the old pump carefully.
Step4: Install the new pump, ensuring proper alignment and seal.
Step5: Reconnect all plumbing and electrical connections securely.
Step6: Turn on water and power, then run a test cycle to verify proper operation.
