South Euclid, Ohio

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Recent South Euclid, Ohio by VIP Plumbing Inc.

Navien NR-240A Condensing Tankless Water Heater W/ Circ

2-3-11 Trouble shoot Navien NR240-A tankless water heater installed by others. Spoke with tech support and they recommend replacing the circuit board. Recirculating valve was not turned on when the unit was installed but the pump was running. Circuit board will be delivered tomorrow and the customer will call when it gets there. 2-4-11 Returned to install the circuit board. Circuit board part was covered under warranty. Once installed the unit still did not work properly. We shut off the 1/2 ball valve that supplied the circulating pump and then the unit worked properly. The circulating pump must have burnt up when it was running dry for all those months. A new pump is being sent to us for replacement. The pump was allowing cold water to back feed into the hot supply line tempering the water down. All problems stem from improper installation. Model #NR240A Serial #9545-20100205-2097