What actually fails on a tankless in China Grove
Tankless units tell you what is wrong if you read them. Nearly every call starts with an error code, and the code plus the gas supply narrows it down long before anyone needs to open anything.
The local variable is the water. Yours comes from Salisbury-Rowan Utilities. Where that supply is soft, scale is a slower problem here than the national troubleshooting guides assume, which means a unit throwing a temperature fault in China Grove is more often a flow sensor, an igniter or a gas supply problem than the limescale everyone reaches for first.
- Ignition and flame failure codes: gas supply, igniter or flame rod before anything more expensive.
- Cold water sandwich: usually a behaviour of the system rather than a fault, and worth explaining before selling you a fix.
- Flow sensor faults: common, cheap, and frequently misdiagnosed as a failing exchanger.
- Heat exchanger: the one genuinely terminal failure, and often still under a long manufacturer warranty. We check the serial before quoting.

What China Grove itself changes
Where the heaters sit
Utility room, closet and crawlspace through the older streets, garage in the newer building. In the mill-era houses the doorway is frequently the binding constraint, not the floor space, and it is worth measuring before anyone quotes you an upgrade.
The housing in China Grove
China Grove grew around milling and the town still shows it, right down to the 1903 roller mill in the middle of it. The housing that came with that era is small, close together and still occupied, and the utility spaces in it were sized for the equipment of the time rather than for a modern fifty gallon tank. Newer building sits around the edges. The question we get asked most here is not what it costs to fix but whether a bigger tank will physically go in, and quite often the honest answer is no.