What actually fails on a tankless in Landis
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 Landis 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 Landis itself changes
Where the heaters sit
Utility room, closet and crawlspace in the mill-era stock, garage in the newer streets. We ask about the route in as well as the space itself, because in these houses the two are rarely the same problem.
The housing in Landis
Landis was incorporated in 1901 and built around textile milling, and the housing that came with the mills is still the backbone of the town. Small, older, owner-occupied houses with small utility spaces, surrounded by later building. Most water heater calls here are on their second or third tank, and the constraint is usually physical rather than financial: what will actually fit in the space, and what the existing wiring or gas line will carry.