Winter months in Georgia can test even well-maintained tankless systems. This Snellville homeowner found that out when their Rinnai unit displayed error code 11 and stopped producing hot water. Cold weather can sometimes affect gas flow and ignition components in tankless heaters, particularly in basement installations where temperatures fluctuate. Our technician arrived to find the wall-mounted unit mounted on exposed studs in an unfinished basement area, with the front panel removed for inspection. The error code pointed to ignition failure, which meant examining the gas valve assembly, flame sensor, and control board connections. After methodical testing of each component, we identified the issue and got reliable operation restored. With the system back online and producing the consistent 130-degree output shown on the display, we advised the homeowner about seasonal checks that help tankless units handle temperature swings. Call Now to schedule service with Keep Smiling Plumbing, and ask about our senior citizen discount for preventive maintenance that keeps your hot water flowing year-round.
