Gas valve failure codes on water heaters indicate control issues that often warrant replacement. This Wellington unit displayed a seven-flash error pattern pointing to gas valve malfunction. The water heater was accessible in an exterior closet. Inspection confirmed the age and condition made repair impractical. Riley Plumbing Heating And Air installed a new power-vented gas water heater. The crew positioned the unit, connected gas and water lines, and installed proper venting to code. Seismic strapping secured the tank. The new installation included a properly sized temperature and pressure relief valve with drain line termination. Power venting allows flexible exhaust placement where atmospheric venting wouldn't work. The technician tested ignition, adjusted gas pressure, and verified proper operation before completing. Old water heaters with electronic controls develop valve problems that cost nearly as much to repair as replacement. If your water heater installation is approaching 10-12 years, call now to discuss replacement before failure occurs.