Customer complaint: No heat in the house, error code indicating motor fault. Tested furnace startup and operation—sequence of operations was normal. Observed that the gas valve opened, but the hot surface igniter was not heating. Tested voltage to the hot surface igniter—measured 120V as expected, confirming the igniter was faulty. Removed and inspected the hot surface igniter—found it broken. Advised customer of the issue, and they agreed to replace the igniter. Replaced the hot surface igniter and test-fired the furnace. Performed combustion analysis, heat rise test, safety checks, and inspected all electrical connections. Furnace is now operating as it should within manufacturer recommendations and current gas codes. Recommended annual furnace maintenance with Evans, including a safety check and cleaning, as the unit was installed in 2009. Also recommended maintaining the tankless water heater annually.