My rinnai 1004 keep shuting off and is blinking 14

CODE DISPLAYED FAULT REMEDY 11 Ignition Failure Check that gas is turned ON. Service call if repeated. 12 Flame Failure Check that gas is turned ON. Service call if repeated. 14 Overheat Clean filter. Service call if repeated. [1] 16 Room Overheat Lower room temperature to less than 104°F (40°C). 31 32 Room Temperature Sensor Faulty Service call. 33 34 Overheat Temperature Sensor Faulty Service call. 49 Sensor Breakdown Service call. 53 Sparker Failure Service call. 61 Combustion Fan Failure Service call. 70 Faulty ON/OFF Switch Service call. 71 Faulty Solenoids Service call. 72 Faulty Flame Rod Service call. 73 Communication Error Turn heater OFF, then ON again. 99 Flue Block Check around the flue terminal for blockage. [2] [1] Remove any obstructions. The flue needs to be kept clear to expel exhaust gases. If the appliance fails to operate contact a qualified service agency. [2] If the fusible link needs replacement, it must be done by a qualified service agency. In addition, the cause of the overheat needs to be determined. The fusible link is a one use safety device that breaks to shut off the appliance.