10 Simple HVAC Hacks for Summer Savings; My Braeburn Thermostat Won't Go Below 68 - Why? What To Do? How To Remove A Williams Wall Heater Cover. Carrier furnace code 34 is an ignition proving fault that indicates that the flame was not sensed during the trial for the ignition period. Typically, the control will trigger the ignition process 3 more times before going to status code 14. Carrier Furnace Code 34 and 14 [Fixed] 3.
Get a code 34 on my carrier furnace. Cleaned the flame sensor, but still get no ignition. Igniter seems perfect, it. Rick | 50+ yrs. experience as a licensed oil & gas technician. 70,989 Satisfied Customers. I have a code 34 on my carrier furnace. The Utilities Tech came out and said it is an igniter and needs replaced.. Gas and Oil Home Heating Furnaces - Carrier gas furnace code 34 - I have an older Carrier 58rav070-12. LED code is display 34 which, per the manual, means IGNITION PROVING FAILURE. When the furnace starts, I see a flame igniting and a fan kicks on. It stays lit for about 20-30 seconds then flames turn off. The fan