HVAC Repair Blog

How to Fix Carrier Error Code 34 and 14 (Ignition Proving Failure & Lockout)
Symptoms of Carrier Error Code 34 When the furnace starts and shuts off after about 20-30 seconds, there is likely a problem with the proving of flame. When a furnace starts, it checks that the combustible gas is properly lit to avoid flooding the home with unlit gases and causing damage to the unit in the form of soot. You may notice that there will be flames and the …
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