Carrier Furnace Flame Sensor Problem

You can detect a furnace flame rollout if you notice any signs of singing or discoloration on the exterior of your furnace s combustion chamber or other nearby parts.

Carrier furnace flame sensor problem.

If the flame sensor does not detect a flame the co. Immediately after the shut down the unit flashes a code 33 fault which is a limit or flame rollout switch in open fault. I need help with carrier furnace troubleshooting. Locate the current filter.

You might also be able to see the rollout occurring. Try cleaning the flame sensor with a fine abrasive pad. Sometimes if the flame sensor is dirty it will fail to detect a flame. Take out the old air filter and replace it with a new one.

After the fan stops the fault code clears and the unit initiates the burner start sequence and runs for another few minutes and so on. Ntrol board will shut off voltage to the gas valve to prevent the furnace from heating. Answered in 3 minutes by. Faulty flame sensor on a gas furnace troubleshooting video duration.

If the flame sensor is defective it might fail to detect a flame. The flame sensor monitors the burner to detect whether or not a flame is present. I want to try and fix it myself. Carrier 58ss 58gp 3 wire pilot assembly operation duration.

Open the door panel to get access to your carrier furnace. In many cases if the furnace startup sequencegets as far as ignition then immediately shuts back off it can generally be traced to the flame sensor. Your gas furnace flame sensoris just one part a built in safety system for your furnace. If the furnace still doesn t heat replace the flame sensor.

Usually found where the cold air enters the unit either in the cold air return duct or the entrance to the blower chamber. I can help you with that. It is simple if you know what to do.