E16
Kelvinator Combustion Air Proving Fault

Kelvinator furnace shows E16 and the inducer starts and stops repeatedly without ignition

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Blocked combustion air intake, Undersized or improperly installed intake piping, Strong negative pressure in mechanical room, Defective pressure switch on intake side (if separate)

How to Fix / Troubleshooting

Safety first: Turn OFF power and gas before modifying intake piping.

  • Check intake termination: Go outside and inspect the combustion air intake hood. Remove any obstructions such as leaves, snow, or insect nests.
  • Verify pipe sizing: Ensure the PVC intake pipe diameter and length match Kelvinator installation requirements. Excessive length or too many elbows can prevent proper air flow.
  • Room pressure: If the furnace is in a tight mechanical room, open a door or window temporarily and test operation. If E16 clears, additional combustion air openings may be needed.
  • Inspect intake pressure switch: On models with separate intake and exhaust switches, check tubing and wiring to the intake pressure switch. Replace if defective.
Advertisements

Repair Difficulty

Hard 4/5

Required Part

Combustion Air Intake Assembly
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements