E06 🔴 Call a Pro
A.O. Smith Error Code E06: Flammable Vapor Detection
⚠️ The water heater has detected flammable vapors, indicating a potential fire or explosion hazard. Shut down the unit immediately and evacuate the area.
How to Fix A.O. Smith Code E06
- Step 1: Immediately shut off the gas supply to the water heater at the manual shut-off valve.
- Step 2: Evacuate the area and ensure everyone is a safe distance away from the water heater.
- Step 3: Do not attempt to operate any electrical switches or devices, as this could create a spark.
- Step 4: Contact your local fire department or a qualified HVAC technician or gas company from a safe location to investigate the source of the flammable vapors.
What Does A.O. Smith Error Code E06 Mean?
The E06 error code on your A.O. Smith water heater indicates that the unit's flammable vapor sensor has detected the presence of potentially explosive gases. This is a serious safety concern. The water heater is designed to shut down automatically to prevent ignition of these vapors. This sensor is located near the base of the unit to detect heavier-than-air gases like propane or natural gas. It's important to address this issue immediately to prevent a fire or explosion. The unit will remain locked out until the issue is resolved and the system is reset.
Common Causes of A.O. Smith Code E06
- Gas leak near the water heater (natural gas or propane)
- Spilled flammable liquids (gasoline, solvents, etc.) in the vicinity of the water heater
- Malfunctioning flammable vapor sensor
- Improper venting of nearby appliances causing gas buildup
Applicable A.O. Smith Models
Need a Pro to Fix A.O. Smith Code E06?
This error requires immediate attention from a licensed HVAC technician. Do not attempt repair yourself.
Find a Licensed Tech Near You →Replacement Parts for A.O. Smith HVAC System Code E06
Flammable Vapor Sensor OEM: 9007618005
Gas Control Valve
Electronic Control Board