Companion Aeroheat Ducted Tent Heater

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FAQ:Why is my AeroHeat showing an E3 error the first time Ive switched it on?
The E3 error indicates an issue with your AeroHeats gas supply. It means there is no gas left in the canister, or that there is a blockage somewhere along the gas line. 
 
When your AeroHeat is stored like it is brand new in its box, air enters the unit and fills the gas line. The first time you hook up your AeroHeat to a gas supply, the air inside the unit blocks the gas until it is flushed out by the incoming gas supply.
 
To rectify this error, check that your canister or hose and cylinder are full and refit the cartridge or hose. Then turn on your AreoHeat and use as as per normal. If the E3 error returns, this means there is still air in the gas line and you will need to repeat the previous steps. This should only take a couple of attempts until all of the air is purged from the gas line.