Low
105 on Atag A200

Your boiler has detected low water pressure and is now running a pre-programmed automatic cycle to clear any air bubbles from the pipes.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

De-aeration program will start (if the pressure was below 0.7 bar). This will last for approx 7 mins.

DIY fix possible

Check the pressure gauge is between 1.0 and 1.5 barIf pressure is low, top it up using the filling loopWait 7 to 10 minutes for the internal air-clearing program to finish automatically

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