Fireplace keeps beeping and flashing blue

[Luckylilly26]

Our fireplace keeps beeping and flashing blue. It was in storage for a bit so I figured it was a quick reset but on checking online, it said it may be that the backup ignition module needed the batteries replaced. However, can find where the module is or how to replace the batteries. Checked owners manual and nothing. Hoping you guys can help?

 

[Soundsailor]

What model is it?

 

[Scousers]

on our Furrion this would be a sign of overheat caused by dirt build up in the heat exchanger or crud accumulating on the sensor. easy fixes on ours.

Len