truma fan on a while

[Tombola]

why would my turma fan start on as if cooling itself/venting when i arent even using it?

strange, been on 5 mins now

 

[movan]

Might be a daft suggestion, but have you accidentally switched the pump on and it's overheating so the fan has come on?

This is a very silly answer but it may make people think outside the box and help you. X

 

[Winger]

Did you find the problem. Seems to be an unusual lack of responses from the knowledgable

 

[Tombola]

Did you find the problem. Seems to be an unusual lack of responses from the knowledgable

no, I found this https://www.truma.com/uk/en/faq/circulating-air-motor-trumatic-c
and this

Truma Trumatic C 4002 purge fan runs continuously with switch off

I hope somebody can advise – I have a Truma Trumatic C 4002 (gas only water and air heater) in my Chausson Welcome 85 built in 2005 – 2006. I use the heater very little so am not very familiar with its sounds. Since immediately after the last CVRT (Irish MOT equivalent) the purge fan runs continu...

forums.outandaboutlive.co.uk

none of which explain why it would run when I wasnt even using it? Ill speak to dealers/truma.