This listing is for:

BRAND NEW module / pcb for Truma Ultraheat space heater.

Built from 100% best quality components and 100% tested.
Held in stock for quick dispatch.
We offer tracked delivery as an option, at a subsidised price.

Guaranteed for 12 months.

How do I know if my board is faulty.......?

If one or more of your heat settings is not working, this is a common board fault symptom.
Often, the fault will be intermittent. 
Usually the 500W setting continues to work.
 If you have no heat at all, please check your thermostat / temperature sensor.
OR
Its just dead!