2003 Swift Challenger. 12v being delivered to the Truma socket, pump works when connected to independent 12v supply, pump running light on, pump has been shaken to eliminate airlock, but nothing at any of the taps.
Any ideas gratefully received. (And the moral of the story is to check well in time before a trip to give time to get repairs done 😕)
Have you left the pump running long enough to pump the air through as the hot water tank can take a while to fill?
The cold water should come through first as there is no tank to fill so open the taps furthest away from the water inlet housing first to expel the majority of trapped air. The shower head is the highest point in the system so open the shower taps last till the water stops spluttering.
If that doesn't work then check for a leak as the slightest air intake will stop the system from pressurising.