Just filled up the water tank and run the pump for the first time this year. Cold water OK , toilet OK but no water from hot taps. The pump doesn't run when taps turned on to hot. Any ideas please.Everything was drained down for the winter so perhaps there is a vent somewhere. Nothing in the Truma instructions.
Thanks Delboy but I have been down all those roads to no avail. Even had the boiler on, it is capable of running with no water so "the book" says, do hope it is right.
If there is a valve I can't find it. I did wonder about disconecting some of the pipes round the boiler to see if anything came out but the pipes wont budge.
I have two drain down valves having got rid of the automatic thingy. If I open one the pump runs but still no water. It has to be an airlock somewhere.
We had a similar problem last year and found that if I opened the kitchen tap, thereby running the pump and then opened the bathroom tap we eventuually got water on both.
The only other suggestion I have is pulling water through the hot system by sucking it up to the tap level or at least to a point above the pump.
------------- The smile you send out is returned a thousand times...
I had same prob after Xmas, drained down etc, nowt through, just disconnected feed to pump, blew back down pipe into tank, reconnected, sound, and so as been ( touch wood ).
------------- Keep smiling, its later than you think !
Sorry folks. Tried all those tricks & no joy. The pump just does not run with the hot water taps. Must be an electrical fault somewhere.Give up and go to my "mender".
It's booked in for a service & MOT next thursday and he has been warned.
This sounds electrical to me as the pump should run even with no water in system,have you checked your 12v fuses, my habitation fuse box is under seat/bed locker
Its been to the menders, had its mot and service and the problem was a non return valve sticking, so now you know there is a non-return valve in the system/. I had no idea.
My mender is excellent and reasonable. Yippee!!
Had a great time in devon & cornwall with no problems.
Quote: Originally posted by rogerangie on 20/4/2009
Its been to the menders, had its mot and service and the problem was a non return valve sticking, so now you know there is a non-return valve in the system/. I had no idea.
My mender is excellent and reasonable. Yippee!!
Had a great time in devon & cornwall with no problems.
Just read this thread...I've had the same problem.. the non return valve is in the cold water inlet connection at bottom right hand corner of the unit. all it is is a plastic valve and a spring, with a small rubber tap washer on the end. the washer gets wedged if the tank freezes.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets
Topic: hot water
