No Hot Water Upstairs

[jeb]

HI
just moved into house which has a saunia duval 623 combi. When you initially turn upstairs hot water taps on ( bath or basin ) it runs hot for a few seconds then goes down to slightly warm. ground floor kitchen sink tap runs hot as required. any ideas please?

 

[xt71]

Same problem on SD F24E Please help!! I can get some hot water upstairs if i turn the tap on very slowly but this only works for a short time while the tap downstairs stil provides hot water. the boiler is situated downstairs. Is this the water flow sensor??????

 

[kevplumb]

HI
just moved into house which has a saunia duval 623 combi. When you initially turn upstairs hot water taps on ( bath or basin ) it runs hot for a few seconds then goes down to slightly warm. ground floor kitchen sink tap runs hot as required. any ideas please?

diaphram in the water section is first suspect (argghhhh)

 

[gas4you]

2nd suspect scaled up DHW heat exchanger

 

[xt71]

Will that be the same for the F24e?? Dont think it has a diaphram??

++++++++++++++++
Moderator's note

Hello and welcome to the forums. Please create a new thread.

It is quite likely that the cause and solution to your problem will be different, and it is difficult and confusing to carry on two conversations in a single thread

please have a look at //www.diynot.com/forums/viewtopic.php?t=19448

Mod Rupert
++++++++++++++++

 

[xt71]

WOW, dont really think that was hijacking, my problem was excactly the same!
My intention was to get both myself & 'Jeb' an answer & at least Jeb has received an answer!!!!!!!!!!!!!!!!

 

[Slugbabydotcom]

WOW, dont really think that was hijacking, my problem was excactly the same!
My intention was to get both myself & 'Jeb' an answer & at least Jeb has received an answer!!!!!!!!!!!!!!!!

Totally different boiler with about 15+ years difference between dates of manufacture. It's roughly equivalent to comparing a VCR with a DVD

Make your own post and you will get an answer