WB Greenstar 30CDI combi rads lukewarm

[hammers4spanner]

Syphon mode is flaming annoying aint it .

On the occasion i had it like that it never actually switched out of it , had to get a new pcb which came with the whole wiring loom .

Right pain

 

[Gas74]

What's the flown return temps. Had a similar issue and it was a faulty bypass under the floor so was just horsing round a very small loop. Just a thought

 

[Allgoode]

Sorry, just too update you all.
Went on another visit to customer a few days ago after customer got over lurgy & after getting onto Worcester tech found that it was running in syphon fill mode although not displaying the code. Ended up resetting it a couple of times before it would hold the setting that had syphon mode switched off.
Worcester have advised that if it defaults to syphon mode again then as last resort it will be a reset on PCB & if that fails to hold a new PCB will be reqd.
A good nugget of info to file away there,
Cheers for advice guys,
Andy

 

[hammers4spanner]

Same as what I had