Worcester junior 28i no hot water

[fuzzy]

Worcester junior 28i is working on heating, working on hot water when heating is on, but hot water will not fire up on its own.
The boiler is showing no fault lights and tries to go through its cycle and stops, tries again then stops.

Any ideas?

 

[SafeGasInstall]

did u have a look on the diverter valve does it go up and dawn fully ! flow switch !

 

[SafeGasInstall]

and sensor resistance reading too

 

[fuzzy]

only happened this morning so not even looked at it. i thought flow switch, i know where there a like of rlike boiler not being used. may try and swap the flow switch and maybe diverter to see if that fixies it.

wondered if anyone had this issue with this particular boiler and if it was a common remedy for it

 

[SafeGasInstall]

Most likely is the diverter valve

 

[aggis]

Start with flow switch, then check that the diverter changes over if f/s working.

 

[fuzzy]

well, it was easier than i thought. boiler in loft, checked it and the pressure was down to zero! not sure why it fired on ch and not hw? never mind sorted now, thanks guys

 

[SafeGasInstall]

this boilers dont have low limit stat so the biggest problem is running it dry 🙂

 

[fuzzy]

hence the funny noises

 

[SafeGasInstall]

ha ha yes just like a hungry monster