glow.worm 30cxi fault

[daf1983]

hi, im new to the forum, hoping somebody can help!, i have a fault on a glow worm 30 cxi, the heating works fine but the hot water doesnt, i replaced the flow sensor on the hot water, this rectified the problem for 2 days, then yesterday morning it stopped working again, the system pressure is fine, any advice would be welcome! as the glow worm technical helpine just dont ever seem to answer the phone! many thanks, Dafydd

 

[bengasman]

Glowworm is now owned by Vaillant, which would answer the question why they don't answer the phone.

Bit hard to say what the problem is, if all you tell us is that the ch doesn't work, and changing the sensor didn't solve it.

 

[daf1983]

thanks for the reply, sorry, the central heating does work, and always has worked, replacing the flow sensor (as advised by technical when i did manage to get through) did rectify the problem, but for only 2 days, which seems strange? thanks again

 

[mickyg]

Turn on the heating and while the display is showing the flow temp, turn on the tap. Does the display switch to the bar pressure reading? Leave the tap running. what happens? green light on? Any warmth at all to the water. keep watching the display while the tap is running, maybe flash F14?

 

[daf1983]

thanks for the reply, i will try that and see how i get on.

 

[thespaceman00]

Turn on the heating and while the display is showing the flow temp, turn on the tap. Does the display switch to the bar pressure reading? Leave the tap running. what happens? green light on? Any warmth at all to the water. keep watching the display while the tap is running, maybe flash F14?

Hey Mickyg,

My Glow Worm 24cxi has been showing the exact symptoms you just mentioned.

Is there a solution to fixing this?

Many thanks!

 

[Jordon]

Turn on the heating and while the display is showing the flow temp, turn on the tap. Does the display switch to the bar pressure reading? Leave the tap running. what happens? green light on? Any warmth at all to the water. keep watching the display while the tap is running, maybe flash F14?

Hey Mickyg,

My Glow Worm 24cxi has been showing the exact symptoms you just mentioned.

Is there a solution to fixing this?

Many thanks!

Plate to plate heatexchanger, Dhw heatexchager, secondary heatexchanger will fix that all one item just different ways of finding one on the net.

 

[mickyg]

Turn on the heating and while the display is showing the flow temp, turn on the tap. Does the display switch to the bar pressure reading? Leave the tap running. what happens? green light on? Any warmth at all to the water. keep watching the display while the tap is running, maybe flash F14?

Hey Mickyg,

My Glow Worm 24cxi has been showing the exact symptoms you just mentioned.

Is there a solution to fixing this?

Many thanks!

If its flashing F14 then as above you need a new plate heat exchanger, or to clean out the existing one. Depending on what access you have at the boiler it may be a job for an RGI.