Greenstar 30 CDI - No hot water

[Optimusfb]

@muggles We do usually have it on timer (one hour in the morning and one hour in the evening), its just recently we have been putting the button on manually as weve been away for a day or two.

Eager to get home so I can try this out ASAP.

I know this depends entirely on a households consumption of water, but what would be the typical settings for a household with 5 people in terms of putting the hot water on? eg two hours in the morning and two hours in the evening?

Is it worth having the eco button on?

 

[Gasguru]

Lot of confusion going on here....

You have a combi boiler. The eco button is ONLY used in conjunction with the instantaneous hot water that a combi can produce. It's not clear whether the boiler is still configured to produce hot water this way. Do you know if any taps (maybe the kitchen sink) are still fed direct from the boiler? The eco button determines whether the boiler should keep itself warm in order to provide a quicker drawoff of hot water...it has no bearing on the heating or hot water provided by the cylinder. If all your water is provided by the cylinder you should select the eco mode by holding the button in until it glows orange.

Your problem appears to be either a timeclock problem or cylkinder thermostat problem. You could turn on the electric immersion heater to give hot water until the problem is resolved.

 

[Optimusfb]

@Gasguru Thank you for your message. Im not too sure if the Eco button was actually ever on or not (before the engineer came and reset the boiler). I was eager to know if its worth having on i.e. would it be beneficial for me. By reading your message i think it can be, especially during the times when the hot water timer isn't on.

Not sure if any of the sinks are directly fed into the boiler.

 

[Gasguru]

Find out if any of the taps are fed from the combi...then decide whether to have the eco on or off.

 

[Optimusfb]

@Gasguru I will find out and revert back as soon as I can

@muggles I switched the back light off, and to no avail the burner light did not appear on........so that rules that out....

 

[Optimusfb]

Might be worth mentioning that there were gas works on our road, they were installing tlbetter quality pipes to each household. But that was almost two weeks ago until they did ours and we were still recieving hot water

 

[Johnmdc]

From your description of your layout it sounds as thought the heating and water have been fed off the flow and return of your combi boiler, presumably as a S plan system.
Therefore, there must be 2 zone valves somewhere. If the programmer is not faulty then the valve for the hot water could be.
But the most likely problem will be the over heat stat on your hot water tank. (If it has one) post a picture if you can.

 

[Optimusfb]

@Johnmdc thank you for your message. Do you mean you would like a picture of the mega flow?...

 

[Johnmdc]

Yes the thermostat on it

 

[Optimusfb]

Ive enclosed the picture as requested @Johnmdc

 

[Johnmdc]

The over heat stat is under that little black cover. If you unscrew it you should see a pin about the size of a match stick. Push it in, if it had tripped that should reset it.

 

[Optimusfb]

@Johnmdc before I do that, what does trip mean and what would reset? What are the possible reasons for tripping?

 

[Johnmdc]

The over heat trip cuts off the power to the hot water valve so it doesn't open and fire the boiler up.
It is a back up to the thermostat and trips if the water gets too hot.
It can trip if the thermostat is faulty and if it trips again then the thermostat unit should be replaced. But sometimes they just trip for no apparent reason.

 

[Optimusfb]

@Johnmdc thanks for that information.

Do I just literally unscrew the black cover and push the button?...

 

[Johnmdc]

Yes