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When was it last serviced and has the diverter valve ever been replaced? Are you referring to the reset button?

Are you a Gas safe engineer?

They're both "Failed to ignite" faults. Either your gas supply is out or you have a boiler fault that needs looking at by a professional as Dan said.

Nah.. I just got wheels fitted to my Zimmer.. 8) Age have no relevance here Bunnyman... And I truly believe in that you can't put a price on proper Professional experience..

:( Sorry Bunnyman.. :(

Yeah, that should be fine. Power on, Mains water off so it can frost protect itself whilst you're away. Does it have Vaillant controls or Other?

The 600 series is different. It has an orange and black lead with a plug on the end that already exists on the harness in the left side. You snip the plug off and use a block connector to connect the sensor.

In order to fit the standard NTC sensor (VR10) to the ecoTEC plus open vent boiler an additional harness is required (as shown below) this can be obtained by getting your installer to contact Rochester Technical department and ask for the ecoTEC open vent, cylinder NTC harness. The harness is...

The vr10 semsor does go back to the boiler as the wiring diagram says. There is a special plug available for this connection to make the connection possible on the 400 series ecoTEC. Your suppliers merchant may be able to obtain it for you, i'll try to find out how else it can be ontained...

Reducing D2 will increase cycling.. and it's not a set value. There are a few variables in the algorithm that will alter the anti cycle time so meddling with it, and especially lowering it will make it cycle more. All the boilers mentioned above share the same startup logical sequences. It's...

Bi :lol:

If you are sure that you can see that it is leaking from the flue and running down the front of the heat exchanger, then it will very likely be one of the seals in the flue system. Generally caused from installation where the installer cuts the flue but doesn't clean the rough cut which damages...

True for sure. But it will greatly improve it and enable you to reduce waste energy on the central heating too, and if your coil rating is much lower than the minimum capacity of most boilers then the cylinder seriously needs upgrading too, as you have already said.

Misread ya Alec. Soz there being helpful

Yup. Ebus controls have this ability to do so. Can tell you how to in cc if you wish to know.

If you get your system design issues sorted and you still have issues with heating your cylinder and it continues to annoy you, you can use a valiant controller and module. It will cost you extra of course, but one of the main advantages it can offer you, which NO other controller can, is that...

Yes, but as it's in the standard forum... Are you a member of CC?

Hi, i'm guessing that what it is you are hearing turn off and back on when you say the boiler runs, is the Pump. The pump has a minimum 2 min overrun after it has reached temperature and the flame has gone out. It will then carry out a quick self check and if external demand still exists, it...