Vailant Ecotec Plus central heating - radiators not hot

[jobayley]

Hi,

I wondered if any kind person out there could help me with a problem I'm having with my central heating. We have a vailant ecotect plus combi boiler but when I put the central heating on the radiators are only ever warm. I've got the thermostat turned to the max and the radiators don't need to be bled. I pressed the i and + button together and set the d.0 to 23. What am I doing wrong? Also, what function does pressing i and - have?

Thanks

 

[ukrobj]

what function does pressing i and - have?

When playing shootem up, it fires the cannon!

 

[harold5]

what was d0 before you set it,what controls you got ,has it ever worked ok

 

[jobayley]

Thanks for your reply. I'm not sure what it was before I set it. When I pressed i and + together it just said d.0. It did work ok last winter, yes.

In terms of control we have the two temperature dials (one for water, one for radiators), a pressure gauge and then the reset, +, - and info buttons.

 

[harold5]

so no time clock/roomstat/weather comp.when you set d0 to 23 did you hold the i button to confirm. im not trying to be funny but it doesnt sound like you have any idea what your doing and playing with your d codes can mess your boiler up . read the manual first.have you changed anything else?

 

[simond]

From memory pressing the buttons together allows you to access the fault code history.

What type of controls have you got? If you have a Vaillant ebus control, such vrc400 or vrc430, the radiator temp is managed using a weather sensor.

 

[bobw1956]

Why did you change the heating part load? (D0 23)

The ! is an information button

Will the boiler stay lit when heating is selected?

 

[Bunnyman]

Turn the heating knob on the boiler up do the numbers change in the digital display?? If they don't you have snapped the knob which is common they r fragile

Untitled

• Bunnyman
• 26 Mar 2010
• 499