Vaillant Ecomax Pro 18E thinks its a combi????

[ziggyman99]

Hi,
I wonder if anyone can help please. I have the above boiler which seems to think its a combi boiler. The controls are giving separate symbols for hot water and heating with there own temp settings. Is the PCB shared with another model? Is there a way out of it? It's flashing up a PCB fault code (F13) but I suspect there isnt a real fault.

Thanks

 

[gas4you]

Why have you posted 'thinks it's a combi?'

F13 is the main pcb fault. Check all connections, if ok new main board needed.

The HW stat on the boiler should always be turned off, fully anti-clockwise.

 

[ziggyman99]

Hi Dave
the reason I said " thinks its a combi" is because the LCD display shows symbols and settings i'd probably expect to see on combi. Apologies if this sounds confusing.

 

[gas4you]

The display is generic, but water symbols should not normally be seen.

 

[ziggyman99]

The first setting shows "0.0 bar 32C". Then it flashes 13F telephone symbol. I press the centre button and I get "eco 38C" with a tap symbol then a further press gives the rad symbol with 22C. I can alter the temps within these displays.

 

[Agile]

Just what is the boiler no doing then?

Tony

 

[ziggyman99]

Hi Tony
not a lot! If I turn it off then on again. I get a F13 error. Then it displays a menu as the above post. I only turned off the mains supply briefly to do some other work then this happened. Frustrating! I'm sure it's in some diag mode or something. Is there a way to default the settings?