vaillant 282e no ch

[jumpingjackflashman2]

hi, i have a 282e which is fine for hot water but only fan and pump fire up when ch is called,any ideas? also where can i download a manula for it? vallant only post them out which is slow, cheers.

 

[ChrisR]

Is it a turbomax? Black plastic panel, green knobs?

 

[jumpingjackflashman2]

can't rememebr, am not at the shop today,its about 15 yrs old though.

 

[mlb3c]

if it is the old 282 check the water section and the servo valve

 

[jumpingjackflashman2]

ok will do, thanks mate.

 

[Rob]

If pump and fan run then id say the fault lies with the pressure differential not being activated in htg mode

 

[jumpingjackflashman2]

oh, what would need replacing then? the diverter valve? does this old model have a diverter or is that the servo valve? are they the same thing?

 

[mlb3c]

the servo valve controls the diverter