BOILERS

[BIG BOY]

OH MAN!FERROLI MEDINA COMBI, NO HOT WATER, HEATING FINE ,CHANGED DHW FLOW SWITCH STILL SAME PROBLEM . ANY IDEAS

 

[kevplumb]

1 DONT SHOUT
2 diverter valve

 

[BIG BOY]

there's no diverter valve,the heat exchanger is a combined one.Ever get involved in something you wish you hadn't?

 

[kevplumb]

so when you run the hot water the heating comes on

 

[BIG BOY]

the dhw heat exchanger runs alongside the ch heat exchanger(no diverter valve no plate heat exchanger) like a conventional boiler,just a flow switch and thermister and a very big headache

 

[kevplumb]

is the light on for dhw when you rur a tap

 

[BIG BOY]

no light on for dhw when tap is run

 

[bripl]

no hot water on the medina is it the 80 or the 102?

 

[kevplumb]

no light the book says suspect the flow meter

 

[bripl]

i know what the book says kev ,but how old is the boiler and the model will help their are acouple of things that need checking first kev

 

[kevplumb]

point taken t ill bow out and stand in the corner then

 

[bripl]

no no no kev poor boiler need to clarify things

 

[BIG BOY]

thanks for the interest lads it's a modena 80 e

 

[kevplumb]

fair comment

 

[bripl]

remove the blue flow restrictor on the hot inlet is the flow switch bent or straight?