HOT WATER PROBLEM

[diyboy]

Can anybody please help ?

I have a 6 year old Valliant TurboMAX Plus 828e Combi Boil and have starting to have problems with the Hot Water.

Central Heating works fine, but when I turn the hot water on the water comes out luke warm (boiler temperature display shows about 35). If I turn on the hot water tap, the green light flashes and the amber light comes on, but the water temperature temperature starts to drop. When I turn off the tap the amber light goes off and the comes back on again until the temperature display reads about 79. If I then turn the tap back on the Amber light comes back on and the water start off boiling hot and then starts to drop in temperature until it back at 35 and the water in luke warm. The amber light stays on , while the tap is open, but the water temperature does not go back up.

I have checked to see that the boiler burners are running when the amber light is on and they are.

The diverter Valve has been recently replaced so I don't think this is the problem.

The tape water pressure seams the same as always.

Can anybody please give me any advise.

 

[picasso]

Make sure the gas valve under the boiler and the ecv on the meter are fully open.

 

[diyboy]

Thanks for your reply Pacasso. Would the heat work fine if the gas valves wasn't fully open ?

 

[kevplumb]

would work just take a little longer

 

[diyboy]

Sorry Pacasso, also wanted to ask what was the ecv and how can I identify this ?

 

[DavidDaft]

might be dirt in the hw heat ex

 

[picasso]

its the handle next to the gas meter.

 

[diyboy]

just checked and gas valve and ecv are open fully

 

[faizal]

check the flow switch

 

[diyboy]

How do I check the flow Switch ?

 

[DavidDaft]

run the hot tap without the c heating on,does the boiler fire up at all?

 

[diyboy]

When I run the hot water the boiler doesn't fire. When you run the hot water the green light doesn't flash. I have been told it is the component that send a signal to the diverter valve that hot water is requested. Can any boy tell me what this part is and how to change it. I have changed the diverter valve so know its not the valve.

 

[kevplumb]

Can any boy tell me what this part is

flow switch

 

[diyboy]

Thanks kevplumb. Where is this located and is it easy to change.

 

[kevplumb]

according to de book its called an aqua sensor

flow turbine i would think don't look to bad a job in the book

put an e mail in your profile

you might as well read it as me type it