Boiler / Hot Water / Radiator Help

quicksilver1314

Hi Guys, :wave:


If this is in the wrong place please move it.

I wonder if someone can help me. I have a problem with my Hot Water and Radiators.

When my Boiler comes on it only heats the up stairs radiators, the down stairs takes ages before any heat comes through. In addition i cannot get my Hot Water to go colder, at the moment it is at nearly boiling point when i comes out of the tap, i have turned down the thermostat in the airing cupboard on the hot water tank but it doesnt make any differance and at the moment it is turned right down to 20 degrees the lowest it will go. I have 2 young children and am worried they will burn themselves on it.

I appreciate it is a difficult thing to diagnose without looking at it but if anyone could give me an idea of what it might be before i call someone in. Its just you hear about them telling you you need a new boiler when in fact its just a part thats needed. It would be nice to be armed with a bit of info incase they start talking silly money.

Thank You for any help

ormus

what make and model is the boiler?
is it the stat actually mounted on the side of the boiler?
the stat maybe faulty.

quicksilver1314

ormus wrote: »

what make and model is the boiler?
is it the stat actually mounted on the side of the boiler?
the stat maybe faulty.

Thank you for the reply, the information on the boiler is

Ideal
Minimiser SE
V219
FF40

And no the thermostat is on the front of the tank in the aireing cupboard, the only thing that is on the boiler is a dial that has numbers 1 - 6 on and it is turned up to 6.

On the wall near the boiler is a Danfoss FP715 control panel thingy that we use to control when the radiators and the water come on and if we want to put them on the just 1 hour say at night.

Thanks again

Canucklehead

Hi

First off turn the boiler stat down to 3 ish. Boiler should stop heating the water until the cylinder temp drops considerably.
Does the cylinder stat 'click' at any point in it's travel from minimum to maximum, and back?
Other possibility would be sticky motorised valve .

GSR.

quicksilver1314

Canucklehead wrote: »

Hi

First off turn the boiler stat down to 3 ish. Boiler should stop heating the water until the cylinder temp drops considerably.
Does the cylinder stat 'click' at any point in it's travel from minimum to maximum, and back?
Other possibility would be sticky motorised valve .

GSR.

Hi

Thanks for the reply

The thermostat on the cylinder clicks at around 80 degrees at the moment.

Cheers for the help

macman

Sounds like you need a new 'stat on the tank. It should be maintaining about 60C-80C is far too hot. Easy 10 minute job to change it.
Why have you got the boiler stat on 6 if the water is too hot though?

quicksilver1314

macman wrote: »

Sounds like you need a new 'stat on the tank. It should be maintaining about 60C-80C is far too hot. Easy 10 minute job to change it.
Why have you got the boiler stat on 6 if the water is too hot though?

Honestly no idea, dont think this has been changed since we moved in. I dont know anything about central heating and at the risk of sounding thick what does the stat on the boiler do? I thought the one on the tank controlled the water temprature.

Thanks for the reply

macman

The one on the tank controls the temperature of your hot water from the taps (or in your case apparently not). The one on the boiler controls the temperature of the hot water leaving the boiler.
Turn it down to 3 as advised by canucklehead.

Canucklehead

quicksilver1314 wrote: »

Hi

Thanks for the reply

The thermostat on the cylinder clicks at around 80 degrees at the moment.

Cheers for the help

Hi
Motorised valve is staying open for hot water. You might find it is showing signs of leaking (rust or scale).

GSR.

ormus

ormus wrote: »

what make and model is the boiler?
is it the stat actually mounted on the side of the boiler?
the stat maybe faulty.

sorry, i didnt mean the boiler. no idea why i posted that.
i meant the hot water cylinder.

swiftandsure

Sorry haven't got a clue myself but have had similar problems. My biggest worry is your children and the hot water. A neighbour of mine once left her two children in the bath for a few minutes and the eldest one turned the hot tap on. They were both scalded to death. I have to say that they had no control over the temperature of the water as it was an army quarter in Germany and the heating/water was a communal supply.

If it costs a bit it is worth getting someone in to see to it.

My downstairs radiators do not heat up as well as the upstairs. The only answer I find is to turn off the upstairs (screw the valves down) and it forces the hot water downstairs. You might try bleeding the air out as well?

Personally I am going to have a combi installed in the summer to rid myself of the cylinder and tanks in the loft. Take care.