Help boiler control

Joined
19 Nov 2019
Messages
13
Reaction score
0
Country
United Kingdom
I have recently move house and we have Worcester boiler and RC Plus control. The boiler is turned up to maximum for radiators, radiators are on full. The control is set to a temperature of 23.5 degrees. The control never reaches the temperature set. Does anyone have any ideas what could be thanks
 
Sponsored Links
What temperature does the house reach? Do you have it on constant or timed?
 
Do the radiators stay on and are hot to the touch? or are they just warm, or keep going off?

If the radiators don't get hot there is a problem with the heating system and / or the boiler

If the radiators are hot to the touch and don't keep going off then the heating system is probably working properly. It will just be that your house is loosing the heat faster than you can put it in. In which case the system may need upgrading (larger radiators and possibly larger boiler to supply them) or the insulation of the property improved.

The official definition of a heating system is that it should reach and maintain 21 degrees. I think there will be a lot of systems that won't make 23.5
 
Your rads could also be undersized for the rooms they are trying to heat.

There's unfortunately lots of reasons why it's not as hot as you want it.
 
Sponsored Links
What temperature does the house reach? Do you have it on constant or timed?
It’s on in the evening from 5 till around 9.30 the most it reaches is around 19-20. It been on now for 1.45mins and is only 18.5.
 
Do the radiators stay on and are hot to the touch? or are they just warm, or keep going off?

If the radiators don't get hot there is a problem with the heating system and / or the boiler

If the radiators are hot to the touch and don't keep going off then the heating system is probably working properly. It will just be that your house is loosing the heat faster than you can put it in. In which case the system may need upgrading (larger radiators and possibly larger boiler to supply them) or the insulation of the property improved.

The official definition of a heating system is that it should reach and maintain 21 degrees. I think there will be a lot of systems that won't make 23.5


The radiators are hot to touch and don’t go off. The radiator is a large double radiator in the front room.
 
What windows do you have? Insulation? North facing walls?

What's the age of the house?

What's the size of your front room and what size is the rad?

Does your house go cold quickly when the heating is off?

Where is the control located?

Do you keep internal doors closed when the heating is on?

Sorry for all the questions
 
The radiators are hot to touch and don’t go off. The radiator is a large double radiator in the front room.
There you go then, if they are working and hot, there's nothing else that the boiler or controls can do. Either you need more heat from additional or larger radiators, or keep the heat in by improving the insulation. You could of course turn the room stat down. We have ours at 19 degrees and wear jumpers.

As you have recently moved house you should have seen an energy performance certificate. That will give you a clue if it's well insulated or not anything with a rating of D or below is not very good. The rating takes into account all areas of energy efficiency including lighting and the boiler but it will give some idea. Older houses with solid walls (ie not insulated cavity) can be particularly hard to heat. As can homes with cellars
 
Last edited:
You also say that the control never reachs the temp set , does the house feel warm and is comfortable for you?
 
Assuming the below applies to all radiators
The radiators are hot to touch

They will already be balanced correctly. If some are hot, and other's are not, then balancing can equalise (or balance) them, by diverting water from the hot radiators to the cooler ones. But if they all get hot now they will already be balanced.
 
Assuming the below applies to all radiators


They will already be balanced correctly. If some are hot, and other's are not, then balancing can equalise (or balance) them, by diverting water from the hot radiators to the cooler ones. But if they all get hot now they will already be balanced.

Good point , I was assuming that with upstairs being warm and downstairs cold that the upstairs ones are stealing all the heat.

Op, if your rads need balancing then with all the rads on full you will notice a temp difference between rads when you touch them.

If all the rads when on full feel roughly as hot as each other when you touch them then they don't need balancing
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top