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Discuss Ideal Classic FF250 boiler does not stay on in the Central Heating Forum area at PlumbersForums.net

Messages
8
My boiler packed up 11am yesterday after 21 years problem free heating.

What happens when I switch it on is:
The fan starts, the boiler then fires up and works for about 2 minutes and then the flames go out but the fan is still running.
If I turn it all off for half and hour it can then be restarted and runs same again for 2 mins then nothing.
Just enough to warm the tails of the nearest radiator (hall), which makes me think my pump is OK.

I'm thinking this may be thermostat related.
Potentiometer or Overheat thermostat but that said the overheat reset button hasn't popped out at all.

Two months ago, I had two radiators replaced, all radiators balanced using a thermometer to check difference in the flow and return temperatures
and the system was flushed through and Fernox inhibitor added.

Any advice or confirmation welcome please.
 
Messages
141
I have an FF360 and these boilers are pretty dumb (basically on/off), so I can't see any scenario where the problem is not inside the boiler if the fan keeps running after the flame stops. As suggested, time to get someone out to fix it.

After you get it fixed, I'd be interested to know what the problem was.
 
Messages
8
Then it's probably a boiler fault so will need a Registered Gas Engineer to diagnose and repair.
For your information, I called a RGI at 8/30am on MONDAY. He came out at 10am took the cover off it, shone the light from his phone in it and then said he would need to call Ideal's advice helpline which he said he left a message for them to ring him to discuss. With that he left and said he would be in touch. Despite calling HIM 3 times that afternoon I never heard back.
I wanted it diagnosed not a head scratch!

At last he didn't get any money from me.

I had hoped by now someone in this forum would have even if just suggestion, what part may be caused this.

My idea is, the ignition electrode lights the boiler, then a crack in the insulation on the cable or cable fault heats up and the boiler turns the gas off. I've ordered all the usual parts today except the solenoid and PCB.
 

SimonG

Plumber
Messages
19,857
For your information, I called a RGI at 8/30am on MONDAY. He came out at 10am took the cover off it, shone the light from his phone in it and then said he would need to call Ideal's advice helpline which he said he left a message for them to ring him to discuss. With that he left and said he would be in touch. Despite calling HIM 3 times that afternoon I never heard back.
I wanted it diagnosed not a head scratch!

At last he didn't get any money from me.

I had hoped by now someone in this forum would have even if just suggestion, what part may be caused this.

My idea is, the ignition electrode lights the boiler, then a crack in the insulation on the cable or cable fault heats up and the boiler turns the gas off. I've ordered all the usual parts today except the solenoid and PCB.

Maybe you should try reading the forum rules with regard to combustion appliances before you climb on your high horse.

So stop tinkering as it's illegal.
 
Messages
141
You should call someone that knows how to diagnose the problem properly, and beware of people that just swap parts until they get it right, as that could cost you a lot more in the long run.

The fact your guy called Ideal for advice and didn't just start changing things in my opinion is a good sign. I am not sure why he didn't call you back, I would try to keep calling him, if you are still on good terms. If not, find someone else that has experience with the older Ideal boilers, they made a lot of them, and they are simple and reliable.

As SimonG said, you really shouldn't play with it yourself. Even if someone on the forum knew exactly what the problem was based on your symptoms, they would not tell you, as it may encourage you to try to fix it yourself. It may be that you just planned to buy the required part ahead of time so that when certified engineer comes, the part is available. However the people on here have no way of knowing what you plan to do, and no one wants to have any part in someone blowing themselves up, or poisoning their kids with CO.
 
Last edited:

Aquarius

Plumber
Gas Engineer
Messages
986
As SimonG said, you really shouldn't play with it yourself. Even if someone on the forum knew exactly what the problem was based on your symptoms, they would not tell you, as it may encourage you to try to fix it yourself.

Or encourage others
 
Messages
8
You should call someone that knows how to diagnose the problem properly, and beware of people that just swap parts until they get it right, as that could cost you a lot more in the long run.

The fact your guy called Ideal for advice and didn't just start changing things in my opinion is a good sign. I am not sure why he didn't call you back, I would try to keep calling him, if you are still on good terms. If not, find someone else that has experience with the older Ideal boilers, they made a lot of them, and they are simple and reliable.

As SimonG said, you really shouldn't play with it yourself. Even if someone on the forum knew exactly what the problem was based on your symptoms, they would not tell you, as it may encourage you to try to fix it yourself. It may be that you just planned to buy the required part ahead of time so that when certified engineer comes, the part is available. However the people on here have no way of knowing what you plan to do, and no one wants to have any part in someone blowing themselves up, or poisoning their kids with CO.
Find someone else that has experience with Ideal boilers?
Easier said than done.

I accept that generally, people shouldn't "play with boilers" especially if they don't know what they are doing. There is no way I would change anything that was gas such as the solenoid for example. I fitted a carbon monoxide alarm where the boiler is years ago.
My point is, if householders can have an idea what is wrong, look up the cosy of the parts, they wont get stung when a fitter eventually turns up and fixes the problem.

I changed the pump with a new one yesterday, worth doing but it didn't make it work.
My house hasn't blown up yet as the parts dint not arrive next day by 1pm, they dint even arrive next day!
The parts centre uses Royal Mail as their chosen courier.
 

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