Recent: Home max fs506x?

Mend > Home Heating Systems

Mend Classic FF 250 Boiler Heating System Pcb

Classic Boiler Overheat?

I have a Classic FF 250 that seems to switch off after 75 mins. The LED on the PCB goes out and nothing works for hours. Then the LED comes back and the boiler will fire - again for about 75 mins.

The feeder tank in the loft to the radiators ran dry which caused the problem (I believe) originally but this is now full again.

Is this still the likely cause of the overheat? Is there something else I need to do i.e. feed water into the system somehow?

Thanks

Gubbins
November 2007
ClassicClassic FF 250Heating, Home Heating SystemsBoiler Heating System Pcb
yes you need to fill central heating system check water in radiatiator and bleed them all

Taz
December 2007
yes you need to fill central heating system check water in radiatiator and bleed them all

Taz
December 2007
Thanks for this. When you say boiler thermostat - I assume this is somewhere on my classic boiler? Where would I find it?

Gubbins
November 2007
Cant say for certain without seeing it but I would say there could be a problem with your boiler thermostat.
It seems as though your boiler is getting to temperature and not turning off then activating the overheat safety device. This too could be over-sensitive and need replacing.
Try turning the boiler stat down a bit. If that doesn't work you need a corgi repair engineer to check it out.

Slugbabydotcom
November 2007

Related Questions ...

Mend boiler vokera heating
1

Faulty vokera compact 25?

I have spoken to the gas safe engineer that installed this boiler new approx. 3 years ago about the problems i... [Read more]
Mend combi boiler fault finding heating
1

baxi 80e combi boiler?

HEATING symbol doesnt light up,have followed fault finding procedure & fitted new PCB still no heating, divert... [Read more]
Mend boiler heating pressure
1

morco boiler not firing up?

morco feb24ed boiler has had new pcb, new pump and now new water pressure switch. As yet still showing low wat... [Read more]
Mend boiler heating lockout
1

halstead ace high problem?

Hi, I have a problem with my hot water and heating. The Halstead Ace High boiler does not come on when a deman... [Read more]
Mend boiler heating radiators
1

Baxi Maxflow Combi Fs?

The heating system works only if there is a call placed on the water ie actually running the water. Once this ... [Read more]
Mend central heating programmer fault
1

Boiler cutting ouit?

We have recently had a new central heating system fitted, and are having problems, what we have is the boiler ... [Read more]
Mend boiler heating relay
1

Potterton Promax 15HE Boiler -relay clicking problem?

Hi, Need some help please. A 6yr old Potterton Promax 15HE on an unvented boiler installation has suddenly st... [Read more]
Mend heating temperature overheat
4

Worcester 19/24CBI Problems (Over Heating, Fail to ingite)?

Hoping that someone can shed a little light on my problem or that this may help someone in a similar position.... [Read more]
Mend failed hello boiler
3

Has the Fan Assembly truly failed?

Hello all I have a Glow Worm Ultimate 120FF boiler that serves the central heating in my home. The system ... [Read more]
Mend boiler fault pcb
1

Glow.worm 30SXi F13?

4 year old boiler started to trip out with a F13 fault on display. British Gas have replaced main PCB and wiri... [Read more]
Mend boiler pcb fault controls
1

how to stop my heating pump from running continuously ?

I have a Baxi Solo 3PF boiler, this boiler has an 8 minute pump over run incorporated within the system. Rece... [Read more]
Mend boiler heating pcb
2

Heating does not come on again after running hot water tap?

BAXI 105e Instant. Can only get heating to come ON after switching OFF at mains switch for approx 10mins & swi... [Read more]
Mend boiler heating thermostat
2

cannot adjust temp on heating on vokera excell 80 sp?

i usually leave my heating on half way on the tempurature dial, but the radiators are boiling hot so it seems ... [Read more]
Mend boiler central heating pcb
1

Ideal mini c24. intermittent CH, main green flashes normally?

Hi The Ideal mini C24 boiler is about 4-5 years old. Its been working intermittently for the last couple of y... [Read more]
Mend central heating thermostat boiler
1

How can I fix my Potterton Profile 40e boiler?

The hot water side of the central heating system works fine.But no heating,the hall thermostat works,when oper... [Read more]
Mend Heating, Home Heating Systems

How do i stop the time from flashing on the Siemens RDJ100RF?
Mend heating radiators boiler

Worcester boiler dripping water?
Mend radiator thermostat heating

One radiator in a bedroom is always cold?
Mend vaillant ecotec boiler

Vaillant ecotec 831 plus?
Mend boiler heating systems

Remove boiler cover?
Mend Heating, Home Heating Systems

Remove cover off gas boiler?
Mend heating boiler Worcester Bosch

Boiler cycle?
Mend boiler thermostat replacement

Oil fired boiler thermostat?
Mend Worcester Combi Ignition

Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Mend Heating, Home Heating Systems

How to fix my fireplace?
Mend boiler heating lockout

Greenstar 24Ri boiler, fast flashing - can I reset?
Mend thermostat heating siemens

Siemens RDJ10RF thermostat problem?

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...

Related Categories

Mend Convector Heaters
Convector Heaters
Mend Fan Heaters
Fan Heaters
Mend Oil Filled Radiators
Oil Filled Radiators

Topic

Classic FF 250 Boiler Overheating - Help!