How to mend ... Stat Boiler Pump

Boiler cycling - 10 seconds on 10 seconds off?

Myson apollo 30si, CH only, boiler thermostat on low, no room stat, radiator stat's on 4 radiators - 2 without... [Read more]

worcester juinior 28i boiler?

radiators heat hot okay pump works alright after 15 mins light flashes 4times per second boiler struggles t... [Read more]

how can I fix my Glow-worm 115B FF?

boiler switches on and heats water (gravity feed) but will not switch on central heating. stat is working wa... [Read more]

hot water but no central heating on cb28 alpha combi?

checked micro switch and removed and cleaned diverter value, boiler runs on heat and water.and stops on boiler... [Read more]

heating still wont work ?

i have replaced the programmer the 3 port valve and the room stat and the heating still wont work the boiler a... [Read more]

how to wire a thermosat?

thanks Ian, there is not much of a wiring centre, all the cables come to the back of the landis controller, th... [Read more]

Pump runs continuously?

I have a Potterton Suprima boiler with a Megaflow unvented mains pressure water heater. The pump has been runn... [Read more]

Glow Worm KFB 50 will Kettle noise after being for a long on time?

Over heating bubbling noises when after it has run for a while and room stat turns it off (only now the pump h... [Read more]

myson orion pump over run stat?

I have a myson orion system boiler ,when the heating has been on and turned off by switch or room stat. The bo... [Read more]

faulty Ideal Turbo2 boiler?

The dry fire thermostat tripped a few times over the last week. I replaced the thermostat but after a day or t... [Read more]

Potterton / Profile Prima 40e boiler not fire up?

Allo: My old conventional Potterton / Profile Prima 40e boiler does not always come on. It sounds like it h... [Read more]

Potterton Profile 80e cuts out after 15mins ?

the boiler fires up from cold on demand from timer and room stat. It then runs for 10 -15 mins and the main bu... [Read more]

Vizo boiler fault. Burner cuts out?

A few days ago my 3 yr old combi started playing up. The burner was cutting out while the stat was still deman... [Read more]

heating?

ClassicFF boiler periodically kettles and occassionally pumps over. New pump fitted, Cylinder stat, roomstat ... [Read more]

Heatslave 20/25?

Quite often the pump on the boiler cuts out and so the central heating goes off. Click the room stat to off an... [Read more]

Back boiler change to oil boiler?

I currently have radiators in all rooms & hot water run from a back boiler behind my coal fire. The system has... [Read more]

How can I fix my Ideal Classic HE15 condensing gas boiler?

When the programmer has instructed the boiler to turn off on the time sequence, the boiler still ignites for 1... [Read more]

Potterton Profile 50e tripping?

I have a Potterton Profile which runs fine most of the time, installed 1997 running on natural gas. Every n... [Read more]

Micron 40ff heating up then cooling right down before starting up again. ?

Please help I have a Micron 40ff with radiators with TRV's & a room stat, I replaced the old style PCB about 3... [Read more]

how can i fix my potterton suprima 40?

the boiler fires up correctly but then shuts down on the boiler stat after about 3 minutes, the pump is workin... [Read more]