Combi Boiler only heating water when the heating is on?

Our Fonderie Sime Combi Boiler will only heat the water when the heating is on. If it is off the boiler will not fire up for the water. The boiler works fine on the radiators. Please help

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sime super 90?

when i switch it on the fan starts up i can hear valves clicking and the ignition clicking but it doesent light i cant smell gas either but i took off the gas pipe to see if gas was getting to boiler ... more

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Sime Friendly Boiler Clock does not work?

Sime Friendly Boiler Clock has stopped working - only ticks now and again very slowly and stops. Therefore I cannot time the heating to come on and off and my bill is huge as I have to leave it on lo ... more

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How do I fix Sime Friendly Format 80?

Unit turns on and powers up for a second but then 'locks off' and then tries again. Pump seems to be working but pilot light will not light. No heat or hot water. A click can be heard just before it s ... more

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sime 80e wont work?

sime 80e ignition sparks and lights pilot light,fan runs,pump runs but will not open main gas valve. cant find a thermo couple think ignition high tention lead sense's some how? their is no voltage at ... more

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Water feed inlet is getting into the central heating system?

The Main cold water feed that feeds the hotwater is getting mixed with the central heating system. Can you tell me what the problem might be. I have a Sime friendly format 80 e boiler.

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sime super 90 how to get hot water with out the rads been on?

if i have got the rads on the hot water is fine as soon as you turn the rads off the hot water goes cold it does not fire up put the rads back on its ok

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how do i fix the pilot light going out on my halstead trio sime boiler?

i've had this problem before and it was linked to the pressure? i cant find an engineer locally as its very old boiler and really need heating and water, can you help? Thanks

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Sime friendly format 80E combi boiler?

Water pressure was slightly low, but topped up. Unable to re-light the pilot light? HELP

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help! the baby will need a bath!?

i have a sime friendly. the central heating works. the hot water doesnt. the pilot light is on but when i turn the hot tap on nothing happens. it has been like this since a friend fitted a new radiato ... more

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how can I fix my sime friendly format 100e?

The heating seems to work ok but can go off intermittantly but the hot water goes cold for no reason & we have to relight the pilot or turn off the water & turn the heating on & off at the controller ... more

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SIME Friendly Format 100e Stop/Start/Stop/Start/Stop?

My combi boiler switches on, fan turns but no flame and so no hot water. Runs for two seconds and switches off.It keeps repeating this cycle as long as the mains power is on. The fan does turn when it ... more

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problem with sime friendly format 80e?

boiler runs for about 15 to 20 mins o.k after it stops for a rest the boiler restarts for about 5seconds then swithces off again then re lights again for 5 seconds this will keep happenning on central ... more

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How do I ignite the pilot light on my Sime Friendly Format 80E boiler?

Switching to the dial with the flame symbol has no effect? And no plumbers availalble until New Year! Help!

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I need help to fix my Sime Friendly Format 80E?

I need help to fix my Sime Friendly Format 80E. It starts up and runs for 10 seconds before stopping completely. After a minute or so it then repeats the process. This results in water or radiato ... more

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how can i fix my sime friendly format 80e?

the boiler will run for about 3-4hr then it switch its self off i have to wait about 30-40 min then i have to swich it of alltogether & back on a gane for it to restart sime friendly format 80 e

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how can i fix my combi boiler?

suspect diapragm in the heat exchanger allowing the pressure to buld up from the normal 1 bar to up tp 3 bar i have to keep draining wate every 1 to 2 days sime freindly format 80e

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which part needs replacing when my sime 80E boiler does not relight?

When the heating is on and i go to turn on the hot water tap my Sime combination 80E boiler does not heat the water, i.e. the flame goes out, or it heats the water and when i close the tap off the hea ... more

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How can I set a heating timer on a Sime 80E Combi boiler??

How can I set a heating timer on a Sime 80E Combi boiler??

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Repair sime combination boiler?

Intermitent fault on sime super combination boiler. Pump running but no power to fan, could it be a pcb board?

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