Replace a diverter valve?

How do you replace a diverter valve on a ferroli HE31C

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I have a ferroli optimax he 31 c boiler ?

The heating just seems to turn on and off randomly having not been programmed.Any idea why ?

How can i ignite the pilot on my Ferroli combi 77 ff?

I have the above boiler and i cannot get the pilot to ignite,nothing happens when i try,no clicking etc.I've checked the pressure eg but i'm at a loss.

Ferroli Optimax HE31c a26 problem?

I'm having A pressure issue. The system pressure will increase to over 2-3bar and shut off from a starting position of 1.2bar. If I start from a position of a half a bar then I can only set my tempera ... more

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Ferroli Optimax HE31c a26 problem?

I'm having A pressure issue. The system pressure will increase to over 2-3bar and shut off from a starting position of 1.2bar. If I start from a position of a half a bar then I can only set my tempera ... more

Boiler not working?

I came home to find my ferroli he boiler flashing F37. The guage was just below 1. I followed the instructions to try to refill the boiler. Didn't hear any water and guage didn't rise. Now the boile ... more

Hi how to increase the water pressure on ferroli optimax 25C?

Hi how to increase the water pressure ? I’m getting F37.

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Ferroli DOMIcompact F24B: Unknown error?

I just came back from a couple of days away from home (boiler not used for 4.5 days), and my boiler is showing error message "F-", which is not in the manual. Neither heating nor hot water is working. ... more

ferroli plus 31c has a code b2 any ideas?

code fault b2 on my ferroli optimax plus 31c

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why aren't my radiators getting hot on my ferroli optimax he31?

Hi my boiler is switched on and the radiator icon is indicating that the radiators are on but they are not getting hot, also my hot water temperature is fluctuating.Help!

Ferroli Boiler Optimax HE 31C?

Flashing F21 what does this mean and can I fix it without having to call an engineer?

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Connections on Ferroli F24 Gas Valve?

Anyone know the connections and expected voltages on the gas valve VK4105G fitted on a Ferroli boiler. Mine is not operating correctly and I want to determine if the fault is with the valve or the sup ... more

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I have a ferroli Modena 102 Modena boiler?

My central heating light on control panel keeps flashing and boiler will kick up then go of after 2 minutes but also my thermostat doesn't work is this the problem many thanks

I have a Ferroli FF 77 the pilot light has gone out will not stay on ?

when i release the gas button the pilot will not stay on

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Ferroli Hawk 2 - Air Pressure switch?

There are two flexible pipes connected to the Air pressure switch(APS). Top one clear, bottom one red. Central heating(CH) works with both connected. And the hot water works when the CH is on. Bu ... more

how can i fix my ferroli domicompact f24 b?

f 5 display code is flashing pump is working but the fan is not running

Ferroli domicondens he26 C fires up but doesn't appear to rectify ?

Domicondens 26he C keeps showing fault code 51a , fires up for approximately 10 secs but continues sparking , not rectifying

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Heating coming on all times?

HI I have a new Ferroli Modena C HE boiler My thermosat is set to come on twice a day, 5-54 am off 6-15am on 16-30pm off 22-00pm Lower Temp set at 15degrees & higher tem at 23 and I have set it t ... more

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I have a Ferroli domicondens he 26 c heating not working?

I have a Ferroli domicondens he 26 c the hot water still works but the hearings not even if you over ride it to on. The pressure says its at 1bar. But I desperatly need to fix it as I have a 3 week ol ... more

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How can I get my ferroli boiler to work?

My ferroli boiler is flashing 26 no hot water and no heating had gas man to it today and he replaced the sensor but still not working I had to wait over a week to get someone out can't wait that long ... more

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