ferroli modena 80E pressure problem

[krc]

I have no CH or hot water - low pressure warning light on the boiler flashing. On resetting, the boiler ignites for a few seconds then goes out. Pressure rises to about 0.5 bar on lighting - needs to be between 1 and 1.5 bar. How do I increse pressure in the system?
thanks!

 

[Gasguru]

See //www.diynot.com/forums/viewtopic.php?t=38904

 

[krc]

thanks - should have checked FAQ first I know.

Think have overfilled system now by leaving the filling point open slightly. Got it closed properly now but pressure (cold) is stable at just below 2 bar. Have left turned off for now

Also have discovered underlying problem of leak - drips from the boiler! Which explains low pressure in the first place probably. The drips seemed to get worse when the pressure was increaed in the system - to be expected I guess.

Should I leave it for the moment for the pressure to drop a bit and address the leaks seperately another time - perhaps with an engineer? Or is it worth running CH a bit, even though pressure is a bit high?

apologies for rambling - help appreciated

 

[kevindgas]

modena can run with 2 bar cold quite happily so switch it on and use it - try bleeding a rad or 2 if you need to lower pressure

 

[Gasguru]

Watch the pressure gauge - if it starts to approach 3 Bar turn the temperature down or the heating off.

The safety valve will open at 3 Bar causing more problems.

Get the leaks fixed and expansion vessel checked for pre-charge.

 

[tonygerm]

had the same prob over filled blowout at 3bar drip drip drip loss of pressure in need of pressure release valve but not the normal 1

 

[SOLOVEJ]

I have no CH or hot water - low pressure warning light on the boiler flashing. On resetting, the boiler ignites for a few seconds then goes out. Pressure rises to about 0.5 bar on lighting - needs to be between 1 and 1.5 bar. How do I increse pressure in the system?
thanks!

 

[SOLOVEJ]

I have no CH or hot water - low pressure warning light on the boiler flashing. On resetting, the boiler ignites for a few seconds then goes out. Pressure rises to about 0.5 bar on lighting - needs to be between 1 and 1.5 bar. How do I increse pressure in the system?
thanks!

 

[woodward]

Dear friend, my boiler has recently developed the same fault. I have had an engineer who went for the thermistors ( temp.sense), however, it was not the answer. Did you get anywhere with your inquires. Kind regards Rick

 

[kevindgas]

i should hope so or they've been cold and dirty for a YEAR & A HALF!!

 

[woodward]

Sorry, your reply is unhelpful, hav'nt you got anything better to do?

 

[kevplumb]

i should hope so or they've been cold and dirty for a YEAR & A HALF!!

now now kevin

Sorry, your reply is unhelpful, hav'nt you got anything better to do?

good point

kev go and hijack an old post if your bored

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turn the taps till the pressure rises

 

[kevindgas]

Sorry, your reply is unhelpful, hav'nt you got anything better to do?

no & its fun pointing out the obvious to muppets

 

[kevindgas]

kev go and hijack an old post if your bored

what like the OP does??

 

[woodward]

Are we to presume then Kev, that you don't have enough brain cells to smoke a pipe and remember what happened 18 mths ago!