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Ideal c80ff i have had a problem with my boiler - ideal c80ff. it fires up on heating, but only stays on for ten seconds, then goes off and comes back on in another ten seconds and so on. hot water only gets luke-warm. any idea??

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  • Anonymous Jan 30, 2009

    i have a propain heater and the code says my pressure valve is stuck

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  • 104 Answers

Differential is set too close and water temp set too low.dirty coil can have same result -how old is unit?

Posted on Nov 02, 2008

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Hi, I've a fagor feb20e Eco plus combi boiler in


There is a flow sensor in the circuit and it is not sensing the lower flow from just the hot water. When you put it on heat though it does.

May 31, 2013 | Water Heaters

1 Answer

Thanks for that mike, it is a worcester bosch combi 24cdi heating and water can stay on for an hour then everything goes off and the red light flashes. it will come straight back on when reset, but then...


Check the pressure reading, should be about 1 bar when system is cold. Various models in the range of 24cdi. If you do not have a manual, go to,
http://www.centralheating.co.uk/Boiler-Manuals/worcester-bosch-boiler-manuals/worcester-bosch-discontinued-boiler-manuals.
Get the manual for your unit, to wards the end of install manual it has a fault finder, Also has a basic 1 in the user manual. Number of flashes how fast the light flashes which one flashing can all mean different, So get the manual and check, Some parts are easy to fix, as long as you do not touch the gas side the rest is plumbing. Come back if needed.

Mar 05, 2013 | Water Heaters

1 Answer

When you turn on hot water tap the boiler fires up hot water for a few seconds the water becomes cold the boiler flame goes out then fires up again. when the heating on the flames stays on then off then on...


To avoid having a flame in the absence of water flow, the device you mentioned, 'diaphragm,' detects if adequate water is flowing to avoid a dangerous condition. Check on the housing of it for an adjustment screw; it may have a dot of sealant on it since these normally can be adjusted. It sounds as if it is misjudging the quantity of water flowing through and causing the annoying cycling.

Dec 17, 2010 | Water Heaters

1 Answer

I have an ideal standard he30 boiler instaled about 6 weeks ago. the boiler keeps losing presure about half a bar every 2 days if i dont top it up it will trip the fuse on the fuse board acording to the...


All the combis I've come across merely fail to fire if the pressure is not up. not only do they not fire, nothing else works including the pump and in any event the pump should not overheat just on low pressure.
water loss - try turning off the valves on the flow & return pipes [3/4 inch ones] 1 valve per pipe . This will isolate the rest of the system - rads etc Note pressure over a time period. In this mode the hot water circuit will still work but do NOT use the heating circuit
1/2 bar over 2 days is not serious but it should be found
Once you have either mended the leak in the rest of the system or found there is not one, insist on a replacement boiler
In any event having looked at the reasons given for the fuse blowing, I would definitely get a replacement.
These problems should not happen on a new boiler
I list Worcester.-Ariston-GlowWorm-Ideal- and many others who would confirm this

Dec 24, 2009 | Water Heaters

2 Answers

Alpha 240e boiler wont fire up for hot water, will for heating


most likely the diverter valve.. when hot tap turned on the movement of the water through the valve operates a diaphragm which pushes a pin/button//switch to tell the boiler to fire up

Aug 21, 2009 | Water Heaters

1 Answer

On the ideal c95ff the boiler the red neon lockout


overheat stat , does it come back on with reset ?best of luck

Jul 23, 2009 | Water Heaters

1 Answer

Missing instructions for setting timer on boiler


if the timer is built into the boiler there is a small switch on the right hand side. this can be moved up and down to bring the timer on and off.
if you log onto the ideal web site you should be able to download a copy of the programing instructions.

Feb 21, 2009 | Water Heaters

2 Answers

Combi boiler problem


most have an overrun built in for a few minutes. if much longer have you got a room thermostat anywhere to turn down
If it never turns off check the switch which controls ON/TIMED/OFF and turn to timed or off. if it still continues on timed then it's the timer

Jan 22, 2009 | Whirlpool Aquatic Millennium VII -...

1 Answer

Very Hot water coming out of overflow pipe


Is your boiler heating your domestic hot water if so i would turn water off to water maker and see if your boiler pressure stays down below 20 psi. If so water maker is bad. The other thing that could cause this problem would be the boiler pump is out.

Jan 22, 2009 | Protech Systems FasNSeal FSWMKE4 4" Vent...

1 Answer

Fault light flashing 1 flash per second


Prior to writing the above fault I had asked the owner to turn the boiler temp controller , for the heating side, down just a fraction . I was phoned this morning to tell me that the boiler had stayed on allnight with no fault light . After consulting with the plumber who fitted the system it appears that there might not be a room stat ,

Nov 30, 2008 | Bosch Water Heaters

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