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F70vaillant boiler fault codes - Water Heaters

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Hello. I have a vallient ecomax 828 which is displaying the F40 fault code after a power cut earlier today. The boiler sounds like its running, but nothing is happening.


F40 is a fan fault. this fault normally comes up when the fan doesn't turn, you need an engineer to fix this, i could tell you how to fix it but its best left to a gas engineer

Feb 05, 2018 | Water Heaters

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How do i reset the thermal cut off switch on a vaillent boiler?


Hi, what model Valliant and are there any fault codes showing?

Feb 21, 2015 | Water Water Heaters

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Ideal icons boiler fault code h1


ideal icos
H1 fault
FLOW THERMISTOR
part number 170917
check wiring to flow thermistor NOT loose first

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Code f28 what isit?


According to the user's guide, the fault code means that the boiler failed to start after 5 attempts. Here is the manual where I got the information. I would confirm the codes with your particular model. I am presuming that the codes would be standard for all their models. Source(s): http://www.vaillant.co.uk/stepone2/data/…

Mar 10, 2010 | Water Heaters

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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Ariston A01 fault combi boiler


its not definately the pcb. change the detection sensor first( £3.20p). if this doesnt fix a01 fault then change the main pcb(£145).

Oct 29, 2008 | Water Heaters

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