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Posted on Jan 02, 2017
just had same problem. this apprently happens if the power supply has been interrupted or you switch the power on and off.
• The boiler runs for 15 minutes at minimum heat output to fill the condensate trap, the display (K) alternates between -II-” and the boiler flow temperature. This occurs every time the mains supply has been interrupted.
Posted on Jan 07, 2009
SOURCE: bosch 24i junior combi boiler
Hi, Have you determined if you have power to your ignitor first of all? The boiler control light is flashing 4 times due to an error, do you have a chart that tells the codes on this boiler? The first thing I would check if you have a meter, if not try and get one is to find out if you have power at this ignitor module. If you do, more then likely the ignitor is faulty if its calling for heat. If you have no power, you would need to go back to find what supplies power to the ignitor. It should be the control stat that does this. Its a process of elimination at this point to track down why the module/ignitor is not firing on a call. If you have any kind af manual or schematic to look at, this will come in handy to find out what is going on, and what has failed in the system with the 4 flashing code lights. Try and get a meter and check for power to narrow these controls down, you may just have a faulty ignitor as they are normally the first part to fail. Please keep me posted.
A/C, Heating, & Refrigeration Contractor.
PS, check all of your safeties as one may have the ignitor locked out.
Posted on Sep 28, 2010
SOURCE: The boiler stopped twice during
Good Question!-- Let's see if we can figure this out--
What kind of fuel are we talking about? - Gas or Oil?
Any clue as to WHY the boiler stops?--
Can you see a water level, or a temperature or a pressure setting/ gauge?
Tell us what some of these readings are--
If it is gas-- how does ignition take place?-- Spark, or ignitor ignition?
Where is the Reset button?-- is it on the burner control-- or the water level control?
Tell us more--
Posted on Jan 17, 2011
SOURCE: need to know how to
its the vavle 3 one in from the left its a 15mm pipe and there will be a iso vavle what you can turn with a flat point screwdriver and that will turn off the main water to the boiler these are the manual
Posted on Jan 23, 2011
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