computers and TV's had to be replace because of Hi, I hope that some kind soul out there might help me with a Problem with a Worcester 24cdi combi boiler. will run correctly. This is generally a good rule of thumb to follow. We turned the furnace main switch off then on, reset house circuit breakers, and pattern keeps repeating. Yes it has a faint red light on the reset button. My money would be the boiler and not the thermostat, but you could take the communication wires out of the thermostat and twist them together for awhile to see if your boiler stays on. Janine. Then I will give this my full attention. As soon as the heat exchanger cools down, though, the burners turn back on (because the thermostat is still calling for heat) and the process repeats. An OFTEC certified engineer will examine the boiler, check that the nozzles are clean and replace any dirty or faulty filters, and ensure your oil tank is in good condition. about 70 2. This could be a problem with your boiler, it could be your system is gunked up, or it could be your thermostat commanding the heating system to turn on and off. - 1. Reply Reply Author. 2. for your oil pump) In the event you can not get the parts and need to get I have a Peerless Oil Boiler WB-110-WPCT. However, the boiler is still firing up intermittently, more than an hour and a half later and the pilot light keeps flashing green and after a while, it would turn amber (as if to switch off) but then it flashes green again. It may seem odd to want to stop your boiler from doing what it was designed to do. One house I owned had a separate oil fired water heater, so I shut the furnace off every summer for 26 years, no problems. Wednesday 4th May 2011. 127 months. soot, all of this could have been prevented if I have been advised that the boiler I would like, a Worcester Bosch 34cdi will be over sized for my 3 bed roomed house with 1 bathroom. damage to your home, and there are health issues with oil, then the transformer decides to work, now you have an If your boiler is an all-in-one combi boiler and it is turning itself on and off every now and again, this is likely to be what is called its ‘Pre-heat’ function. you lose your prime (in most situations) 3 your filter can become clogged I recently had my systems flushed with many of the radiators installed with TRVs as well as an old rad removed upstairs and replaced with a new bigger rad (with pipework carried out under floorboard). I switched off the emergency switch then turned it on again and it - Answered by a verified Plumber. Unfortunately, this means that these homeowners misunderstand how this feature works. oil filter, (the right replacement for your filter) A new strainer (the one plumbers talk forum. The gas engineer says a Worcester Bosch 30si would be more appropriate. A boiler is not like a computer, you can’t fix 99% of problems by turning it off and back on again. You are going to make the problems worse by continuing to reset the burner. We have a 3 year old Lennox Furnace and returned home to find the house very, very cold. I have an oil boiler, when I turn the central heating thermostat on the heating comes on fine and I hear the boiler fire up, after some time the boiler shuts off then comes back on again a few minutes later. On the boiler it reads around 12-15 psi when it turns off, which I understand is good, but the temp is 190 and it seems to go off when it starts going over 190. how to get your newer burner out of lock out mode, you will need to speak to me rdmingo Member Posts: 9. 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