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Re: Boiler won't start
Near one corner of the gas valve is a slottedplug.
It looks like large screw headremove the plug just like any screw. This lets you access the gas pressure adjustment screw.
Usually no more than one half to one full turn is needed. (clockwise to increase pressure)
It is important that you not have to much Gas pressure as this will cause overheating and premature heat exchanger failure.
The best thing to do is check the pressure going into the gas valve, and also coming out. Make sure the inlet side of the GV is not partially clogged where the pipe comes in. (especially if you have copper pipe with natural gas)
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Is there gas cause most of the time it won't ignite cause there is no gas. What you can do is light it your self and if it lights that is good and if it stays light than there is has sometime you have to light it your self
The Beckett HeatManger is a microprocessor controlled device that will manage the on/off cycles of your boiler. Every time your boiler has to shut down and then restart your have just lost a bit of efficiency. By reducing the start/stop cycles of your boiler you not only reduce fuel consumption, but you also reduce wear on the parts of the boiler and emissions coming from your boiler. Your burner burns very inefficiently on startup and shut down. When I have my combustion analyzer on a burner it goes crazy with bad gasses right after shutdown.
If you have a fuel oil or gas fired boiler and you are wondering how you can save money on your heating bill without replacing your boiler then I have good news for you! By adding a simple device to the burner of your boiler you can be saving at least 10% in minutes
With this control if your thermostat requests heat and the HeatManager has sensed that there is heat available in the boiler, it will not start the burner until the heat is used up. When the burner is running, the HeatManger will optimize the runtime to match the boiler output to the load.
The unit is very easy to install. It is mounted to the junction box under the relay and wired into the normal burner relay wiring. There are a couple of sensors that need to be attached. One senses the supply water temperature for heating, coming out of the boiler and the other senses domestic hot water boiler supply temperature.
Even if you would decide to get a professional to install this unit you will be on the road to saving big dollars while only spending few hundred bucks. Then when the price of fuel oil and natural gas begins to rise again, which it will this winter, you will be getting even more savings from your small investment.
Saving money is always a good thing, but when you can combine saving money with greater comfort than I would call that a great thing!
Difficult to get too specific without knowing if you have gas or oil. Also, I am going under the assumption you mean the burner shuts down, not the whole heating system. That being said, all heating appliances have whats called a safety curcuit. Each control has the ability to shut down if certain critera are not met. There is a sensor that senses light down the blast tube. If no light is sensed in a predetermined time period, then the sensor cuts power to the burner. This stops delivery of fuel so if it does ignite you wont blow up. (I suspect that the ignitor and burner shut down simultainously.) It may be the sensor (cad cell eye) is doing its job, however why is the question. Could be a number of things including the fuel delivery, ignition, improper air adjustment, etc. No qualified professional should diagnose a problem unless they are in front of the appliance. I recommend you find a licensed qualified heating techician. Hope this helps.
Most of these boilers don"t have a permenant pilot light they have electronic ignition that lights the burner when you are calling for heat or hot water, is there enough water pressure in the boiler ( there is a small gauge on the bottom r/h side of the boiler the needle should be sitting at between 1 - 2 if not enough pressure the boiler won"t light )
it also sounds as though the pilot injector could be blocked so when the boiler comes on it extinguishes the pilot & then when the burner goes off boiler shuts down, or also the pilot rate maynot be set right, so when the main burner kicks in it robs the pilot of the gas it requires.
It could be that, or there is lack of ventilation for the boiler, so you get flame lift off when the boiler fires?