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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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Why the boiler often turns on and off - reasons and solutions

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • Weil McLain Boiler Troubleshooting - Common Problems and

    3. The Boiler Cycles On and Off Frequently. There's something amiss if your Weil McLain boiler is turning on, running a short cycle and shutting off. The clues are hearing it cycle on and off, or you might first notice your home's temperature being more than a few degrees higher or lower than the thermostat set point. 4.Get Price

  • Why is my boiler making noises? - Viessmann

    This is when problems can start. If the boiler's heat exchanger contains debris, the boiler can overheat and generate steam, a process called kettling. This is why it begins to make a whistling noise, much like a kettle when it comes to the boil. When kettling is left, the problem can get worse and your boiler may eventually break down Get Price

  • Problems That May Occur with the Boiler Circulator Pump

    Jan 29, 2015 · Circulator won't turn on – reasons a circulator won't turn on include issues with your thermostat, unequal settings between the circulator's aquastat and the boiler's thermostat and a dead or frozen pump motor. Circulator runs but heat is low – this can be due to a broken or damaged impeller inside the pump.Get Price

  • Weil McLain Boiler Troubleshooting - Common Problems and

    3. The Boiler Cycles On and Off Frequently. There's something amiss if your Weil McLain boiler is turning on, running a short cycle and shutting off. The clues are hearing it cycle on and off, or you might first notice your home's temperature being more than a few degrees higher or lower than the thermostat set point. 4.Get Price

  • Crown Boiler Troubleshooting [7 Easy Solutions]

    Your boiler will keep going on and off if the air vents aren't working, the pressuretrol line is blocked, the pressure is too high, the steam traps aren't functioning, your boiler is too big, or the thermostat is in the wrong place. So, let's get down to the details so that we can diagnose your boiler's short cycling issue together.Get Price

  • 5 Common Boiler Problems & How To Easily Fix Them!

    Oct 15, 2021 · If your boiler powers up perfectly well continually trips or switches itself off, this may be as simple as the low pressure we discussed in the previous paragraph. Check your pressure gauge, and if it is below 1, take the same action as we profiled there. There are, however, a number of potential alternative reasons.Get Price

  • Why does my boiler keep turning itself off - WarmZilla

    Why Your Boiler Keeps Locking Out | DoItYourself.comGet Price

  • Malfunctions of a gas boiler Junkers: error codes and

    There can be many reasons why the boiler does not recognize the flame: from a gas tap to the incorrect position of the coding plug In such a situation, you can only try to light the stove or unscrew the gas hose of the boiler (with the tap turned off and the boiler turned off) and try to open the gas briefly.Get Price

  • EA Error in Junkers Boilers -

    The suggestion is that you turn it off, leave it off, and don't turn it on again until a technician has had a look at it. There could be problems with the burner, but also take note that if you use butane and live in a cold area, you should think about using propane instead as butane can cause problems similar to the one you've mentioned.Get Price

  • Our Furnace Makes a Banging Noise When it Shuts Off - We

    Oct 31, 2020 · Europeans tend to refer to a furnace as a boiler. Don't be confused by this as just like a furnace, a boiler heats your house. The room temperature must drop a degree or 2 maybe 3 before a boiler/ furnace normally kicks on again. Banging noise when a furnace turns off. Your furnace works with ductwork to deliver heated air around your house.Get Price

  • What is Boiler surging? -

    Mar 11, 2020 · Reasons why steam boilers flood, and where to look for solutions. Dirty water, a too-high pH, overfiring and improper near- boiler piping can all cause the boiler's water line to surge up and down. If there's an automatic water feeder on the boiler, it will open and close each time the water line rocks.Get Price

  • Why is the percentage excess oxygen used on a combustion

    Answer: A small amount excess oxygen (=excess air), typically ~ 5%, which is practically free, can insure complete combustion of the fuel (not free) in a boiler or furnace, avoiding the possibility that there might be a small amount of residual CO, which would be …Get Price

  • Boiler pressure keeps dropping ? What to check - Flexiheat

    Mar 14, 2019 · You should only refill your central heating system when the system has cooled down. You simply open the valves up, slowly and wait for the pressure gauge on the boiler to rise to 1.2 Bar to 1.5 Bar maximum (please consult you boiler manual for the recommended pressure that they stipulate).The process is then finished off by closing the valves, thus sealing the …Get Price

  • Boiler Timer Not Working? Here's Why! | Heating Wise

    Jun 08, 2021 · That's why we've taken a look at the most common reasons for common boiler timer faults below. More often than not, they're not "faults" as such, but easy fixes! You've forgotten that the clocks changed: Although certain boilers account for the changes between Greenwich Mean Time and British Summer Time, many older models do not.Get Price

  • Why Are My Boiler Controls Not Working?

    Dec 14, 2020 · Solutions Check the timer settings . Visually examine the timer settings. As we already mentioned, the timer clock can get confused because of the various reasons – seasonal change, power outage, recent electrical works – anything …Get Price

  • Top 10 Most Common Boiler Problems | Boiler Guide

    Consider typical problems and solutions. Inappropriate power. If the boiler often turns on and off, there is an excess of power. Yes, yes, excess is the same problem as disadvantage. A powerful device in a small room quickly warms up the area. Frequent shutdowns lead to wear of components, parts and rapid breakdown.Get Price

  • When your boiler's pressure is too high: 6 tips for

    As soon as you notice that your boiler's pressure is too high, you should rectify it immediately.There are many reasons why boiler pressure can rise above the normal 2 bar level. However, sometimes it can rise much higher than this and rise above 3 bars (the area where your boiler's pressure gauge starts to turn red).In these cases, you should find a solution quickly …Get Price

  • Boiler keeps losing pressure: 7 possible reasons why - DIY

    Jan 25, 2018 · Faulty expansion vessel. Another reason why your boiler keeps losing pressure may be the expansion vessel. On a combi boiler, this component is usually inside the boiler's casing. Its purpose is to accommodate the expansion of the water when it's heated. The expansion vessel consists of two internal compartments divided by a rubber diaphragm.Get Price

  • Why Is My Boiler Losing Pressure? | Boiler Advice | Vaillant

    The most common reasons for a boiler to lose pressure are: Releasing air or water from a radiator when bleeding it. A leak from the appliance or on the system most commonly from radiator valves or system components. The circuit of pipes and radiators connected to the boiler system can corrode or loosen over time, eventually allowing water to Get Price

  • Boiler Circulation Problems Troubleshooting #1 Step-by-Step

    This should be located near the boiler in the near boiler piping. I would check the aquastat to make sure it is engaging the circulator pump as the aquastat has a relay that turns the circulator on when there is a call for heat and the temperature inside the jacket is the right set point temperature according to what the aquastat is set for in Get Price

  • Why do I keep having to reset my boiler? - Living - Your

    May 13, 2020 · A boiler lockout happens when your boiler shuts down due to an issue within the system. Resetting your boiler is usually the first solution for a lockout. However, you must bear in mind that this will not solve the underlying issue with the boiler, you will need assistance from a qualified engineer.Get Price

  • Triangle Tube Prestige Boiler Problems, Solutions

    Jan 04, 2012 · On a fixed burner, it must cycle more often. Each time it cycles off and on, it loses some efficiency. Controlling it with some anticipation (i.e., turning off before the house temp is reached while allowing the latent heat to finish the job) can help, and there are devices that can be setup to do that as well.Get Price

  • Why the gas boiler shuts down: reasons, what to do

    Why do I have to keep hitting the reset button on my boiler?Get Price

  • Boiler Overheating: Signs, Causes and Solutions

    Jul 10, 2020 · If it's limescale on the heat exchanger, the engineer will clean it up with a special descaler for boiler heat exchangers.The procedure is not simple, it requires a lot of measuring and water draining. If it's a blockage, the engineer will remove it.If it's a central heating build-up, they will most probably powerflush your heating system.If it's a condensate blockage, they would Get Price

  • Boiler Overheating? Signs, Causes and Solutions | Heating Wise

    Dec 14, 2021 · The main reasons your boiler may be overheating are: High pressure – this is the main reason why a boiler overheats, and the high pressure is usually the symptom of another system malfunction, including leaking pressure relief valves. Build-up of limescale – limescale can form anywhere there is water, especially if you live in hard water Get Price

  • Turning your boiler off at night? You might be losing

    Timer. All modern boilers come with a timer on them, usually on a separate panel that's wired up to the boiler itself. You can set the on and off times for every day of the week. So, you can set it to switch off at, say, 11 p.m. every night and come on at 7 a.m. every weekday (and 8 a.m. at weekends). The timer will override the thermostat Get Price

  • Reasons Your Boiler Isn't Giving You Heat | Bartels

    Jan 07, 2015 · Reasons Your Boiler Isn't Giving You Heat Boilers are one of the most dependable ways to provide warmth to a home through a long winter. Thanks to their small number of mechanical parts, boilers suffer from a reduced level of wear due to use, and that means an extended lifespan and few repair issues.Get Price

  • Top 8 Common Boiler Problems (and Solutions) - Metro eco

    Jun 10, 2019 · 7. Boiler keeps turning off by itself 8. Pilot light has gone out. 1. Frozen condensate pipe. When the temperatures drop in winter, one of the most frequent boiler issues is a frozen condensate pipe. Fortunately, it is one of the most simple issues to resolve. Firstly, you should turn your boiler off and then locate your condensate pipe.Get Price

  • Why Your Boiler Fires Up Then Turns Off | Boiler Guide

    A faulty thermostat can be the cause of your boiler short cycling; this means your heating system itself might not have any issues at all. The first thing you should check when trying to pinpoint the problem of the short cycling is your thermostat.Get Price

  • Why Does My Boiler Keep Turning On and Off? | Bigham's

    No Heating! Boiler Lockout light? - Goff PetroleumGet Price

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