Shaun Dunn You don’t want to be caught without hot water or heating, and it is hardly a pleasant surprise. More often than not, the problem makes itself known at an inopportune time, like when you are about to have a shower or the house has begun to get chilly.
If your boiler seems to have given up, don’t jump to the conclusion that it has broken down. A simple reset is well worth a go first. Worcester units have built-in safety mechanisms to shut things down if they sense anything amiss. While that can be a bit of a shock, for the most part, it is nothing more than a minor matter, not a serious fault.
The boiler is only looking after itself; a lockout could have been triggered by a small glitch, a momentary loss of power, or even a dip in pressure.
Resetting your Worcester boiler is usually the fastest way to get the heating back on. Yet it is just as vital to make sure you know what caused the lockout in the first place, you will be left with the same trouble on your hands in a few days’ time.
Why Your Worcester Boiler Needs Resetting
There is never a Worcester boiler that will lock out for no reason. You can be sure it is reacting to something it deems either unsafe or not quite right.
You will often find low pressure to be the culprit. The majority of systems have to be in the region of 1 to 1.5 bar; go under that, and the boiler is apt to shut itself off. This could be gradual or more abrupt if there is a leak in the system.
Then you have temporary faults. These present themselves as an error code or the unit simply halting. It may be a case of the ignition failing once, or a momentary blip with the airflow or circulation.
Don’t rule out a power cut either. A brief loss of electricity is enough to put a stop to the cycle, and you’ll have to do a manual restart.
In the winter months, a frozen condensate pipe is a frequent problem. If the wastewater pipe is iced over, the boiler won’t let you run it and will lock out. Take last night, for instance: you might have been in bed with the heating on fine, but when you get up, there is nothing. The cold has set in, the pipe has frozen, or the pressure has slipped, and the boiler has done its job and turned off.
Sure, a reset will get it going again for a while, but unless you put right what is causing it, it won’t hold. After all, a reset is not a fix for the issue at hand.
Where to Find the Reset Button on a Worcester Boiler
To reset a Worcester boiler, start by finding the control. With the majority of Worcester Bosch units, and Greenstar models in particular, you will see the button on the front panel of the control; look for one that is plainly labelled “reset” or has the circular arrow icon.
If you have an older boiler, it is simply a matter of pressing and holding the physical button. Newer digital ones are different: the reset option is in the display menu, and you’ll use the dial or buttons to make your selection.
Since every model has its own way of doing things, a quick look at the manual won’t hurt if you can’t put your finger on it right away. It is far less of a hassle when the heating gives out, and you already know where to go.
Step-by-Step: How to Reset Your Worcester Boiler
For the most part, a boiler reset is simple enough, provided you follow the correct order.
Start with the basics. Have a look at the pressure gauge; if the reading is under 1 bar, you are unlikely to get it to restart. Make sure the unit has power and that nothing has tripped.
When you are ready, press the reset button and hold it for 3 or 5 seconds. The display should change to indicate the boiler is starting up again. Let it have its way for a couple of minutes, and you will probably hear the fan or pump come on as part of the sequence. After that, see if your radiators are putting out heat and the hot water is back on.
Often, that is all there is to it. A quick reset will put things right after a minor fault or a power blip, and you’ll be back to normal in no time. But if you have to do this over and over, you can be sure there is something more to it.
What to Do If the Reset Doesn’t Work
When you can’t get your boiler to reset, don’t be in a hurry to call an engineer; there are some things you can check first.
Go over the pressure one more time. If it is on the low side, the boiler will not run as it should, and the system will have to be repressurised.
Have a look at the display for any error codes. With a Worcester boiler, these are put there to point to a particular fault, so they are useful for getting to the bottom of it.
Make sure you have gas coming in. If the rest of your gas appliances are out, the problem is probably not with the boiler.
Another option is to cut the power at the mains for a few minutes and then turn it back on, which will, at times, sort out a minor electronic glitch.
But if you have done all that and still have no luck, then the problem is something more than a simple reset can fix.
Common Mistakes to Avoid
You will often see people make the error of hitting reset over and over without looking into anything else. It gives you the impression you are making headway, yet the real problem is still there.
Then there are the pressure issues, which tend to be ignored. Low pressure is perhaps the easiest fault to put right, yet the most neglected.
Don’t go about opening up or mending internal parts if you don’t have the qualifications to do so. A boiler is a complex piece of equipment, and improper handling can only make things worse.
Use a reset when you need to, but as part of a proper check, not as an end in itself.
When to Call SD Plumbing & Heating
When a boiler won’t stay put after you have reset it, or you are seeing the same error codes pop up, you need to get a pro in. The same goes if you have made a few attempts at a reset and are still without heating or hot water, or if there are leaks, odd noises, or the pressure is on the fritz.
We see this sort of thing all the time at SD Plumbing & Heating. In some cases, it is an easy fix; in others, we have to do a more in-depth diagnosis to find the root cause, but we will have your system back in order one way or another. For fast, dependable repairs when your boiler is uncooperative, give us a call.
Preventing Future Boiler Lockouts
There is no better way to head off trouble than with regular servicing; it lets you nip small things in the bud before they turn into a breakdown. You should also make sure the pressure is where it should be, as that alone can stave off a lockout.
Then there are the seasonal matters. A frozen condensate pipe is a winter staple for us, so insulating it is wise. And if you hear something you don’t like or notice the pressure dipping, pay attention. That kind of preventative care means your system runs as it should, and you won’t be left having to do emergency resets.
A Simple Fix, When Used Correctly
For a minor fault that has put your Worcester boiler in lockout, there is no quicker way to get the heating back on than to reset it. You will find the process is simple and fast, and for the most part, it does the job.
That said, if you find the problem is persistent, you know there is something more fundamental at play that needs to be looked at.
If you are still having trouble, make an appointment with SD Plumbing & Heating for a repair. We can also put in an annual service for you; it is one of the best things you can do to ensure your heating is dependable come winter.
