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When a Worcester Bosch boiler gets below a certain pressure, it will lock out. The only exception to this is if your pressure sensor itself is faulty. Any leak throughout your central heating will cause a boiler to show a dropping pressure gauge. This could be a pin-hole in a radiator, a loose connection on a rad valve, or even a weak soldering joint on the copper pipe. Mind you, we don’t necessarily mean a leak in the boiler itself. Remember, too, that a leak is directly connected to the boiler losing pressure… #4 – Your Boiler Is Losing PressureĪs a rule, if your boiler problems relate to a loss of pressure, you have a leak. Sure, it might not be visible, but it’s there somewhere. (Note: Once you’ve fixed the water leak, make sure you top up the boiler’s water levels so that the water pressure is around 1.3 bar)Īlso note that most minor leaks can be stopped using Fernox’s F4 leak sealant for heating systems. #Worcester Bosch Highflow 400 Troubleshooting code#Note that not all leaks are serious, so heating engineers aren’t always needed.īefore you call a Worcester Bosch boiler engineer and spend £100s, it may be worth trying to fix the leak yourself. We’ve created a guide to skip through if your boiler is leaking it should help you diagnose the error code and get it fixed. The boiler recognises this and displays a fault code, likely A281 or EA338. If your Worcester Bosch boiler is leaking, this can lead to low boiler pressure, which will in turn cause the combi boiler to lock out and thus halt your heating system.īoiler leaks usually happen due to blown pump seals. This happens when the seals degrade over time, or experience excessive stress, such as a recent increase in flow rate on the pump. #Worcester Bosch Highflow 400 Troubleshooting full#If the diverter valve doesn’t sound like the issue, you can read more about “Worcester boiler no hot water” in our full guide on the subject. The cheapest place to find a replacement Worcester Bosch boiler online currently is Heatable, where these boilers are usually offered at competitive prices and with 10-year warranties. ![]() If your boiler is out of warranty and needs a diverter valve replacing, it might be wise to invest that cash in a new appliance with a long boiler warranty. You can use our guide to diagnose a faulty diverter valve here it’s typically the problem when the central heating system works but there’s no hot water in your taps. The Fix for Worcester Boiler Problems Leading to No Hot Water Possibilities include a faulty diverter valve, a lack of power, a stuck Y/S-plan valve, faulty PCB unit, or even a problem with the central heating pump. There are a few scenarios that could be behind the problem. It’s a daunting issue when you own a Worcester Bosch boiler: no hot water flowing despite things appearing as they should. ![]() Normal lagging will do, but ArmaFlex lagging offers much better protection. You’ll need to insulate the condensate pipe using lagging. Next, you want to stop this from happening again. This should take care of the EA229 error code, and your Worcester boiler should go back to working normally. If it’s ice, like we mentioned above, you can thaw the pipe out by pouring warm water over the frozen end. #Worcester Bosch Highflow 400 Troubleshooting how to#How to Fix a Worcester Bosch Boiler with Blocked Condensate PipesĬheck the condensate pipe for obstructions. If you experience this problem, your Worcester Bosch boiler will display an EA229 error code. Unfortunately, a blocked condensate pipe is one of the more common Worcester Bosch boiler faults - particularly in winter, if the pipe is exposed to the elements. This pipe vents harmful gases from your property. The Top 10 Common Worcester Boilers ProblemsĬondensing boilers, like all modern ones including those made by Worcester Bosch, have a condensate pipe. For your convenience, however, we’ll list 10 of the most common Worcester Bosch boiler problems below. You can find the cause of each fault by referring to your boiler manual. #Worcester Bosch Highflow 400 Troubleshooting series#Various boiler issues are indicated by alphanumeric error codes, all which start with “EA” and conclude with a series of numbers. With Worcester Bosch boilers, problems appear as fault codes on your control panel display. What Happens When You Get a Worcester Boiler Fault?
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