If you’re having problems with your Worcester RI, this guide is going to cover some of the most common faults, and potential fixes.
If there’s a cheap fix, this guide will help. If the boiler needs replacing, we can advise on the best and cheapest options. Check out our boiler replacement cost guide here.
Alternatively, keep reading, and we’ll try and uncover a few explanations for why problems are occurring and what to do next.
*Note. Do not attempt to fix your boiler. Speak to a Gas Safe registered repair company. You can do that for free on Rated People.
The green light on a Worcester RI indicates the burner is operating. We’ve been called out to various boilers where the green light was off, but the rest of the boiler was working correctly.
There are two typical explanations for no green light being present.
The most obvious explanation is the LED has failed, and needs to be replaced. If the rest of the boiler is working correctly (switch on a hot tap and you should be the boiler ignite), it’s not essential to change the LED.
The Printed Circuit Board (PCB) is what powers the light on the control panel. If there is a connection failure, it’s likely some or all the lights will stop working. Again, if the rest of the boiler is working correctly, it’s not essential to replace the PCB.
If the PCB is affecting the operation of the boiler, the PCB will need to be replaced. The problem is, a PCB for a Worcester RI is going to cost a few hundred pounds to replace. If the boiler is old, it’s probably worth looking at a more efficient replacement.
Again, the big issue here is without a PCB, you’ll not be able to run any diagnostics if any other problems occur.
The blue light on a Worcester RI indicates that the boiler has power. If there is no blue light, there are a few explanations.
Worcester suggest turning off the boiler, unplugging from the mains and then firing it back up after a few seconds. This acts as a basic reset for an RI boiler.
Same as the “no green light” LED failure explanation above.
Same as the “no green light” PCB failure explanation above.
This is likely to be the case if there are no lights on your Worcester boiler.
There may be a problem with the socket. Check a few other electrical appliances to see if they work, using the same socket that the boiler is usually plugged into.
Worcester RI boilers incorporate a service mode. This flicks the boiler into a model suitable for measuring flue gases during a service. If the service mode is selecting this will give a blue flashing light that pulses or flashes 3-5 times.
Some newer Worcester RI boilers have the service mode button on the front of the boiler. Check you’ve not accidently knocked the switch selecting the service mode.
Older Worcester RI boilers tend to have the service switch behind the control panel. When an engineer services the boiler, they’ll use the tool (usually placed next to the switch) to flick the switch on. When they’ve finished, they should flick it back.
A blue light flashing on a Worcester RI boiler indicates there’s a problem with gas supply, flue blockages or the condensate unit.
The blue light on an RI will flash when it detects no gas supply, or low pressure. This could be a range of things such as a faulty gas valve. As this issue relates to gas, contact a heating engineer straight away.
Another common cause of a blue light flashing is a blockage in the flue. Check the flue for blockages, but also for damage. A gas engineer will be able to replace a flue (where necessarily) cheaply.
This is typical in colder months. A condensate pipe can easily get frozen causing the blockage and the blue light to flash. However, sometimes a build-up of debris can be causing the blockage.
As we’ve mentioned, you can get a boiler repair company to help fix any problems you’re having with your Worcester RI boiler…
Still got a problem? Leave a comment below and we’ll do our best to help you fix the problem with your Worcester RI boiler.