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EA fault codes or EA error codes according to Worcester Bosch boiler manual indicates that the flame hasn't been detected. The flame not detected fault arises when no ionisation current coming from the flame to the worcester boiler electronic circuit is faulty so the boiler goes in a lock out state.

Hereof, what does a flashing red light mean on a boiler?

The red light on the display panel indicates a fault with your boiler. The way in which the light is flashing will help indicate the problem. For example, on a Vokera Compact you might see an A01 fault code with a red flashing light, which indicates there has been a failure in the ignition sequence.

Furthermore, what does EA 227 mean on a Worcester boiler? When the EA 227 error code appears on Worcester boilers it means that the flame hasn't been detected. The flame is needed to heat the water before it's circulated to either the central heating system or taps for domestic use.

Consequently, what does u9 mean on a boiler?

Hiya, U9 is in fact showing a temperature of 109 degrees as measured inside the boiler. U is 10*, The boiler has massively overheated. It's either a) a faulty pump not working b) a restriction in the plate heat exchanger c) faulty pcb not sending power to the pump.

What's wrong with my Worcester boiler?

Boiler keeps making banging noises (A41) Hearing banging sounds from your boiler is an indication of kettling, which is generally caused by limescale buildup, a faulty thermostat or inadequate water pressure. This can cause ongoing problems with the central heating system.

Related Question Answers

How do I reset my Worcester boiler?

In the event of a fault, the blue mains indicator light will flash if there is a fault. To reset the boiler turn the Central heating temperature knob anticlockwise to the “RESET” position and hold for approximately five seconds and then turn the knob back to the original temperature setting.

How do I reset the SE code on my Worcester boiler?

To reset the code follow this steps;
  1. Press and hold Spanner button until it becomes orange.
  2. Press and hold Eco button until 5A displays.
  3. CS press and release Eco button.
  4. press and release CS.
  5. Hold Until brackets appear then release.
  6. then press spanner button.

What is siphon fill program?

Siphon fill mode. The boiler will run at a low burn for about 15 minutes to fill the condense trap. This happens after the boiler has been turned off, if it hasn't been used for a day or so, and if the control knob has been turned down and back up.

How do you bleed radiators?

Summary: How to Bleed a Radiator in 10 Easy Steps
  1. Turn on the central heating.
  2. Feel all the radiators in your home.
  3. Switch off the heating.
  4. Wait for the radiators to cool completely.
  5. Grab your supplies.
  6. Find the bleed valve.
  7. Loosen the bleed screw.
  8. Wait for the hissing to stop completely.

How do I reset my Worcester Greenstar 30cdi?

Resetting a Worcester Greenstar boiler is very easy to do. In most cases, you will simply need to hold the button marked 'reset' for three seconds. In some models you may see a reset light at the end of the temperature dial.

Should the pilot light always be on in a boiler?

The pilot light is the blue flame that always stays lit under your boiler. When heat is required, the pilot light will inflame that gas and send it to the burners. The pilot light must always stay on or gas will easily escape. If the pilot light keeps turning off, then your boiler is not working.

Why is the light flashing on my boiler?

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.

Why is my boiler reset button flashing?

Slowly flashing blue light, and a flashing lockout reset button – This usually means that there is a lockout with the ignition. Make sure that there is gas present and that your boiler is at the right pressure levels. Next, you want to check the Combustion CO2 level.

Why does my boiler light keep flashing?

Another common cause of a blue light flashing is a blockage in the flue. If your boiler flue doesn't have a flue guard then a blocked flue could prevent the boiler from igniting. You'll need to hire a Gas Safe engineer to unblock the flue and get them to fit a flue guard to prevent it from happening again.

How do you reset a boiler?

Locate the boiler reset button - if it's not easy to find take a look in the boiler instruction manual - and push it in, holding it there for 10 seconds. Once you've released the boiler reset button, wait for the boiler to ignite - this could take a few minutes.

How do I fix the red light on my boiler?

A simple reset could be enough to stop your Vokera boiler from flashing red and get the unit working to heat your home and hot water again. To reset your Vokera boiler, move the mode selector switch to the 'OFF/RESET' position and then move it back to either 'hot water only' or 'heating and hot water'.

What does a green light mean on a boiler?

The flashing green light at the Central Heating means that the heating has been called for to turn ON/OFF.

What is a boiler reset control?

A Boiler Reset Control is a devise that automatically controls the boiler water temperature according to a software program based on outdoor temperature. This improves boiler efficiency and indoor comfort by providing a better match between boiler output and space heating needs.

What does f0 mean on a boiler?

F0 - Fault Loss of system water. F0 - Fault Air lock in boiler.

What does c1 mean on a Worcester boiler?

A C1 error indicates the fan rotation is too low at start-up.

What does e4 mean on my boiler?

The error code E4 is when there are more than 5 start attempts without any flame formation. Earlier in the week the customer was able to reset the boiler and it would work fine again for a while. The boiler fired up to pre-heat some hot water and it took three ignition attempts to light.

Why are the numbers flashing on my Worcester boiler?

The symbol something like a hh or HH with missing digits indicates the boiler is in a form of commissioning mode. When some Worcester boilers are first turned on they will fill the siphon and display this symbol. Interruptions in power supply to the boiler can result in a reentering of this mode.

What does FD mean on a Worcester boiler?

Worcester Bosch CDI Classic Combi Boiler Error Codes
Fault Description System Behaviour
FA Flame detected after gas shut off – the gas valve needs checking – hire a Gas Safe installer.
FD Reset button pressed by mistake – press reset button again.