Intergas Boiler Fault Code 8
The Intergas fault code 8 relates to the boiler fan speed and here we have Q & A. We could also offer you a service by you clicking on our emergency boiler repair booking.
The Intergas Boiler Fault Code 8 Error Common Q & A
Just below, we have a list of common questions relating to the fault code 8 on the Intergas Boiler.
- What does fault code 8 mean on Intergas boilers?
- If I reset my boiler, is this going to clear fault code 8 from the display panel?
- What does the fan on my boiler do?
- If the fan’s speed is incorrect, can it be fixed to clear the fault code?
- My boiler engineer thinks the connection between the PCB and the fan is to blame, does this sound right?
- How will my boiler repair company know if there’s a terminal issue with the fan?
- My boiler engineer thinks my fan needs replacing, how much is this going to cost?
- If the problem isn’t with the fan, what else could be causing fault code 8 to be displayed?
- What does the air pressure switch have to do with fault code 8 being displayed?
- If my air pressure switch needs replacing, how much is it likely to cost?
- How could the PCB be causing fault code 8 to be displayed on my boiler’s control panel?
- Can my boiler repair company test the PCB to determine if it’s faulty?
- What could have caused a PCB failure, and how much will a new one cost?
What does fault code 8 mean on Intergas boilers
If you’re having a problem with your Intergas boiler, you’ll notice a fault code on the display panel. Fault code 8 relates to a fan speed that’s incorrect.
As a safety precaution, it’s likely that your boiler will lockout. So, it won’t work until the problem has been fixed, and the boiler has been reset.
If I reset my boiler, is this going to clear fault code 8 from the display panel
The reset function on your Intergas boiler isn’t designed to be used to fix the appliance. Boilers lockout for a reason. In many cases, it’s to stop more damage being caused to the components that have developed problems.
However, in this case, it’s likely the boiler has locked out as a safety precaution. And for that reason, you shouldn’t try and reset your boiler. Instead, you should employ the help of a professional.
An emergency boiler repair company will be able to diagnose the fault and make the fix. Once the problem relating to fault code 8 on your Intergas boiler has been fixed, they’ll reset your boiler to clear the fault code.
What does the fan on my boiler do
The fan on your boiler is extremely important. So important in fact, that your boiler’s printed circuit board (PCB) won’t allow the boiler to ignite, until it recognises that the fan is running.
The role of the fan is to create a draught that’s big enough to expel waste gases out of the flue. These gases are dangerous, so if the fan isn’t running, these gases linger in the boiler and the whole appliance becomes dangerous.
But the fan doesn’t have to be at a standstill to cause fault code 8 to be displayed on the control panel. It’s likely the fan speed setting is too low, and that’s not allowing these waste gases to be vented out of your boiler.
If the fan’s speed is incorrect, can it be fixed to clear the fault code
Call a boiler repair company, and they’ll be able to check the fan, to make sure there are no terminal problems with it. All being well, they’ll be able to adjust the fan speed to ensure that all waste gases are expelled from the flue.
Once they’ve done this, they’ll be able to reset your boiler to clear the fault code. The PCB will then recognise that air pressure in the boiler is correct thanks to the increased fan speed, and the boiler won’t lockout or display a fault code.
My boiler engineer thinks the connection between the PCB and the fan is to blame, does this sound right
Your boiler repair company won’t just check the wires and connections on the fan. They’ll also want to check the wiring harness that connects the PCB to the fan.
It’s the PCB that controls all the most important components in your boiler, including the fan. So, if the wiring between the PCB and the fan is defective, the fan isn’t going to be receiving the signals it needs to be running at the right speed, at the right times.
How will my boiler repair company know if there’s a terminal issue with the fan
Your boiler repair company will want to test the fan, to make sure that the fan’s speed is the only problem. Typically, they’ll start with a visual inspection of all wires and connections. Damaged wires can be repaired, and loose connections can be secured.
Even one damaged wire or loose connection could mean that the fan works intermittently, not producing a strong enough draught at times. And, that’s ultimately going to mean that the boiler isn’t operating safely; the PCB will lockout the boiler as a safety precaution.
If a visual inspection doesn’t raise any issues, the next stage is to test the fan’s electrical integrity. They’ll be able to do this by testing all wires, connections and the fan itself, using a multi-meter.
Your Gas Safe engineer will be looking for any tell tale signs of weak, intermittent, or no power at all points in the circuit. Any of these scenarios, is going to lead to a fan that doesn’t work correctly. So, even adjusting the fan’s speed won’t stop the problem from occurring in the long-term.
My boiler engineer thinks my fan needs replacing, how much is this going to cost
Not all boiler components can be salvaged by reconditioning them. If your boiler engineer suspects your fan is on its last legs, they’re likely to suggest a replacement. After all, this is a component that is crucial when it comes to keeping your boiler operating safely.
Although fans aren’t the most expensive part in your boiler, they’re still not cheap. A typical fan replacement on an Intergas boiler is going to be in the region of £250; that’s the price including parts and labour.
In terms of timescale, it’s unlikely that the job will be done on the same day as the call out. It’s likely your boiler engineer will have to order the fan on next day delivery from their local parts supplier. So, you should expect it to be 2-3 days before your boiler is back up and running again.
If the problem isn’t with the fan, what else could be causing fault code 8 to be displayed
Although the fan is the most obvious place to start, there are other components that could be causing issues, including the air pressure switch and the PCB.
What does the air pressure switch have to do with fault code 8 being displayed
The air pressure switch is the component that monitors air pressure in your boiler. By monitoring air pressure and feeding back readings to the PCB, the PCB can determine when the fan is operating, and when it’s safe for the boiler to ignite.
However, if the air pressure switch is faulty, it might not be giving the PCB the correct readings. And, that’s going to lead to the PCB thinking that the fan isn’t running correctly, even when it is.
So, your boiler repair company will need to test the air pressure switch. If this component is faulty, they’re going to need to replace the switch in order to clear fault code 8 from the control panel.
If my air pressure switch needs replacing, how much is it likely to cost
If your Gas Safe engineer can pinpoint the air pressure switch as the problem, you’ll need a replacement. Typically, we’d expect a new switch to cost around £200 including parts and labour. However, this will vary slightly, depending on the exact Intergas boiler you own.
How could the PCB be causing fault code 8 to be displayed on my boiler’s control panel
We’ve already mentioned that the connection between the PCB and the fan could be the issue. However, in more serious cases, it’s the PCB that’s to blame.
The PCB needs to see that the fan is running, and at the correct speed. And, it can determine this via the air pressure switch readings.
However, if the PCB is faulty, it’s likely the readings it’s getting are incorrect. And, that’s going to mean that it thinks that the fan isn’t running at the correct speed, even when it is.
Can my boiler repair company test the PCB to determine if it’s faulty
Like all electrical components, your boiler’s PCB can be tested. The test involves using a multi-meter, checking all wires, connections and the PCB itself.
If there’s lack, intermittent or no power coming from the PCB, it needs to be repaired or replaced.
Whilst on some occasions securing connections and repairing wiring can fix the problem, in more serious cases, it’s likely the PCB will need swapping for a new one.
What could have caused a PCB failure, and how much will a new one cost
Although old age is to blame on most occasions, your repair company needs to check that something more serious isn’t at play.
A typical example would be water damage. This could have come from a leak on the heat exchanger or pump, causing damage to electrics not just on the PCB, but on other components too.
A PCB replacement is likely to cost around £450. And, whilst that’s a lot less than a new boiler, your engineer will need to check the extent of the water damage. Coupled with the cost of a PCB replacement and fixing a leak, if multiple components are likely to need replacing because of water damage, it might be worth investing in a new boiler, rather than fixing your old one.
Other Intergas boiler issues
For more boiler issues regarding the Intergas boiler then please visit the Intergas Boiler Problems And Cures page.