Potterton Boiler E134 Fault Code


The Potterton fault code E134 no gas going through gas valve Q & A or require an engineer for an emergency boiler repair.


The Potterton Boiler Fault Code E134 Error Common Q & A


Just below, we have a list of common questions relating to the E134 fault code on the Potterton boiler.

Potterton Boiler E134 Fault Code

  • What does the E134 fault code mean on my Potterton boiler?
  • Is a boiler showing the E134 fault code dangerous?
  • Won’t a reset fix the boiler and clear the E134 fault code?
  • What problems could be causing the E134 fault code to be displayed on my Potterton boiler?
  • Can my heating engineer test the gas pressure to locate the gas supply issue?
  • How will my boiler repair engineer know if the gas valve is causing the fault on my Potterton boiler?
  • How much will it cost to fit a new gas valve on my Potterton boiler?
  • How will my boiler engineer know if the adjustment on the gas valve is incorrect?
  • Why would my gas valve be sticking closed?
  • What does the PCB have to do with a gas supply fault?
  • Will I need a new boiler if the gas valve and PCB are faulty?

What does the E134 fault code mean on my Potterton boiler


Your boiler’s heart is the printed circuit board (PCB). When the PCB notices an issue, it will lock out and display a fault code. In this case, the E134 fault code means that the gas valve has been told to open, but there’s no gas flow detected.

Is a boiler showing the E134 fault code dangerous


Any gas related fault is a potentially dangerous one. This isn’t a problem that should be fixed on a DIY basis, as a wrong move could make the boiler even more dangerous than it already is.

Instead of a DIY repair, you should call a Gas Safe engineer to find and fix the problem.

Won’t a reset fix the boiler and clear the E134 fault code


A reset might temporarily trick the boiler into thinking that the problem causing the E134 fault code has been fixed. But, as soon as the boiler notices that the problem is still occurring, it will lock out again. Resetting a boiler without fixing the problem is potentially dangerous, so don’t do it.

Your boiler engineer will reset your boiler on your behalf, once they’ve found and fixed the problem causing the fault.

What problems could be causing the E134 fault code to be displayed on my Potterton boiler


This isn’t a hyper-specific fault code. Therefore, the fix isn’t a simple one to find. The problem could be with the:

  • Gas supply and pressure from the mains, to the meter, or to the boiler
  • Faulty gas valve
  • Incorrect adjustment on the gas valve
  • Gas valve is sticking close
  • PCB fault

Can my heating engineer test the gas pressure to locate the gas supply issue


Your boiler engineer will be able to test the gas pressure into the meter, out of the meter and into your boiler. If there’s a problem with gas pressure and supply at any of these points, these tests will help to highlight exactly where that supply fault is.

For instance, they might find that the gas main feeding your boiler is insufficient. This is common when a new and larger boiler is fitted to a property, as older gas regulations were more lenient. Due to the larger boiler needing more gas than the previous appliance, the supply isn’t sufficient.

But, in winter, it’s likely that the gas meter is to blame. Meters that are located outside and exposed to the elements have problems with the regulator freezing. If this is the case, it needs to be boxed in and lagged, to protect it from the elements.

How will my boiler repair engineer know if the gas valve is causing the fault on my Potterton boiler


Gas travels from the mains, to the meter, through the regulator and to your boiler. The flow is constant, and it’s the gas valve’s job to ensure that the boiler’s burner is constantly receiving the amount of gas it requires. When this part fails, you’ll have problems establishing a flame, stabilising a flame, and heating hot water/radiators.

Your boiler engineer will be able to test the gas valve using electrical testing equipment such as a multi-meter. If the gas valve isn’t showing power, they can check wiring and connections to and from the component. If these connections and wires show power, the problem is with the valve, and it will need to be replaced.

How much will it cost to fit a new gas valve on my Potterton boiler


Although prices will vary depending on the exact model of Potterton boiler you own, you should expect to pay around £300.

And, whilst the job will only take a day, don’t expect it to be completed on the same day you call a boiler repair company. Gas valves are spares that most gas engineers won’t keep on their vans. So, they’ll have to order it in from their local plumbing merchants (usually next day).

How will my boiler engineer know if the adjustment on the gas valve is incorrect


Not all problems relating to the E134 fault code are down to faulty components. Sometimes, it’s just a case of simple adjustments.

After testing the gas valve for power, your boiler engineer will be able to check the adjustment on a valve. If the adjustment is even a tiny bit away from where it should be, that’s going to affect the gas supply to the burner.

If the valve can be adjusted to supply the burner with sufficient gas, it won’t need to be replaced.

Why would my gas valve be sticking closed


Gas valves in boilers are moving parts. And like all moving parts, they wear out, fail and sometimes even get stuck.

The gas valve can get stuck fully open (allowing gas into the burner when it shouldn’t), and fully closed (not allowing gas into the burner when it should). In this case, it’s likely that it’s stuck closed; no gas supply.

If the gas valve isn’t excessively worn, your boiler repair engineer will be able to free the valve. But, if there’s even the slightest sign that this might happen again, they’ll suggest a replacement. An intermittent gas valve can pose a danger.

What does the PCB have to do with a gas supply fault


The E134 fault code is one where the PCB thinks the gas valve is open. Mentioned above, we covered valves sticking closed. If the PCB was faulty, it could think the valve was open, even if it’s stuck closed.

And likewise, if the PCB is faulty, it might not be giving the correct signals to the gas valve. This is going to create intermittent boiler operation, and the PCB to think that the gas valve isn’t responding when it should be.

Will I need a new boiler if the gas valve and PCB are faulty


Typically, repair costs of £500+ are when we should start thinking about the possibility of a new boiler. A PCB replacement could cost £500, and a gas valve around £300. If your boiler’s overall condition (pump, fan, ignition leads etc) is good, it may still be worth repairing it, rather than replacing.

However, get your engineer to check all expensive and important components; they’ll help you to determine the most cost-effective solution.

Other Potterton boiler issues


For more boiler issues regarding the Potterton Boiler then please visit the Potterton Boiler Problems And Cures page.