What is ‘Boiler Lockout’?

March 2nd, 2017

A boiler lockout means that your boiler has shut down. When a boiler lockout occurs, it stops working and the display will flash up with an error code to inform you of the fault.

Look out for error codes and flashing lights (red or green) to determine boiler lockout.

Boiler LOCK

What will cause ‘boiler lockout’?

Whilst oil boilers have an excellent service record, boiler lock out can occur, and an older boiler will be more prone to boiler lockout than more modern models.  A boiler can lock out for several reasons, such as you’ve run out of heating oil, there’s been a power cut, low pressure or a more serious safety issue.

Another cause could be an extreme change in boiler pressure, this may occur with a sludge blockage. Our Premium Heating Oil actually reduces sludge build up and prevents corrosion of integral boiler components, prolonging the life of your boiler and making the fuel last longer.

‘Boiler lockout’ may have occurred due to a catastrophic component failure within the system. If in any doubt whatsoever we would always recommend you call an OFTEC registered technician. Alternatively call Northern Energy on 01423 770 666 and we will help you find an engineer.

What do I do if my boiler is ‘locked out’?

1.      Read the fault code

Consult your boiler manual. If you don’t still have the manual, enter the boiler model name and error code into an internet search engine. The chances are you aren’t the first person to have this problem. Information on this error or videos on how to put it right will be available.

2.      Reset

On confirmation of ‘boiler lockout’, you will first try the reset button. Again, if you don’t have the manual to locate the reset button, try an internet search. In the majority of cases, the boiler will fire back into life, but if you are having to press the reset button several times, there may be a more serious issue and we would always recommend you contact an OFTEC engineer to get it checked out.

3.      Check your oil tank

  • Your oil tank may have run empty.
  • Your oil level may have run so low that the sludge formed at the bottom of your tank has entered the boiler system.
  • There may be damage to pipework between the tank and the boiler.

 Have your boiler serviced regularly

Your boiler should receive (at least) an annual service. Boilers should be serviced annually or in accordance with the manufacturer’s instructions to ensure they run to their maximum efficiency, for safety and to check for carbon monoxide emissions. Black carbon particles will build up on boiler components and reduce the boiler’s efficiency. We would always recommend you fit an audible carbon monoxide detector, and these can be purchased online from OFTEC direct.

Use the best fuels available

Our Premium Heating Oil contains additives:

·         Anti-oxidants

·         Dispersants

·         Detergents

·         Corrosion inhibitors

·         Metal de-activators

·         Fuel stabilisers

Click here for more details on Premium Heating Oil.

What our clients are saying

We have just had a delivery this morning. The driver is new and I just wanted you to know how efficient he was and very friendly. He told us about your new vehicle which will be able to access hard to reach properties if the weather is bad and the big tankers cannot get access. Mr S
We had an exceptionally busy period at the pub in summer and ran out of gas from a delivery which would normally have lasted much longer. I rang Northern Energy mid-morning when we discovered our situation and they delivered within 20 minutes! We were all very impressed by the speed and helpfulness of the service which got us out of a potentially very difficult situation. Lunch service went on as normal in our pub.
Thank you, Northern Energy!
Mrs R - Publican
Excellent service , easy to order with polite efficient sales staff. Delivery drivers friendly and reliable, very impressed with all round customer service.  Mrs J
Your telephone is answered quickly and in a friendly manner followed up with call/message of delivery date. Mrs B
My husband and I are very pleased with your overall service and have recommended your service to other people round about. We rate you 10. Many thanks Mrs B
Yes I would recommend you, I score 10. The 'PPP' keeps my tank topped up, no VAT to pay. A very good efficient firm with nice friendly delivery men. Thank you Mr W
Been with you now since 2005 would recommend you to anyone Mr W
Always good service from ring (a day before) to say delivery is on it's way to the tank being filled up, thanks guys! Mr T
Last year I recommended you to my neighbour and he is equally happy with your service. Mrs S
I have just recommended your company to a friend who's just moved into a new home and uses oil. I have given you 10 in ratings. Mr M
We find the whole service really easy & efficient Mrs M
We are new customers, but the one delivery we have had came on time. The driver was very friendly and quick with no mess. Very pleased and no need to go elsewhere! Mrs D
I have always been very happy with the service I've recieved from Northern Energy and in fact have got you 2 more customers in the village. The delivery men are always courteous and I think that goes a long way! Northern Energy get a five star rating from me. Mr C
I am pleased with your automatic top-up system. It saves me worrying about running out and presumably saves you money if you can top up a group of neighbouring customers in one delivery - so win-win. Mr D
We have been very impressed with the service received from Northern Energy. The team are always very friendly and always willing to help in any which way they can. If we are cancelling a delivery there are never any questions asked. Recently we had a new oil tank fitted and the oil was delivered within two days of being ordered (we had allowed up to 5 days). Mr K
As a customer I love the all inclusive package of oil and maintenance that you offer. As a second home owner, we never run out of oil like we do ‘at home’ because you keep us ‘topped up’. Mr C

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