Essay
Fault Finds Level 3 Diploma in Gas Engineering
- Module
- Fault Finds
- Institution
- PEARSON (PEARSON)
Fault Finds Level 3 Diploma in Gas Engineering good for gas
[Show more]
Content preview
Name:Address:
Date:
Appliance type: ideal instinct boiler 24kw
Meter: G4
Fault find 4
At approximately 9:00 am I received a call from a customer stating that when he
tried to start up the boiler it wasn’t igniting, meaning they had no hot water or
heating, which the customer was distressed about. Instantly I started to diagnose
the problem before I got to the property, and I knew that in most cases where
the boiler isn't igniting its most likely due to a faulty ignition electrode.
When I arrived at the property, I went to the boiler and tried to start it however
there was nothing. it wasn’t making the usual clicking sound to show that the
boiler is igniting. I also went to the taps to see if hot water was coming out
however that was also absent which indicated to me that i needed to look inside
the boiler. Before I done that, I conducted my visual inspection starting at the top
of the meter by making sure that the Emergency Control Valve (ECV) falls to the
OFF position and that there is a label indicating what position means the ECV is
on or off. Gradually I worked my way down the meter analysing that the
pipework/anaconda is in good condition (no paint or dents/holes), the brackets
holding the meter are secure and that the tamper seal has not been tampered
with and is sitting correctly on the regulator. When I finished my inspection and
was certain that I checked everything correctly, I moved on to the tightness test.
Prior to starting the tightness test I made sure that the U-gauge I was using was
in good working condition and that the water inside of it was level to zero-zero
millibar. I performed this tightness test to make sure that the installation that
was done before is safe. The first test that I performed on the meter was the let–
by test, to ensure that there is no gas that can pass through the valve when it is
turned off, so I isolated all appliances starting farthest from the meter. I removed
the screw from the test point and replaced it with the tube from the U-gauge. I
then put the ECV to the on position, to make pressure, so that the reading within
the U-gauge was at 10 mb (millibar) and then timed it to run for 1 minute. Once I
was fulfilled with my let-by test that proved no gas was passing through when
the ECV was in the off position I moved on to conducting my temperature
stabilisation. Temperature stabilisation is done to allow the water and gas in the
U-gauge to equalise in temperature so the reading from the tightness test will be
accurate.
With the tube still attached to the test point I made sure that the reading on the
U-gauge was back on its original position (zero-zero millibar). I Then turned the
ECV to the on position to allow the pressure to let the water rise to 20 mb,
subsequently timing it for 1 minute. When I was done with my temperature
stabilisation and content that my results were adequate, I moved on to the
tightness test. The tightness test is implemented to test the entire installation
(all pipework and appliances downstream of the meter) for gas escapes. Firstly, I
made sure that the U-gauge was back to the starting off point at zero-zero
millibars, then I turned the ECV to the on position to allow the pressure from the
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller strawbsxo. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73918 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now