Specialists in boiler service | Over 14 years’ experience
We specialise in both Vaillant and Worcester combination, system, and heat only boilers. From the early turboMAX and ecoMAX range, to the more modern ecoTEC and ecoFIT units.
Worcester bosch boilers. We have the tools and knowledge! From the early non condensing boilers, to the more modern greenstar junior | SI | CDI |Compact | and CDI classic units.
A Worcester CDI mid way through our full service
Above | You can see the combustion and air sections of the boiler removed. We carry out a deep clean on burners and replace all combustion seals. Combustion gaskets are extremely important for safety. Preventing carbon monoxide escaping from the boiler. This is just one part of the full service we carry out.
Full strip down boiler service
Recommended every 5 years…
- Visual inspection
- Checking door / case seals
- Removal of the combustion door / burner flange / compact thermal module
- Inspection / replacing bearing plate
- Checking / replacing thermal insulating pads
- Removal, inspection and cleaning off baffles
- Cleaning the internal main heat exchanger coils / ribs using manufacturers service tool kit
- High pressure water flush of heat exchanger using a karcher 0B3
- Flushing through of the condense sump, trap and lines
- Cleaning the burner with soft brushes & compressed air
- Cleaning or replacing spark electrodes, and flame rectification
- Replacing the burner / combustion seal(s)
- Replacing service door seal
- Replacing spark electrode gasket
- Replacing combustion self locking nuts / safety rings
- Re greasing heat exchanger thread connections with copper grease
- Isolation of boiler and draining down
- Checking / replacing automatic air valve
- Testing / replacing schrader valve
- Charging expansion vessel
- Cleaning boilers condense trap
- Cleaning of the magnetic filters on the system
- Refilling and purging the boiler
- Checking correct boiler system water pressure
- Checking min and max co/co2 with a flue gas analyser
- Checking return air C02, C0 and 02 levels
- Adjusting gas valve if required
- Carrying out remaining 26.9 checks
- Checking boiler is gas tight
- Heating system water health check using a turbidity tube
- Fernox inhibitor / PH test using drip test
Standard boiler service
Recommended every year…
- Visual inspection
- Checking / topping up boiler system water pressure
- Cleaning boilers condense trap
- Cleaning magnetic filters on the system
- Checking door / case seals
- Checking / adjusting min and max co/co2 with a flue gas analyser
- Checking return air C02, CO and 02 levels
- Carrying out remaining 26.9 checks
- Vacuuming debris from case
- Proving safety controls
- Checking boiler is gas tight
- Heating water health check using a turbidity tube
- Fernox inhibitor test / PH test using drip test
“There may be slight process deviations and service parts within manufacturers, models and age, however the general process / principle remains the same…”
Above | The top of the heat exchanger is exposed. The fins are cleaned with a stiff brush first. Then we use a high pressure jet to clear any debris stuck inbetween the fins.
Above | You can see the service door removed exposing the front of this Worcester CDI main heat exchanger. Notice the before image has a build-up of debris on the ribs. This restricts the pull of the fan, limits performance, leads to inefficiency, causes problems with debris in the sump / trap leading to blockages and poor performance. We professionally clean using Worcester’s service tools, and plenty of elbow grease.
Frequently asked questions
How long will the service take?
Our ‘full strip down boiler service’ can take up to 3 hours. We carry all service parts on our van.
Our ‘Standard boiler service’ can take up to 60mins.
Will the service uphold the manufacturer's warranty?
As a ‘gas safe’ registered company specializing in service and repair, our service standard will keep all boiler manufacturers warranties, and extended guarantees up to date, so relax, we got you covered.
Will the water and gas be switched off?
Only to the boiler, not the property. We would never willingly prevent cups of tea being made!! We will isolate the gas and water supply at the boiler only, allowing cookers, toilets, and taps to be used. Unfortunately the hot water and the heating will be interrupted during the service.
Will a full service report be sent?
We will send you a detailed service report electronically and a reminder three weeks before the next service is due.
We will also leave our contact details sticker on the boiler, showing the date serviced and the next recommended service date. If you have the original service book to hand then great, we can fill this in also.
Heating water quality testing
We test your system water for the presence of inhibitor and for turbidity levels on both service options. If there is diluted, reduced, or no inhibitor detected we will offer to treat the system by introducing a Fernox F1 chemical.
If during the heating water health check we find the turbidity levels high we will offer a solution to this also. It may include a system drain down to replace the current water, the installation of a magnetic filter, or a magnacleanse treatment.
They say a picture is worth a thousand words…
Find your boilers literature here:
- Vaillant http://www.vaillant.co.uk/downloads/product-Information/combination-boilers/
- Viessmann http://www.viessmann.co.uk/en/detached_semi_detached_houses/Literature.html
- Ideal http://idealboilers.com/installer/product-literature/
- Worcester http://www.worcester-bosch.co.uk/installer/literature/discontinued-product-literature/discontinued-gas-boiler-literature