Gas Safe Registered No. 980201
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Sime Boiler Repair, Service & Installation

Gas Safe Reg. 980201 24/7 across Yorkshire

Sime Murelle, Brava & Format combi boiler repair and installation.

About Sime repairs & installs

Sime is an Italian boiler manufacturer with a growing UK presence — known for long warranties and good value. We service and repair the Murelle EV HE, Brava One, Format and Friendformat ranges across Bradford, Leeds and the wider Yorkshire area. Common Sime faults are AL 01 overheats, AL 02 low pressure and AL 06 ignition lockouts — sortable in a single visit on most call-outs. New Sime Murelle installs come with up to a 10-year manufacturer warranty.

Sime models we work on

Murelle EV HEBrava OneFormat DGT HEFriendformatPlanet Dewy

Common Sime fault codes we fix

  • AL 01

    Overheating / safety thermostat intervention — check radiator valves, allow to cool, reset.

  • AL 02

    Low system water pressure — repressurise to 1.0–1.5 bar via filling loop.

  • AL 03

    High system water pressure — close filling loop, bleed a radiator to around 1.2 bar.

  • AL 04

    Temperature sensor (thermistor) fault — sensor swap.

  • AL 05

    Temperature sensor (thermistor) fault — sensor swap.

  • AL 06

    No flame detection / ignition failure — gas supply, electrode or gas valve.

  • AL 07

    Overheating / safety thermostat intervention — circulation or pump fault.

  • AL 09

    No water circulation — pump jammed, blocked or faulty.

Up to 10-year manufacturer warranty

When you have a new Sime boiler installed by us, we register the manufacturer warranty on your behalf so you're fully covered. Plus our own 12-month workmanship guarantee.

Reviews

Real reviews from Sime customers

Verified 5★ Google reviews from across Bradford, Leeds and the wider Yorkshire area.

Read all reviews
Five-star service
"Great work carried out and reliable thankyou"
Alix Iluk
Boiler sorted
"Abdullah was excellent. He uncapped my gas meter, carried out all the necessary safety checks, and reset my boiler. He was polite, patient, and took the time to explain everything clearly so I understood what he was doing. His professionalism and friendly attitude made the whole experience stress-free. I really appreciated his help and would highly recommend Abdullah to anyone needing a reliable gas engineer"
Abida Bibi
Toilet repair
"Excellent service Did a really good job in fixing toilet handle Really good price Would recommend anyone to use this service Excellent!"
Dawn Hemstock
Boiler service
"Amazing service from start to finish very quick to arrive , clean , talked me through the process , would highly recommend"
Hassan Hussain
Boiler service
"Fantastic service from Abdullah! Highly recommend Boiler Rescue 24/7 if your looking for a reliable and trustworthy engineer. He is a man with lots of experience and knows exactly what he is doing. I can always rely on him and he always delivers. He always keeps me updated with clear communications! Thank you for your work and help and I wish you all the best 😊"
Abdurrahman
Five-star service
"Abdullah was very professional and was very efficient with his work. He carried out the work very professionally and neatly. I would recommend him to other people."
maryam maqsood

FAQs

Sime boiler — common questions

Yes — we repair every model in the current Sime range (Murelle EV HE, Brava One, Format DGT HE, Friendformat and more) plus older units. Most call-outs are first-time fixes thanks to common Sime parts carried on the van.
Chat to Boiler Rescue 247 boiler engineer on WhatsApp