We recently carried out a boiler repair on a Viessmann system that had previously been recommended for replacement by another company.

The boiler, approximately 9 years old, was diagnosed properly to identify the root cause of the issues.

Faults Identified:

• Failed expansion vessel

• Faulty hot water sensor

Both components were replaced, restoring the boiler to full working order.

In addition to the repair, we completed a full strip-down service to ensure long-term reliability.

Scope of Works Completed:

• Full diagnostic and fault finding

• Expansion vessel replacement

• Hot water sensor replacement

• Strip-down service and internal cleaning

• Gasket replacement where required

• Gas tightness testing

• Water quality testing using Adey ProCheck

Why This Matters:

Not all boiler faults require full replacement. Accurate diagnostics and proper servicing can often restore a system at a fraction of the cost.

This approach helps to:

• Avoid unnecessary replacement costs

• Extend the lifespan of the boiler

• Improve efficiency and performance

• Ensure safe and reliable operation

Boiler Repairs & Diagnostics in Exeter & East Devon

At SAFEXE LTD Gas, Plumbing & Heat Pumps, we specialise in detailed fault finding, repairs, and full system servicing across:

Exeter, Exmouth, Pinhoe, Woodbury, Topsham, West Hill, Ottery St Mary, Sidmouth & Budleigh Salterton.

Every job is approached with a focus on diagnosis first — ensuring the correct solution is provided.

Finance options available.

0% VAT available on qualifying energy-efficient heating installations.