Melville · Same-day
Boiler Flame Failure in Melville
The burner lights then loses flame within seconds and locks out. This page covers how we diagnose and repair it on boilers in Melville.
This fault is normally treated as same-day work because the site has effectively lost hot water, steam or safe operation.
Older housing stock, guest houses and restaurants with small commercial hot water systems. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.
- Area
- Melville, Johannesburg
- Equipment
- Boilers
- Call
- 069 268 0988
What we find here
Likely causes
- Dirty or cracked flame rod
- Failed UV scanner
- Poor earth on the flame sensing circuit
- Incorrect air/fuel ratio
- Fluctuating gas supply pressure
How it is confirmed
Diagnostic sequence
- Flame signal measurement in microamps
- Earth continuity test
- Combustion analysis through the firing range
- Gas pressure under load
Repair route
Repair services in Melville
Boiler Repairs Melville
Repairs to gas, diesel, electric and steam boilers across Gauteng.
Boiler Maintenance Melville
Planned boiler servicing, combustion tuning and safety device testing.
Gas Boiler Repairs Melville
Natural gas and LPG boiler repairs, ignition and flame failure faults.
Industrial Boiler Repairs Melville
Heavy-duty boiler plant repairs for factories and processing sites.
Coverage
Nearby areas
- Boiler Flame Failure Radiokop Ext
- Boiler Flame Failure North Riding
- Boiler Flame Failure Northwold
- Boiler Flame Failure Northwold Ext
- Boiler Flame Failure Kya Sand
- Boiler Flame Failure Johannesburg
- Boiler Flame Failure Sandton
- Boiler Flame Failure Randburg
- Boiler Flame Failure Rosebank
- Boiler Flame Failure Fourways
FAQs
Frequently asked questions
What causes boiler flame failure?
The usual causes are dirty or cracked flame rod, failed uv scanner, poor earth on the flame sensing circuit, incorrect air/fuel ratio. Which one it is can only be confirmed by measurement, not by symptom alone.
How do you diagnose it?
Flame signal measurement in microamps; Earth continuity test; Combustion analysis through the firing range; Gas pressure under load. The readings are recorded so the repair decision is based on data.
Can I keep using the system in the meantime?
No — isolate the plant and call 069 268 0988. Running it in this condition risks further damage or an unsafe situation.
Do you attend this fault in Melville?
Yes. Technicians work out of the central Johannesburg base, which keeps travel time short for northern-suburb call-outs. Older plumbing often needs valve and pressure control correction.
Boiler Flame Failure — Melville
Older plumbing often needs valve and pressure control correction.