Crowthorne · Same-day
Boiler Flame Failure in Crowthorne
The burner lights then loses flame within seconds and locks out. This page covers how we diagnose and repair it on boilers in Crowthorne.
This fault is normally treated as same-day work because the site has effectively lost hot water, steam or safe operation.
Crowthorne is a high-value residential pocket of Midrand, typically with multiple geysers or a heat pump on buffer storage, and in many cases pool or underfloor heating on the same plantroom. Where a site runs on borehole water, hardness and iron content shorten service intervals considerably and are worth testing before setting a maintenance plan.
- Area
- Crowthorne, Midrand & Centurion
- 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 Crowthorne
Boiler Repairs Crowthorne
Repairs to gas, diesel, electric and steam boilers across Gauteng.
Boiler Maintenance Crowthorne
Planned boiler servicing, combustion tuning and safety device testing.
Gas Boiler Repairs Crowthorne
Natural gas and LPG boiler repairs, ignition and flame failure faults.
Industrial Boiler Repairs Crowthorne
Heavy-duty boiler plant repairs for factories and processing sites.
Coverage
Nearby areas
- Boiler Flame Failure Glenferness AH
- Boiler Flame Failure Halfway Gardens
- Boiler Flame Failure Halfway House
- Boiler Flame Failure Midstream Estate
- Boiler Flame Failure Midstream Ridge
- Boiler Flame Failure Midstream Meadows
- Boiler Flame Failure Midrand
- Boiler Flame Failure Waterfall
- Boiler Flame Failure Waterfall Country Estate
- Boiler Flame Failure Waterfall Estate
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 Crowthorne?
Yes. Midrand and Centurion sit between the Johannesburg and Pretoria routes, so attendance windows are usually the shortest of any area. Crowthorne falls inside our core northern-suburb route, so response is normally same-day for loss-of-hot-water call-outs.
Boiler Flame Failure — Crowthorne
Crowthorne falls inside our core northern-suburb route, so response is normally same-day for loss-of-hot-water call-outs.