Crowthorne · Same-day
Gas Boiler Not Igniting in Crowthorne
The boiler attempts to start, clicks or purges, then locks out without lighting. 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. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.
- Area
- Crowthorne, Midrand & Centurion
- Equipment
- Boilers
- Call
- 069 268 0988
What we find here
Likely causes
- Failed ignition electrode or transformer
- No gas supply or closed valve
- Gas solenoid or valve failure
- Air pressure switch not proving
- Blocked flue or condensate trap
How it is confirmed
Diagnostic sequence
- Electrode gap and spark test
- Gas pressure measurement at the train
- Air proving switch continuity test
- Flue and condensate path inspection
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
- Gas Boiler Not Igniting Glenferness AH
- Gas Boiler Not Igniting Halfway Gardens
- Gas Boiler Not Igniting Halfway House
- Gas Boiler Not Igniting Midstream Estate
- Gas Boiler Not Igniting Midstream Ridge
- Gas Boiler Not Igniting Midstream Meadows
- Gas Boiler Not Igniting Midrand
- Gas Boiler Not Igniting Waterfall
- Gas Boiler Not Igniting Waterfall Country Estate
- Gas Boiler Not Igniting Waterfall Estate
FAQs
Frequently asked questions
What causes gas boiler not igniting?
The usual causes are failed ignition electrode or transformer, no gas supply or closed valve, gas solenoid or valve failure, air pressure switch not proving. Which one it is can only be confirmed by measurement, not by symptom alone.
How do you diagnose it?
Electrode gap and spark test; Gas pressure measurement at the train; Air proving switch continuity test; Flue and condensate path inspection. 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.
Gas Boiler Not Igniting — Crowthorne
Crowthorne falls inside our core northern-suburb route, so response is normally same-day for loss-of-hot-water call-outs.