Pretoria · Same-day
Gas Boiler Not Igniting in Pretoria
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 Pretoria.
This fault is normally treated as same-day work because the site has effectively lost hot water, steam or safe operation.
Government buildings, hospitals, hostels and industry with large centralised hot water and boiler plant. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.
- Area
- Pretoria, Pretoria
- 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 Pretoria
Boiler Repairs Pretoria
Repairs to gas, diesel, electric and steam boilers across Gauteng.
Boiler Maintenance Pretoria
Planned boiler servicing, combustion tuning and safety device testing.
Gas Boiler Repairs Pretoria
Natural gas and LPG boiler repairs, ignition and flame failure faults.
Gas Boiler Maintenance Pretoria
Annual gas boiler servicing, tightness testing and combustion tuning.
Industrial Boiler Repairs Pretoria
Heavy-duty boiler plant repairs for factories and processing sites.
Coverage
Nearby areas
- Gas Boiler Not Igniting Pretoria North
- Gas Boiler Not Igniting Rosslyn
- Gas Boiler Not Igniting Silverton
- Gas Boiler Not Igniting Pretoria East
- Gas Boiler Not Igniting Noordwyk Ext
- Gas Boiler Not Igniting Crowthorne
- Gas Boiler Not Igniting Crowthorne AH
- Gas Boiler Not Igniting Glenferness
- Gas Boiler Not Igniting Glenferness AH
- Gas Boiler Not Igniting Halfway Gardens
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 Pretoria?
Yes. Pretoria and surrounds are covered on planned routes, with breakdown work slotted into the nearest available run. Institutional plant handled with formal reporting and compliance records.
Gas Boiler Not Igniting — Pretoria
Institutional plant handled with formal reporting and compliance records.