Reyds.Heat pumps · Boilers · Steam

Ruimsig · Same-day

Gas Boiler Not Igniting in Ruimsig

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 Ruimsig.

This fault is normally treated as same-day work because the site has effectively lost hot water, steam or safe operation.

Estate housing with heat pump hot water and pool heating. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.

Area
Ruimsig, West Rand
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

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 Ruimsig?

Yes. West Rand visits carry a fuller van stock because parts runs back to Johannesburg cost time. Pool and domestic heat pumps serviced in the same visit.

Gas Boiler Not Igniting — Ruimsig

Pool and domestic heat pumps serviced in the same visit.