John Thompson · South Africa
John Thompson Gas Boiler Repairs in Johannesburg
John Thompson gas boiler repairs across Gauteng. Locally manufactured industrial plant with strong local parts support.
John Thompson equipment we work on includes packaged steam and hot water boilers. Commonly replaced parts on this brand are level controls, burners, refractory, and we keep or source these against the unit's model and serial plate rather than by guesswork.
Gas boiler repairs concentrate on the ignition and flame supervision chain: gas train, solenoids, ignition transformer, electrode gap, flame rod or UV cell, and the air proving switch. Lockouts are a symptom; the fault is normally in gas pressure, air proving or a dirty sensing path.
Recovery rate and storage volume have to be considered together; adding heating capacity to undersized storage rarely fixes a peak-hour shortfall. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.
- Parts
- Level controls, burners, refractory
- Turnaround
- Safety-related gas faults treated as same-day priority.
- Call
- 069 268 0988
What is included
Scope of work
- Gas train, regulator and solenoid testing
- Ignition electrode and transformer replacement
- Flame rod and UV scanner repairs
- Air pressure switch and fan repairs
- Heat exchanger clean and leak testing
- Gas leak detection and pipework repairs
Technical detail
Specifications
| Fuels | Natural gas (methane) and LPG |
|---|---|
| Types | Condensing, atmospheric, forced draught |
| Testing | Combustion analysis and tightness testing |
| Safety | Work in line with SANS gas installation requirements |
| John Thompson ranges | Packaged steam and hot water boilers |
When to call
Symptoms we see on this equipment
- Boiler locks out on ignition or flame failure
- Smell of gas near the appliance
- Repeated resets required each morning
- Yellow or lifting flame
Coverage
John Thompson Gas Boiler Repairs by area
- John Thompson Gas Boiler Repairs Johannesburg
- John Thompson Gas Boiler Repairs Sandton
- John Thompson Gas Boiler Repairs Randburg
- John Thompson Gas Boiler Repairs Midrand
- John Thompson Gas Boiler Repairs Fourways
- John Thompson Gas Boiler Repairs Bedfordview
- John Thompson Gas Boiler Repairs Germiston
- John Thompson Gas Boiler Repairs Boksburg
- John Thompson Gas Boiler Repairs Benoni
- John Thompson Gas Boiler Repairs Kempton Park
- John Thompson Gas Boiler Repairs Edenvale
- John Thompson Gas Boiler Repairs Alberton
- John Thompson Gas Boiler Repairs Roodepoort
- John Thompson Gas Boiler Repairs Krugersdorp
- John Thompson Gas Boiler Repairs Centurion
- John Thompson Gas Boiler Repairs Pretoria
FAQs
Frequently asked questions
Are you an authorised John Thompson agent?
We are an independent specialist. We repair and maintain John Thompson equipment using correct-specification parts, and where a unit is still under manufacturer warranty we will tell you before doing anything that could affect it.
Can you get John Thompson parts?
Level controls, burners, refractory for John Thompson are ordered against the model and serial plate. Where an original part has a long lead time we will offer a compatible equivalent and say clearly which one is being fitted.
What does John Thompson gas boiler repairs include?
Gas train, regulator and solenoid testing, Ignition electrode and transformer replacement, Flame rod and UV scanner repairs, plus verification that the unit performs to the manufacturer's stated figures after the repair.
Where do you service John Thompson equipment?
Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria. Call 069 268 0988 to confirm attendance for your address.
Is it worth repairing an older John Thompson unit?
Where the tank or coil has perforated, replacement is usually the honest answer and we will say so on site. Locally manufactured industrial plant with strong local parts support.
John Thompson gas boiler repairs
Serving Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.