John Thompson · South Africa
John Thompson Boiler Repairs in Johannesburg
John Thompson 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.
Boiler repairs cover the burner, the pressure vessel side, the water treatment side and the safety controls. Most lockouts trace back to ignition, flame sensing, water level control or feedwater quality rather than to the vessel itself, and the correct repair starts with reading the lockout history.
Peak draw-off matters more than total daily volume: plant that satisfies a whole day of demand can still fail at a 45-minute shower peak. Sites with long, poorly insulated pipework lose more heat in distribution than most owners expect, which reads as a capacity problem at the outlet.
- Parts
- Level controls, burners, refractory
- Turnaround
- Breakdown attendance prioritised; parts sourced same day where available.
- Call
- 069 268 0988
What is included
Scope of work
- Burner service, ignition and flame-sensing repairs
- Water level control and probe replacement
- Feed pump, check valve and injector repairs
- Safety valve, pressure switch and gauge replacement
- Refractory and gasket repairs
- Control panel and sequence controller fault-finding
Technical detail
Specifications
| Fuel types | Natural gas, LPG, diesel, electric |
|---|---|
| Typical outputs | 50 kW – 5 000 kW |
| Pressures | Low pressure hot water to 10 bar steam |
| Records | Service report and parts list per visit |
| John Thompson ranges | Packaged steam and hot water boilers |
When to call
Symptoms we see on this equipment
- Repeat burner lockout after reset
- Pressure dropping without visible leaks
- Sooting or yellow flame at the burner head
- Low water alarm triggering during normal operation
Coverage
John Thompson Boiler Repairs by area
- John Thompson Boiler Repairs Johannesburg
- John Thompson Boiler Repairs Sandton
- John Thompson Boiler Repairs Randburg
- John Thompson Boiler Repairs Midrand
- John Thompson Boiler Repairs Fourways
- John Thompson Boiler Repairs Bedfordview
- John Thompson Boiler Repairs Germiston
- John Thompson Boiler Repairs Boksburg
- John Thompson Boiler Repairs Benoni
- John Thompson Boiler Repairs Kempton Park
- John Thompson Boiler Repairs Edenvale
- John Thompson Boiler Repairs Alberton
- John Thompson Boiler Repairs Roodepoort
- John Thompson Boiler Repairs Krugersdorp
- John Thompson Boiler Repairs Centurion
- John Thompson 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 boiler repairs include?
Burner service, ignition and flame-sensing repairs, Water level control and probe replacement, Feed pump, check valve and injector 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?
If the compressor and heat exchanger are sound, repair is almost always cheaper than replacement. Locally manufactured industrial plant with strong local parts support.
John Thompson boiler repairs
Serving Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.