Reyds.Heat pumps · Boilers · Steam

Steam systems · Same-day

Boiler Not Producing Steam

The boiler fires but pressure will not build to the operating setpoint.

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

Sites with long, poorly insulated pipework lose more heat in distribution than most owners expect, which reads as a capacity problem at the outlet.

Equipment
Steam systems
Priority
Same-day
Call
069 268 0988

What we find

Likely causes

  • Burner not reaching high fire
  • Excessive blowdown or a passing blowdown valve
  • Feedwater temperature too low
  • Scaled tubes reducing heat transfer
  • Steam demand exceeding boiler capacity

Test sequence

How we diagnose it

  • Combustion analysis at high fire
  • Blowdown valve inspection for passing
  • Feedwater temperature logging
  • Fireside and waterside inspection

Coverage

Attendance by area

FAQs

Frequently asked questions

What causes boiler not producing steam?

The usual causes are burner not reaching high fire, excessive blowdown or a passing blowdown valve, feedwater temperature too low, scaled tubes reducing heat transfer. Which one it is can only be confirmed by measurement, not by symptom alone.

How do you diagnose it?

Combustion analysis at high fire; Blowdown valve inspection for passing; Feedwater temperature logging; Fireside and waterside 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.

Where do you attend this fault?

Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.

Get boiler not producing steam diagnosed

Same-day attendance across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.