Steam systems · Same-day

Boiler Low Water Alarm

The low water cut-out trips and stops the boiler even when the tank has water.

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.

069 268 0988 info@reyds.co.za

Equipment: Steam systems
Priority: Same-day
Call: 069 268 0988

What we find

Likely causes

Fouled level probe
Failed feed pump or check valve
Blocked feedwater strainer
Air lock in the feed line
Level control board failure

Test sequence

How we diagnose it

Strip and clean level probes
Feed pump pressure and flow test
Strainer inspection
Level control function test

Repair route

Services that resolve this fault

Steam Boiler Repairs

Fire-tube and coil steam boiler repairs, level controls and burners.

Steam Boiler Maintenance

Planned steam plant servicing, blowdown routines and water chemistry.

Steam System Maintenance

Trap surveys, header repairs and condensate recovery optimisation.

Coverage

Attendance by area

Also check

Related faults

Boiler Not Producing Steam

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

Steam Boiler Pressure Problems

Pressure swings, safety valve lifting, or pressure that cannot be held under load.

Steam Trap Failure

Traps blow live steam through, or run cold with condensate backing up.

Water Hammer in Steam Lines

Loud banging in steam mains, sometimes with pipework movement.

FAQs

Frequently asked questions

What causes boiler low water alarm?

The usual causes are fouled level probe, failed feed pump or check valve, blocked feedwater strainer, air lock in the feed line. Which one it is can only be confirmed by measurement, not by symptom alone.

How do you diagnose it?

Strip and clean level probes; Feed pump pressure and flow test; Strainer inspection; Level control function test. 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 low water alarm diagnosed

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

069 268 0988 Request a quote