Reyds.Heat pumps · Boilers · Steam

Centurion · Same-day

Boiler Low Water Alarm in Centurion

The low water cut-out trips and stops the boiler even when the tank has water. This page covers how we diagnose and repair it on steam systems in Centurion.

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

Extensive residential estates plus corporate and light industrial parks with modern heat pump plant. Where a site runs on borehole water, hardness and iron content shorten service intervals considerably and are worth testing before setting a maintenance plan.

Area
Centurion, Midrand & Centurion
Equipment
Steam systems
Call
069 268 0988

What we find here

Likely causes

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

How it is confirmed

Diagnostic sequence

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

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.

Do you attend this fault in Centurion?

Yes. Midrand and Centurion sit between the Johannesburg and Pretoria routes, so attendance windows are usually the shortest of any area. Modular heat pump banks and BMS integration are common here.

Boiler Low Water Alarm — Centurion

Modular heat pump banks and BMS integration are common here.