Reyds.Heat pumps · Boilers · Steam

Alberton · Priority

Heat Pump Icing Up in Alberton

Ice forms on the evaporator coil and does not clear between cycles. This page covers how we diagnose and repair it on heat pumps in Alberton.

This fault is normally treated as priority work because the plant is still running but is damaging itself or wasting energy while it does.

Residential suburbs plus industrial areas around Alrode with boiler and steam plant. Sites with long, poorly insulated pipework lose more heat in distribution than most owners expect, which reads as a capacity problem at the outlet.

Area
Alberton, East Rand
Equipment
Heat pumps
Call
069 268 0988

What we find here

Likely causes

  • Defrost sensor or board failure
  • Low refrigerant charge
  • Restricted airflow from a dirty coil
  • Fan motor running slow or intermittently
  • Unit sited in a cold, unventilated position

How it is confirmed

Diagnostic sequence

  • Observe a full defrost cycle
  • Check defrost sensor resistance
  • Airflow and coil condition inspection
  • Charge verification

FAQs

Frequently asked questions

What causes heat pump icing up?

The usual causes are defrost sensor or board failure, low refrigerant charge, restricted airflow from a dirty coil, fan motor running slow or intermittently. Which one it is can only be confirmed by measurement, not by symptom alone.

How do you diagnose it?

Observe a full defrost cycle; Check defrost sensor resistance; Airflow and coil condition inspection; Charge verification. The readings are recorded so the repair decision is based on data.

Can I keep using the system in the meantime?

Usually yes, for a short period, but efficiency and component life are both being lost while the fault persists.

Do you attend this fault in Alberton?

Yes. Ekurhuleni call-outs are grouped by area so industrial and commercial visits can be attended on the same run. Alrode industrial plant supported for both breakdowns and planned maintenance.

Heat Pump Icing Up — Alberton

Alrode industrial plant supported for both breakdowns and planned maintenance.