Fault guide
Cold Room Not Cooling — Repairs in Sandton
A cold room that runs but does not cool is losing the battle against heat load. The cause is usually refrigeration, airflow or control related, and the sequence of diagnosis matters more than guessing at parts.
Symptoms
- Temperature climbing above set point
- Compressor running but room warm
- No frost on the evaporator
- Fan running but no cooling
- Compressor hot
Possible causes
- Refrigerant leak or low charge
- Compressor not pumping efficiently
- Condenser fouled or fan failed
- Evaporator iced up
- Expansion device fault
- Controller or sensor reading incorrectly
Safe basic checks
- 01Check the set point on the controller has not been changed
- 02Confirm the condenser is not blocked and the fan is running
- 03Check the evaporator is not iced over
- 04Confirm the door is closing and the seal is intact
When to call a professional
If basic checks do not identify the cause, stop and call a technician — refrigeration diagnosis requires gauges and qualified testing.
Do not attempt electrical, refrigerant or internal mechanical work. Call 069 268 0988.
Repair options
Refrigerant leak repair, compressor repair or replacement, condenser cleaning, evaporator defrost and repair, expansion device repair, controller or sensor replacement.
Maintenance prevention
Planned maintenance with condenser cleaning, defrost checks and refrigerant leak testing prevents most no-cooling faults.
Speak to a technician
069 268 0988 012 546 6670 WhatsApp usFor urgent cold room breakdowns, call or WhatsApp to check technician availability for your site.
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Cold Room Not Cooling — book a repair
Contact us to check technician availability for your site in Sandton. Send your machine make, model and fault description and we will advise on the next step.