Reefer and cooling units
When the fridge stops with meat, fish or pharmaceuticals inside, the clock is running against you. We handle unit start failures, belts and pulleys, temperature sensors, pressure switches and gas loss, plus Thermo King and Carrier Transicold alarm codes. These jobs go to the front of the queue, because the load does not wait.
When a refrigeration unit fails it is not just a truck that stops: it is an entire load. Most thermal breakdowns on the road are electrical (connectors, blower motors, auxiliary batteries) or refrigerant-side (slow leaks in stone-pelted condensers), and both families allow a good share of roadside repair.
Before opening anything, read the unit display: Carrier and Thermo King alarm codes say a lot (low voltage, high discharge pressure, start failure). With the code in hand the intervention narrows and saves half an hour of blind testing.
What never to do
- Do not open the box to check the load
- Do not reset the unit repeatedly — it wipes the fault history
- Do not wait until the cold chain is already broken to call
- Temperature alarm. The display reports deviation from setpoint: act before the load climbs out of chain.
How it works
Read the alarm code, check supply voltages and earths, inspect condenser and evaporator visually. Electrical faults get repaired from portable stock; refrigerant leaks are traced with an electronic detector and recharged with exactly the gas and charge stated on the unit plate, leaving a temperature log for the receiver.
- 1Read the alarm
Display code plus the unit's stored temperature log.
- 2Electrical circuit first
Voltages, connectors and blowers: some 70% of stoppages.
- 3Refrigerant circuit
Electronic leak trace, repair, recharge to plate specification.
- 4Temperature report
Deliverable log proving the cold chain held.
Service
24 h reefer callout. Diagnosis + electrical or leak repair + temperature report.
Blow the condenser clean with compressed air weekly in hot weather and check the unit's belt tensioner: a dirty condenser spikes pressures and kills expensive compressors.
AP-7 · Barcelona
The final run into the metropolitan area: traffic turns urban, stops come more often, and any breakdown here hits deliveries with fixed time slots.
Port, Zona Franca, Mercabarna, C-31/C-32/B-20 access. Extreme urban-heavy traffic mix. Fixed radars km 150-155.