Who Sam repairs cool rooms for in Wangara
Sam Celesti looks after cool rooms and freezer rooms for Wangara's produce packers, food manufacturers, wholesalers and trade suppliers. The suburb is about 18 km from the Perth CBD, and its industrial area fills the block bounded by Wanneroo Road and Gnangara Road, with streets such as Hartman Drive and Prindiville Drive running through it. Sam is the lead technician, with 20+ years in commercial refrigeration and an ARCtick licence (AU55592), and he does the repair himself rather than passing it on.
Ring first and describe what the room is doing. The phone assessment costs nothing, and you will have a fixed quote before any work goes ahead.
First steps when a Wangara cool room goes warm
- Check power and the controller. A tripped breaker or a blank display is worth knowing about before Sam arrives. If the display shows an alarm code, write it down.
- Hold back the next delivery. If a load of produce or chilled stock is due, ask for it to wait or divert it. Adding warm stock to a failing room makes everything worse.
- Sort stock by risk. Fresh vegetables tolerate a warm spell better than meat, dairy or prepared meals. For potentially hazardous food, FSANZ says keep it at 5°C or colder; if it has been warmer for less than 2 hours it can go back under refrigeration, 2 to 4 hours means use it straight away, and 4 hours or longer means it goes in the bin.

Wangara's industrial area and what it keeps cold
Wangara grew up as the industrial base for Perth's northern corridor, and its refrigeration reflects that mix:
- Produce packers and distributors holding vegetables and fruit from nearby growers before they go to market or to supermarkets.
- Food manufacturers making sauces, meals, baked goods and specialty products, with cool rooms for ingredients and freezer rooms for finished stock.
- Meat and seafood wholesalers supplying restaurants and butchers across the northern suburbs.
- Beverage and hospitality suppliers keeping drinks and kegs cold for venues.
Compressor failures, condenser fan faults, refrigerant leaks and worn door seals all turn up here. So do controller and probe faults, which matter more in Wangara than most places for the reason below.
Produce cool rooms and the Wanneroo growing belt
Wangara sits on the edge of the City of Wanneroo's market garden country, and a good share of its cool rooms hold fresh produce. Those rooms are a different job from a freezer store or a drinks room.
Leafy greens, herbs and many vegetables are kept just above freezing with high humidity. That leaves a band of only a degree or two between a room that is doing its job and one that is freezing the stock nearest the coil or letting the rest wilt. A controller probe that has drifted, been knocked out of position, or sits in the wrong airstream can be enough to spoil a pallet without anyone noticing a fault.
On a Wangara produce room Sam checks more than whether the compressor runs. He looks at probe position and calibration, air distribution across the stacks, defrost settings and humidity, so the room holds an even temperature from front to back.
Other refrigeration help in Wangara
Wangara is one stop in Sam's cool room repair work around Perth. Packers who rely on ice for produce and seafood can book ice machine repairs for Manitowoc and other brands, and growers planning a bigger or better-insulated room can talk to Sam about cool room installation designed around field heat and the produce you actually store.












