At 2.40 on a Tuesday morning, the alarm on freezer room 3 goes off: the room has drifted above its set point and is still climbing. The night shift lead rings the refrigeration tech whose number is saved in their phone. They come out, clear an iced-up evaporator and head home. At 7am the operations manager finds a line in the shift log, no service report, no reading after the repair, and a customer asking whether their stock stayed in range overnight.
Temperature-controlled storage runs on product, not office hours. A distribution centre or third-party logistics (3PL) cold store might hold chilled and frozen rooms, blast freezers, a cross-dock under refrigeration and a plant room that keeps all of it cold. The fault usually shows up at night or on a weekend. Getting the right licensed crew on site fast, and knowing the room came back into range, is where the morning goes.
OpsChase gives every cold store one board: your regular refrigeration, electrical and doors contractors are offered the job first, every attendance is followed up until photos and sign-off, and operations sees every open job across its sites without reading through the night shift texts.
From the alarm to a work order
Alarms still come from the plant and the building management system. When a person has to attend, the shift lead raises a work order from their phone against the site, the room and the item: the evaporator fan in freezer room 3, the rapid-roll door on the chiller dock, a compressor tripping in the plant room, a dock seal letting warm air onto the cross-dock. Add a photo, the reading on the room display and a note on what is at stake: product in the room, a dispatch window at 5am, a door that will not close.
Put the access note on the job too: which gate and which door the contractor uses at night, who meets them, the site induction and the cold-room entry rules, and whether the work needs the room emptied or can be done with stock in place. A tech who waits twenty minutes at a locked gate is twenty minutes of a room still warming.
Your contractors per site and per trade
The refrigeration firm on your service agreement for the metro distribution centre may not cover the regional depot, and the crew licensed for ammonia plant is not always the one that services the smaller rooms. Set the order of your contractors per site and per trade: the service agreement firm first and a separate after-hours electrician for plant room trips.
The jobs that fill a cold store week
- Rooms and plant. Room temperature drift, iced evaporators, compressor and condenser faults and defrost problems go to refrigeration.
- Power. Plant room trips, switchboard faults, lighting in the rooms and power to the docks go to electrical; standby power for the plant goes to generators; portable appliance checks go to test and tag.
- Doors and docks. Rapid-roll freezer doors, sliding cold-room doors, dock doors and seals go to doors and shutters.
- Floors. Cracked or heaving slab around the freezer rooms and trip hazards on the dock go to flooring.
- Roof. Leaks over the rooms, where water turns to ice on the floor and the product, go to roofing.
- Fire. Sprinklers, extinguishers, exit lights and fire doors go to fire protection.
- Hygiene and pests. Pest sightings in the dock and around the rooms go to pest control; spills and deep cleans go to cleaning.
- Site. Gate, alarm and security camera (CCTV) faults go to security.
Attend-by times set by the product in the room
Every job carries an attend-by time that fits the risk: within the hour for a freezer room climbing with stock in it, before the first dispatch for a dock door that will not close, within the week for a torn strip curtain or a light out in a corridor. Late jobs show against your response targets, so operations can see which rooms are still waiting and why, before the customer asks.
Contractor compliance before booking
Keep licence, public liability, induction and site-access details on file for each contractor through contractor compliance, so the operations team can check them before booking. Cold stores often run their own site induction and cold-room entry rules, so keep a note of which sites each contractor has been inducted for, and which firms hold the licences your plant needs.
Proof the room came back into range
Set proof templates per job type: before and after photos, the room reading once the repair is done, the service report, and a certificate where the work needs one. Proof of completion lives on the work order, so when a customer, an auditor or an insurer asks what happened in freezer room 3 that night, the attendance, the reading and the report are in one place instead of a camera roll.
Planned maintenance on the plant that keeps it cold
Compressor servicing, condenser cleans, evaporator checks, door and seal servicing, generator runs and fire equipment checks repeat at every site. With Assets & planned maintenance switched on, run planned maintenance through scheduling on the same queue as breakdowns, and each compressor, evaporator, door and generator keeps its own job and service history. When the same evaporator ices up for the third time in a month, every visit is on the asset, so the call between another repair and a replacement is made on the record.
What operations sees on one board
With every cold store on one board:
- Shift leads raise jobs at night with photos, room readings and access notes.
- Your contractors are sorted by site and by trade in the order you set, with after-hours cover for the plant.
- Attend-by times follow the product in the room and the next dispatch.
- Reports, readings and photos are attached to the work order.
- Operations sees every open job across its sites in one view each morning.
OpsChase is not a building management system, a temperature monitoring system or a warehouse management system. Those stay where they are; OpsChase is the contractor follow-up and proof once a person has to attend. For ambient warehouses and docks, see warehousing. For the wider picture, read about multi-site maintenance.
Starting with one site
Pick the site with the most after-hours call-outs. Import its rooms and plant, the contractor book and the trades each firm covers. Set roles for shift leads, site managers and operations. Set proof templates for refrigeration, electrical and door jobs. Raise the next alarm that needs a person into OpsChase instead of a call from a personal phone, then add the next site.
Read the cold storage industry page or book a demo with your site list and contractor book. Check pricing when you are ready to put every cold store on one board.
A freezer room alarm at 2.40am should not still be a question at 7am. Put every room on one board, get the licensed crew in before the next dispatch, and know which rooms are back in range and which are still waiting.