That Part Was on the Truck. Except It Wasn't.
Your tech shows up to a no-cool call, diagnoses a bad capacitor, reaches into the van... and it's not there. Per-van inventory tracking means every tech knows what's on their truck before they leave the shop.
TL;DR
Missing parts on the truck means wasted hours, frustrated customers, and lost revenue. Opsler tracks inventory per van, per warehouse, per location — with low-stock alerts that fire before you run out. Techs check stock from their phone before they leave the shop. Transfers between locations are logged automatically. No more guessing what's on the truck.
The $400 Parts Run
It's 2:30 PM on a Tuesday in July. Hundred and two degrees outside. Your tech Danny pulls up to a no-cool call — the third one today. He gets up in the attic, pulls the panel off the condenser, and puts his meter on the capacitor. Dead. Classic failure. He's seen a thousand of them.
He needs a 35/5 dual-run cap. Standard part. Should have six of them on the truck.
Except he doesn't. The bin is empty. Somebody used the last one yesterday on the Rodriguez job and didn't say anything. Maybe it was Danny himself — he honestly can't remember. Doesn't matter. The part isn't there.
Now Danny's making a parts run. Forty minutes round trip to the supply house — if there's no line. The customer is sitting in a 95-degree house with two kids and a dog, watching the clock. Danny's next appointment just got pushed back. That customer calls the office wondering where their tech is. Your dispatcher is juggling phone calls, trying to explain the delay.
One missing capacitor. Total cost? A $12 part turned into an hour of lost productivity, a frustrated customer, a backed-up schedule, and a tech who's now running behind for the rest of the day.
This happens constantly. Not just with capacitors. Contactors, filter driers, TXV valves, blower motors, run capacitors in every size imaginable. Your techs are carrying hundreds of parts across a dozen vans, and right now the inventory system is... what? A clipboard? A shared spreadsheet nobody updates? The honor system?
You know the honor system doesn't work. Every HVAC owner knows it doesn't work. But most of them don't have a better option because their field service software treats inventory as an afterthought — one big bucket for the whole company with no visibility into what's actually on each truck.
Per-van inventory with real-time stock levels and low-stock warnings.
Per-Van Inventory That Actually Works
Opsler gives every location its own stock levels — warehouses, vans, trucks, offices. Each van is assigned to a specific tech. Transfers are tracked. Alerts fire when stock drops. Here's how it plays out in practice.
Morning: tech checks van stock before leaving the shop
Mike opens the app, taps his van. Sees he's down to 1 TXV valve — his minimum is 3. Grabs 4 from the warehouse shelf and logs a stock transfer. Takes 30 seconds. His van is stocked, the warehouse count is updated, and it's all in the audit trail.
On the job: part used, stock updated
Mike installs a contactor at the Williams house. He logs the part used on the job. His van's contactor count drops by one. The part is tied to the job record — useful for warranty tracking later. If that contactor fails in six months, you know exactly which one went where.
Low-stock alert fires automatically
Mike's van hits 2 capacitors remaining. His minimum is set to 5. Opsler sends a WARNING alert. If it drops to 1, that becomes CRITICAL. The office sees it. Mike sees it. The part gets restocked before it becomes a problem — not after.
Full visibility across every location
Need a scroll compressor that's not on Mike's truck? Search by SKU or part name and instantly see what's at the warehouse, what's on Van #1, and what Sarah has on her truck across town. Transfer it, log it, move on. No phone calls. No guessing.
12 industry-specific part categories
Parts are organized into HVAC-specific categories — compressors, capacitors, contactors, refrigerant, coils, motors, and more. Not generic "widgets" and "supplies." Your techs find what they need because the system speaks their language.
Low-stock alerts with WARNING and CRITICAL severity levels so you restock before it's a problem.
The Cost of "We'll Come Back Tomorrow"
Let's be conservative. Say each of your techs has to bail on a job or make an unplanned parts run twice a month because something wasn't on the truck. Maybe they finish the job an hour late. Maybe they can't finish it at all and have to reschedule.
Two missed or delayed jobs per tech, per month. Eight techs. That's 16 disrupted jobs every month. At $400 average ticket value, you're looking at $76,800 per year in revenue that's either lost outright, delayed, or delivered with a side of customer frustration.
And those are just the direct costs. The indirect ones are worse. The customer who waited four hours in a hot house doesn't leave a 5-star review. The tech who's constantly running behind gets burned out. The dispatcher who spends her afternoon reshuffling the board isn't doing the work she should be doing.
A $12 capacitor caused all of that. Not because you didn't buy enough capacitors. Because nobody knew it was the last one.
Per-van inventory tracking doesn't make these problems impossible. Techs will still occasionally use a part and forget to log it. But it takes you from "nobody has any idea what's on any truck" to "we catch 90% of stock issues before they become emergencies." And in this business, 90% is the difference between running smooth and running ragged.
Frequently Asked Questions
Right from the Opsler app on their phone. When a tech uses a part on a job, they log it. When they grab parts from the warehouse before heading out, they do a stock transfer — select the parts, select the quantity, and the inventory moves from the warehouse location to their van location. The whole thing takes maybe 15 seconds. It works offline too, so if they're in a basement with no signal, the transfer queues up and syncs when they get back online.
Opsler fires a low-stock alert. There are two severity levels: WARNING (getting low, restock soon) and CRITICAL (you're about to run out). You set the minimum thresholds per part, per location. So you might set TXV valves at minimum 3 for each van but minimum 10 for the warehouse. When stock drops below the minimum, the right people get notified — the tech, the office, whoever you want in the loop.
Yes. Every stock movement is logged with a full audit trail — who moved it, when, from where to where, and which job it was tied to. If you need to know who used the last 35/5 capacitor and didn't tell anyone, you can find out in about 10 seconds. It also helps with warranty claims when you need to prove which part was installed on a specific job.
Opsler supports SKU and barcode fields for every inventory item. Your techs can search by part name, SKU, or scan a barcode to find what they need. It's especially useful when you've got dozens of capacitor sizes or refrigerant types and need to pull the right one fast.
As many as you need. Opsler supports four location types: WAREHOUSE, VAN, TRUCK, and OFFICE. Each van gets assigned to a specific technician. So if you've got a main warehouse, a satellite office, and 12 vans, that's 14 locations — each with its own stock levels, minimums, and alert thresholds. You get a complete picture of where every part is across your entire operation.
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