Run every service call from dispatch to paid in one app.
A Master Tech in Your Pocket™
FieldCore HQ is field service software engineered for residential and commercial appliance repair and HVAC — from home washers and heat pumps to commercial 3-phase power, refrigeration and rooftop packages. AI triage and step-by-step troubleshooting on every call, schematics and parts suppliers built in — plus dispatch, truck stock, payment before you leave, and built-in accounting.
⚓Built by a Navy Mechanical/Electrical Repairman with 46 years of master field experience — 40 years running his own HVAC and Commercial & Residential Appliance Repair Business — to put it all in a technician’s pocket.
46 years of troubleshooting, on every service call
Stuck on a tough call? Enter the model, the symptom and any error code. FieldCore HQ triages the most common problems for that exact machine, walks you through starting its diagnostic mode, then guides you test by test until you find the fault — with the schematic, the part and the supplier one tap away.
AI triageWhirlpool Dryer · WED4815EW
Symptom: runs but no heat
Most likely causes
Thermal fuse openHigh
Heating element openMedium
High-limit / cycling thermostatLow
Step-by-step tests
Unplug the dryer before any electrical test
1 Thermal fuse — check continuity Fail
2 Element — about 10 Ω across terminals Pass
3 Check exhaust vent for restrictionNext
Service mode steps Wiring diagram Thermal fuse · 2 on truck
AI triage: the most common problems
Enter the model, the symptom and any error code (type it or say it). Get the top probable causes for that exact machine ranked High / Medium / Low, what the fault code means for that brand, and the root cause explained.
Start diagnostic mode on that machine
Step-by-step instructions to enter service or test mode on the model in front of you — the exact buttons and sequence — and how to exit when you're done.
Troubleshoot step by step
An ordered test sequence, cheapest and safest checks first, with expected ohms and voltages. Tap Pass or Fail on each test and save the results to the job. Safety warnings come first — power, capacitors, gas and refrigerant.
Schematics & wiring diagrams
Open the schematic, wiring diagram and parts list for the model right on the job. Add your own library of diagrams and OEM part numbers for your team.
Get the part
See if it's on your truck or in the warehouse. If not, the parts suppliers are already set up — one tap searches the model, and the part goes on the ticket.
Tap to talk — hands-free on the job
Hands full or gloves on? Tap the mic and say it. Symptoms, error codes (“F twenty-one” becomes F21), model numbers, your diagnosis, work completed and photo notes fill in by voice — in the diagnostics and across the whole job ticket.
Parts suppliers already set up — search the model in one tap:
Marcone
Encompass
Repair Clinic
Parts Dr
Johnstone Supply
Ferguson
Bluon
Parts Town
WebstaurantStore
AI diagnostics are included on Pro (30 a month, shared) and Small Team (2,000 a month, shared). AI guidance supports a qualified technician's judgment — always confirm against the manufacturer's tech sheet and follow safe work practices. Supplier names are trademarks of their owners; FieldCore HQ is not affiliated with them.
Made for your trade
One platform for Appliance Repair and HVAC
Residential and commercial work live side by side, each with its own brands, appliances, parts and pricing — so the app fits how your shop actually runs.
From a homeowner's washer or heat pump to commercial 3-phase power, refrigeration and rooftop packages — one app, with residential and commercial brands, parts and pricing kept separate.
Residential
From the laundry room to the attic
Home appliances and comfort systems — single-phase, one homeowner, one ticket.
Washers & dryers
Refrigerators & ice makers
Ranges, ovens & cooktops
Dishwashers
Heat pumps & air conditioners
Furnaces & mini-splits
Water heaters
Thermostats & controls
Commercial
From the kitchen line to the rooftop
Commercial systems with their own brands, parts and pricing — kept separate from residential.
3-phase power equipment
Walk-in & reach-in refrigeration
Ice machines
Rooftop packaged units (RTUs)
Commercial cooking lines
Commercial dishwashers & laundry
Boilers, chillers & make-up air
Steam tables & warmers
How a job flows
From the first call to the five-star review
Every step happens in the same app, on the same job, so nothing gets typed twice.
1
Dispatch
Drop the job on a tech's timeline. They get a text, you see them on the map.
2
On the way
The customer gets an “on the way” text and a live tracking link. One tap starts the job clock.
3
Snap & diagnose
AI reads the tag, triages the most likely problems and walks you through the tests.
4
Pull the part
Find it by brand and appliance, see what's on the truck, add it to the ticket.
5
Get paid
Card on site or a pay link. The invoice and inventory update themselves.
6
Get the review
A Google review request goes out automatically after payment.
Features
Everything the office and the truck need
Scheduling, dispatch, the technician app, parts, invoicing and customer communication — connected.
Dispatch board + live map
Drag jobs onto a timeline, see every tech on the map, and catch late or running-over jobs the minute they happen.
Technician app with tap to talk
Today's jobs, directions, photos and the job ticket on any phone. Tap the mic to fill in notes, diagnosis and error codes by voice. No app store needed.
AI reads the rating tag
Snap the model/serial tag and the model and serial numbers fill themselves in. Every visit is tied to the exact unit.
Parts by brand & appliance
Inventory organized LG › Washer, with photos. Truck stock, warehouse levels, and a clear “needs to be ordered”.
Estimates, invoices & payments
Build the ticket on site, take the card or send a pay link, and the invoice and parts deduction happen automatically.
Online booking & customer portal
Customers book online, approve estimates, pay invoices and follow their tech on a live tracking link.
Texts & email that send themselves
Appointment confirmations, reminders, “on the way” texts and review requests — plus two-way texting with customers.
Accounting & reports
Expenses, profit and loss, technician and sales reports, and QuickBooks sync on the plans that include it.
AI triage
Enter the model, symptom and error code. Get the most common problems for that machine, ranked most to least likely, with the root cause explained.
Step-by-step troubleshooting
How to start diagnostic/service mode on that model, then an ordered test sequence with expected readings. Mark each test pass or fail.
Schematics & wiring diagrams
Pull up schematics, diagrams and parts for the model on the job — and upload your own library of OEM part numbers and diagrams.
Parts suppliers built in
Marcone, Encompass, Repair Clinic, Johnstone, Ferguson, Parts Town and more are already set up. One tap searches the model.
AI tag reading
Snap the rating tag. Model and serial fill themselves in.
No more squinting at a tag behind a dryer or typing a 14-character serial with greasy hands.
Works on metal plates and stickers, indoors and on the roof
Every visit is tied to the exact unit for warranty and history
Fix any digit by typing or by voice
Pulls up schematics and diagrams for that model
On site10:42
Harbor Grill
220 Front St
Tag read by AI
Manitowoc Ice Machine
ModelIYT0420A-161Serial1102183495
Part
Water pump · 7623063
1 on Truck 1
Total$289.00
Collect payment
All brands › LG › Washer
LG24 Samsung31 Whirlpool42 GE28 Hobart9 Carrier17
Drain pump4681EA2001T · LG Washer 2 on truck
Door lock switchAGM76429501 · LG Washer4 in warehouse
Drive motor4417EA1002Y · LG WasherNeeds to be ordered
Parts & truck stock
The right part, on the right truck
Inventory organized the way techs think: by brand, then appliance — with a photo of every part.
Browse LG › Washer, or search by part number, brand or appliance
See what's on your truck, in the warehouse, or needs ordering
Load the truck or return parts in two taps
Parts come off inventory automatically when the job is done
Why FieldCore HQ
Built for repair work, not just scheduling
General field service apps handle the calendar. FieldCore HQ also handles the equipment.
What your techs needFieldCore HQGeneral field service apps
AI triage of the most common problems for the exact model and error code
Step-by-step troubleshooting and diagnostic-mode guides for the machine
Model & serial captured from a photo of the tag
Parts organized by brand → appliance, with photos
Truck stock + warehouse levels on the tech's phone
Separate residential and commercial price lists
Schematics, wiring diagrams and parts suppliers built in
Maintenance plans that create the next visit for you
About FieldCore HQ
Built by a master tech, for every tech who comes next
A Master Tech in Your Pocket™
FieldCore HQ was built by a Navy Mechanical/Electrical Repairman with 46 years in the field — including 40 years running his own HVAC and Commercial & Residential Appliance Repair Business. From home washers, refrigerators and heat pumps to commercial 3-phase equipment, refrigeration and rooftop packages, he built the tool he always wanted on the truck.
The goal is simple: put 46 years of master field experience in a technician’s pocket. The right unit on every ticket, the right part on the truck, the right questions on a tough diagnosis, and the paperwork done before you leave the job.
46years of master field experience
40years running his own HVAC & Appliance Repair Business
⚓ NavyMechanical / Electrical Repairman
Residential + CommercialHome appliances & comfort systems to 3-phase, refrigeration and rooftop packages
Pricing
Simple monthly plans. Every plan starts free.
Unlimited SMS on every plan. No setup fees, no contracts. Start with a 14-day free trial — no credit card required.
🚀 Founder’s Circle — first 50 companies only
The full 7-user Small Team plan for $149/mo forever
Locked in for as long as you stay subscribed, in exchange for an honest review after 30 days. Same 14-day free trial, no credit card required.
FieldCore HQ is field service management software built for appliance repair and HVAC companies, residential and commercial. It covers scheduling and dispatch, a technician app, parts inventory, estimates, invoicing and payments, online booking and a customer portal in one place.
Who built FieldCore HQ?
Built by a Navy Mechanical/Electrical Repairman with 46 years of master field experience — including 40 years running his own HVAC and Commercial & Residential Appliance Repair Business — to put that experience in a technician's pocket. It's the tool he wanted on his own truck: "A Master Tech in Your Pocket".
Who is it for?
Residential appliance repair shops, commercial kitchen and equipment service companies, and HVAC contractors — from a one-truck owner-operator to a multi-tech team. It's flexible enough for other field service trades too.
Does it handle commercial work, not just homes?
Yes. It's engineered for both residential and commercial systems — from home washers and heat pumps to commercial 3-phase power, refrigeration and rooftop packages — with separate residential and commercial brands, parts and pricing.
How does the AI diagnosis and troubleshooting work?
On site, the technician enters the model, the symptom and any error code. AI triage lists the most common problems for that machine ranked by likelihood and explains the root cause. It then gives step-by-step instructions to start the machine's diagnostic or service mode and an ordered troubleshooting sequence with expected readings, where the tech marks each test pass or fail. Results are saved to the job. AI diagnosis is included on Pro and Small Team.
Can technicians use it hands-free?
Yes. Tap to talk works in the diagnostics and across the job ticket: tap the mic and speak the symptoms, error codes, model numbers, diagnosis, work completed or photo notes, and they fill in automatically. Spoken error codes are cleaned up, so "F twenty-one" becomes F21.
Does it have schematics and parts suppliers?
Yes. Schematics, wiring diagrams and parts lists can be pulled up by model number on the job, and you can upload your own library. Parts suppliers including Marcone, Encompass, Repair Clinic, Parts Dr, Johnstone Supply, Ferguson, Bluon, Parts Town and WebstaurantStore are already set up, so one tap searches the model.
Is there a free trial?
Yes. Every plan starts with a 14-day free trial, and you can explore a live demo company right now without signing up.
Do my technicians need to download an app?
No. The technician app runs in the phone's web browser and can be added to the home screen like an app. It works on iPhone and Android.
How does the model and serial number reading work?
The technician takes a photo of the appliance or equipment rating tag. AI reads the model and serial numbers from the photo and saves them to the job, and the tech can correct them by typing or by voice.
Can I keep residential and commercial work separate?
Yes. Residential and commercial customers each get their own brand and appliance lists, parts inventory and pricing, so a commercial job never pulls a residential part by mistake.
How do customers pay?
Technicians can take a card on site or send a secure payment link by text or email. Customers can also pay from their portal. Payments flow straight into the invoice.
Can I bring my data from another system?
Yes. FieldCore HQ's import center brings in customers, jobs and invoices from a spreadsheet (CSV), and you can export all of your records any time.
Run your next Service Call on FieldCore HQ
Set up your company in minutes. Bring your techs on the same day.