How to triage HVAC no-heat requests by phone

Triage by phone is not diagnosis by phone. Nobody can tell from a description whether a furnace needs an igniter or a new heat exchanger, and nobody should try. What the phone can do is three things: capture a fixed set of facts, rank the call by who is in the house and what the weather is doing, and get the right person told. The technician decides everything about the equipment.

That split holds whoever answers: the office on a Tuesday, the on-call technician on a Saturday, or an AI receptionist on the first cold night when every technician is in an attic. This guide lists the facts worth capturing, a way to rank urgency, what a receptionist records and what a technician decides, the diagnostic-fee question, and a sample intake record. The HVAC receptionist page shows the resulting call, and the lead intake page shows how the fields are chosen.

The information that matters

Field	Why it matters	Who acts on it
System type: gas furnace, electric, heat pump, boiler, mini-split	Decides who goes and what rides in the van	Dispatcher, technician
Approximate age and brand	Frames repair-or-replace before anyone drives	Technician
Thermostat state: set to heat or cool, display on, what it reads	Separates a dead system from a setting	Receptionist records; technician interprets
Breaker: tripped or on	A tripped breaker is a fact worth knowing, not a repair	Receptionist records; technician interprets
Filter: when it was last changed	A clogged filter is common and worth a note	Receptionist records
The symptom in the caller’s words: clicks, a smell, a noise, water around the unit	The technician’s first clue, unedited	Technician
Who is in the house: an infant, an elderly person, anyone on medical equipment	Sets the urgency tier	Dispatcher
Indoor temperature now, and the outdoor forecast tonight	Sets the urgency tier	Dispatcher
Address and building type: house, multi-family, business	Service area and access	Dispatcher
Maintenance-plan membership as the caller states it	Priority as your plan defines it	Office
Name, callback number, when the caller is reachable	The callback	Everyone

Three of those fields involve the caller checking something: the thermostat setting, the breaker and the filter. Those are the only checks a receptionist should ever ask for, and only if the company approves the wording. Nothing about gas valves, wiring, pilot lights or opening the unit. “The furnace clicks a few times and then nothing happens” gets written down exactly as said; it does not get explained.

Rank the urgency

A ladder, illustrative; set your own thresholds, including the outdoor temperature that counts as freezing for your area.

1. Safety first, before any other question. A carbon monoxide alarm or a gas smell means the caller leaves the house and calls emergency services, or the gas utility, before anything else. The approved line is said first, the request is marked urgent, and the on-call technician is tried. No troubleshooting of any kind.
2. Emergency tier. No heat in freezing temperatures with an infant, an elderly person or someone on medical equipment in the house. On-call transfer now, teammates in turn, and an urgent request if nobody picks up.
3. Same-day tier. No heat in freezing weather with healthy adults, or no cooling during a heat advisory with a vulnerable occupant. Handled as your emergency policy says.
4. Next available. No heat in mild weather, no cooling in mild weather, a noise, a short cycle. Captured with preferred days and worked in order.
5. Planned work. Tune-ups, plan signups, replacement quotes. Captured with the equipment details and the caller’s timing.

Write the tiers in your own words and change them with the season. A receptionist asks the questions you chose and records the answers; it scores nothing and decides nothing. Your dispatcher reads the record and decides who is called first.

What a receptionist captures, and what only a technician decides

The receptionist captures: every field in the table, the three permitted checks if you approved them, the emergency policy stated as you wrote it, the diagnostic fee only if you approved it, and the transfer attempts with their times. It reads back the name, the number and the address. A question the caller declines is marked unknown. The record lands in the team inbox and on your signed webhooks the moment the call ends, and CSV export and the API carry it elsewhere; there is no named dispatch connector.

Only a technician decides: the cause, the parts, whether the repair is worth making on a fifteen-year-old system, the price of the repair, and the arrival time. The receptionist diagnoses nothing, promises no arrival time and dispatches nobody. Your dispatcher assigns the technician and confirms the visit from the record.

That line is also the line between helpful and dangerous. A receptionist that “helps” a caller relight a pilot has crossed it; so has one that tells a caller with a carbon monoxide alarm to wait.

The diagnostic-fee wording problem

“What does it cost to come out?” is the second question on most no-heat calls, and it is where companies get into trouble. A figure said on the phone is a commitment, so decide in daylight which of three things the caller hears:

• An approved figure and an approved sentence. For example, the diagnostic fee and “the fee is applied to the repair if you proceed.” The receptionist says exactly that, and nothing about the repair total.
• An approved sentence without a figure. “The office confirms pricing before a technician is sent.” Said the same way every time.
• Nothing approved. The receptionist says it does not have that, takes the question for the office, and continues with the request.

The after-hours fee follows the same rule, and the receptionist never invents a figure or promises a total. If your fee changes with the season or the plan, update the approved wording the day it changes; the record of every call shows what was said. The script generator drafts the intake questions HVAC callers get asked, with the fee sentence beside them.

A sample intake record

This record is illustrative. The company, the caller and the address are invented, and it is not a measured result.

No-heat request, marked urgent. Caller: Lena Ortiz, at the number she called from, reachable all evening. Address: 48 Juniper Court, Elk Ridge, single-family house, in the service area. Equipment: gas furnace, about fourteen years old, brand not known. Symptom in the caller’s words: “it runs for a minute, blows cold, then shuts off.” Thermostat set to heat, display on, reading 59. Breaker checked, on. Filter changed last month. In the house: two adults and an elderly parent. Outdoor forecast: below freezing overnight. Maintenance plan: caller says yes, office to confirm. Emergency policy stated as written; after-hours diagnostic fee stated as approved. Transfer attempted to the on-call technician at 8:12 p.m., not answered; second teammate at 8:14 p.m., not answered. Request sent to the inbox and webhooks at 8:15 p.m.

Everything a dispatcher needs to make the call is there, and nothing a technician would have to unlearn: no guess at the cause, no promised time, no price beyond the one approved.

Set it up once, then read the records

Pick the fields from the table and remove the ones you never use; fewer, better questions beat a form read aloud. Define urgent in your own words, with this season’s temperature threshold. Approve the exact safety lines and nothing else; the three permitted checks are the ceiling, not the floor. List the on-call order and keep it current. Then read the first week’s records in the inbox and fix any field that comes back unknown too often. The after-hours page covers the night route, and the home services page shows the same approach for plumbers and electricians.