Where to place QR service tags on equipment

A QR service tag only helps if the customer can find and scan it without creating a safety or service problem. Use these placement principles across HVAC, water heaters, pool equipment, and electrical equipment.

Updated August 29, 2026

Universal placement principles

The practical standard

Choose a clean, stable, visible surface that a customer or site contact can reach safely, then verify the tag scans from a normal viewing position before the technician leaves.

The exact location varies by equipment, enclosure, site conditions, and the people expected to scan it. The technician on site is responsible for choosing a location that does not interfere with operation, access, safety information, or future service.

  • Do not cover the manufacturer nameplate, serial or model label, warning label, instructions, controls, vents, or inspection marks.
  • Keep the tag off removable access panels when that would separate it from the equipment or interfere with routine service.
  • Avoid hot, moving, wet, damaged, heavily textured, or contaminated surfaces that are not appropriate for a tag.
  • Prefer a location visible without a ladder, tool, or unsafe reach if a homeowner or site contact is expected to scan it.
  • Leave enough clear space around the code for a phone camera to frame it without obstruction.
  • Clean and prepare the selected surface as required for the supplied tag, place it squarely, and complete a real scan test.
Safety comes before scan convenience

Never direct a customer to open an enclosure, remove a panel, enter a restricted area, climb, or approach a hazardous surface just to scan a tag. Follow the equipment manufacturer, site owner, company policy, and applicable safety requirements.

HVAC equipment

Outdoor condensers and heat pumps

Look for a fixed exterior surface that remains with the unit and is easy to see from the normal approach. Keep clear of the manufacturer data plate, coil openings, fan discharge, electrical disconnect, access fasteners, and panels technicians routinely remove. Consider whether landscaping, fencing, or a neighboring unit will hide the tag later.

Outdoor HVAC condenser with a Tech Was Here QR service tag placed on a visible fixed panel
Example: a visible fixed condenser panel, clear of the manufacturer badge, coil openings, and service fasteners.

Furnaces and air handlers

Place the tag where a homeowner or technician can identify the correct unit without removing a cabinet door. Avoid burner compartments, electrical panels, filter-access paths, condensate areas, hot venting, and service instructions. In attics, crawlspaces, or tight mechanical rooms, do not choose a location that requires an unsafe reach.

Rooftop and commercial mechanical units

The primary scanner may be a facilities contact or technician rather than a tenant. Choose a stable location consistent across the site, keep it away from service panels and rooftop hazards, and use the unit name and location fields to distinguish similar equipment. Read more on HVAC QR service tags.

Water heaters and plumbing equipment

On a tank water heater, a visible part of the outer jacket may work when it is cool, dry, and clear of labels and service areas. Do not place a tag on flue components, draft hoods, burners, access covers, relief valves, drain valves, piping, controls, or any surface affected by heat or leakage.

Tech Was Here QR service tag installed on the outer jacket of a residential water heater
Example: a cool, visible part of the outer jacket, clear of the manufacturer label, relief valve, piping, and service access.

For tankless water heaters, pumps, softeners, filtration systems, or other plumbing equipment, use a fixed enclosure surface only when it does not cover instructions, displays, vents, or service access. Equipment may be installed in garages, closets, basements, or utility rooms, so include a plain-language location that helps the office identify it later.

If a unit is difficult for the customer to reach safely, optimize the tag for trained service access and make the equipment name and location especially clear. Do not encourage the customer to enter a restricted or hazardous space.

See how those placement choices support a direct return path on the plumbing service stickers with QR codes page.

Pool equipment

Pool pads often contain several similar components: pumps, filters, heaters, chlorination systems, and automation controls. Place each tag on the specific component it identifies, not on a shared pipe or nearby wall that could make the target ambiguous.

Avoid wet or leaking areas, removable lids, plumbing unions, hot heater surfaces, vents, control displays, warning labels, and enclosures that must be opened for service. Account for sun exposure, vegetation, pool chemicals, and routine cleaning when choosing among suitable surfaces.

Use distinct names such as “main circulation pump,” “spa heater,” or “pool filter” instead of a generic “pool equipment” label. A quick scan should leave both the customer and the office confident about which component needs attention.

See how those placement choices support a direct return path on the pool service stickers with QR codes page.

Electrical panels, generators, and EV chargers

Place the tag on a fixed, non-conductive surface near the panel, generator, or charger — never on live parts, breaker handles, the meter, disconnects, or wiring. Keep it clear of panel doors and any surface that must stay accessible for safe operation or service.

A generator or charger can be serviced by a different company than the panel, so use the equipment name and location fields to distinguish them. In a home with a main panel and one or more subpanels, name each one clearly (for example “garage subpanel” or “basement panel”) so the office dispatches to the right unit.

See how those placement choices support a direct return path on the electrical service stickers with QR codes page.

The technician finish check

A tag is not complete when it sticks to the equipment. It is complete when the physical placement, digital record, and public scan page all point to the same unit.

  1. Confirm the tag does not cover or obstruct anything important.
  2. Scan it from the position a customer or site contact will use.
  3. Verify the page identifies the correct equipment and service company.
  4. Check the manufacturer, model, equipment name, and location for obvious errors.
  5. Make sure the tag is visible and the code is not damaged or obstructed.
  6. If the placement is unsafe or unclear, correct it before leaving the site.

Once the tag is linked and verified, the unit has a direct path back to the service company. Learn what happens when the customer sends a request or talk with us about team onboarding.

Give the next serviced unit a path back to your team.

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