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Packaged terminal air conditioner (PTAC) quarterly maintenance checklist

A quarterly PTAC unit round is short on purpose: it catches the wear items that fail between annual services. This checklist is sized for a tech with a phone. Every item says what to look at and the photo that proves the round happened. Work is commonly verified against manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.

Items
6
Photos required
9

Who runs it

The maintenance tech working the guest rooms or unit-by-unit round, one PTAC at a time between turnovers.

When in the schedule

Every quarter, walked with the room list so an occupied room gets caught on the next pass instead of skipped for the year.

The checklist

Every item, and the photo that proves it

The photo count on each row is what RTI would require before the item can be submitted. Copy the list as is, or load it into RTI and let the gate enforce it.

01

Filter and coils

  • Filter cleaned or replaced and the indoor coil face checked

    Filter pulled from the front grille, washed or swapped and reseated flat, indoor coil face behind it clean with no matting or bent fins.

    2 photos
  • Outdoor coil face clear at the exterior grille

    Rear condenser coil free of lint, cottonwood and dirt through the exterior louver, no bushes or debris packed against the outside face.

    1 photo
02

Condensate and base pan

  • Slinger and base pan managing condensate cleanly

    Base pan draining toward the slinger with no standing water, slinger ring free to throw condensate onto the condenser coil, no water overflowing the pan lip into the room or down the wall.

    2 photos
  • Optional drain kit flowing where one is fitted

    Where the unit is piped to a drain kit rather than slinger-only, the line is clear and draining, no back-up in the pan or staining at the outlet.

    1 photo
03

Seal, controls and operation

  • Wall sleeve seal and gasket intact

    Foam gasket around the chassis-to-sleeve joint continuous and compressed, no daylight or draft around the chassis, sleeve and exterior grille sound with no rain track marks below.

    2 photos
  • Unit heats and cools on a call with controls set right

    Heat and cool each commanded from the front panel or wall thermostat, discharge air responding, setpoint limit stops and any occupancy or unoccupied setback still set as intended, no error on the display.

    1 photo

What usually sends this back

The failures are almost always the evidence, not the work

  • Filter left loaded because the room was occupied on three straight rounds, so airflow drops and the guest turns the setpoint to the stop instead of calling it in.
  • Condensate slinger ring caked or the drain path plugged, so water sheets off the base pan and stains the wall under the sleeve or drips onto the sill outside.
  • Foam gasket around the wall sleeve crushed or missing, so outside air and rain track in around the chassis and the unit can never hold the room.

Run it with the Photo Gate

A checklist nobody can submit half-finished

Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 9 required photos exist. Approved walks roll into a branded turnover package with a tamper-evident record behind every line.

Submission state

Mandatory items answered6 of 6
Photos attached6 of 9
Submit locked, 3 photos missing

The gate is enforced on the server, so it holds even if the phone is offline when the walk happens.

Common questions

What does this packaged terminal air conditioner (ptac) quarterly checklist cover?
6 items across 3 sections, covering filter and coils, condensate and base pan, seal, controls and operation. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
Who should run this inspection?
The maintenance tech working the guest rooms or unit-by-unit round, one PTAC at a time between turnovers.
When in the schedule should this walk happen?
Every quarter, walked with the room list so an occupied room gets caught on the next pass instead of skipped for the year.
Why does every item ask for a photo?
9 of the 6 items call for photo evidence. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
What most often fails a packaged terminal air conditioner (ptac) quarterly inspection?
Filter left loaded because the room was occupied on three straight rounds, so airflow drops and the guest turns the setpoint to the stop instead of calling it in. Condensate slinger ring caked or the drain path plugged, so water sheets off the base pan and stains the wall under the sleeve or drips onto the sill outside. Foam gasket around the wall sleeve crushed or missing, so outside air and rain track in around the chassis and the unit can never hold the room.
Can I use this checklist in RTI?
Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper-evident audit trail.