What does this snow melt system quarterly checklist cover?

13 items across 4 sections, covering controls and sensing, zone circulation and heat, slab surface and melt water, return to service. 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 hydronic or electrical service tech on the seasonal round, most usefully just before first snow and once mid-season.

When in the schedule should this walk happen?

Before the heating season and again mid-winter, since a sensor or zone that quietly dropped out is only found when a drive or walk fails to clear.

Why do these items ask for a photo?

10 of the 13 items call for photo evidence, 13 photos in all. 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 snow melt system quarterly inspection?

Slab sensor reading but the aerial moisture sensor iced or corroded, so the controller never sees precipitation and the system stays idle in a storm. A controller left in manual or hold from last season, so it either runs on a clear day or never activates on its own. One zone not circulating while the neighboring zones melt, so the cold lane isn't noticed until it ices over.

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.

Free checklist

Snow melt system quarterly maintenance checklist

A quarterly snow melt system 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.

Start free with this checklist Download as PDF

The checklist

Every item, and the photo evidence it needs

The photo count on each row is what RTI would require before the item can be submitted. Work the list here and watch the gate hold, or load it into RTI and let it enforce the real thing.

Controls and sensing

Controller mode, setpoints and season status verified
Controller in automatic and enabled for the season, slab and hold-off setpoints as specified, no lingering manual override from last winter.
Slab and aerial moisture/temperature sensors checked
Slab sensor reading a plausible temperature, aerial or gutter moisture sensor clean and undamaged, controller registering a simulated moisture-plus-cold call.
In-slab sensor housing flush and undamaged where fitted
Where the slab has an in-slab sensor, its cup flush with the paving, not gouged by plows, coated over or buried under a pile, top clean so it reads what the slab sees.
No photo
Controller history or storm log reviewed for missed runs
Run history or the owner's storm log showing an activation for each snow event since the last visit, any missed run or logged sensor or flow fault traced.
No photo

Zone circulation and heat

Each zone confirmed warming during a call
On an activation, every zone manifold loop running warm on hydronic, or every branch drawing current on electric, no dead lane across the slab.
Heat source or electric circuits energizing on demand
Boiler or heat exchanger firing and reaching supply temperature, or electric elements and their contactors pulling in when the controller calls.
Loop pressure or electric protection status read during a call
Hydronic loop pressure at the gauge within the fill setting with no air noise at the manifold, or on electric every branch breaker and GFEP showing no trip.
Manifold box or power panel closed, dry and labeled by zone
Manifold box, vault or electric control panel closed and latched, no water tracking in at pipe or conduit entries, each zone labeled to the area of slab it heats.

Slab surface and melt water

Heated slab walked for cracks, heaves and damage over the loops
No new cracks, heaved joints or plow gouges over the tubing or cable, joint sealant intact, no new anchors or saw cuts in the slab without the owner's record.
Melt water drainage checked at drains and slab edges
Trench drains and inlets open and flowing, melt water leaving the heated area rather than ponding or refreezing into ridges at unheated edges, steps and aprons.
Heated area kept clear of plowed piles, mats and stored items
No snow pushed onto the slab from unheated areas, no pile over the slab sensor, no mats, planters or pallets insulating part of a zone.

Return to service

Controller returned to automatic after the test call
Simulated call cleared, any manual run or hold ended, and the display showing automatic with the season enabled before the tech leaves.
Owner told of zone status and how to start a manual run
Owner's facility staff told which zones ran, any zone not clearing and what follows, and how to start a manual melt in a storm; findings logged against the system.
No photo

What usually sends this back

The failures are almost always the evidence, not the work

Slab sensor reading but the aerial moisture sensor iced or corroded, so the controller never sees precipitation and the system stays idle in a storm.
A controller left in manual or hold from last season, so it either runs on a clear day or never activates on its own.
One zone not circulating while the neighboring zones melt, so the cold lane isn't noticed until it ices over.

Common questions

6 answers

What does this snow melt system quarterly checklist cover?: 13 items across 4 sections, covering controls and sensing, zone circulation and heat, slab surface and melt water, return to service. 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 hydronic or electrical service tech on the seasonal round, most usefully just before first snow and once mid-season.
When in the schedule should this walk happen?: Before the heating season and again mid-winter, since a sensor or zone that quietly dropped out is only found when a drive or walk fails to clear.
Why do these items ask for a photo?: 10 of the 13 items call for photo evidence, 13 photos in all. 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 snow melt system quarterly inspection?: Slab sensor reading but the aerial moisture sensor iced or corroded, so the controller never sees precipitation and the system stays idle in a storm. A controller left in manual or hold from last season, so it either runs on a clear day or never activates on its own. One zone not circulating while the neighboring zones melt, so the cold lane isn't noticed until it ices over.
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.

Related checklists

Snow melt system AnnualSnow melt system annual maintenance checklistGlycol strength, pump and manifold service on hydronic, or full circuit and GFEP testing on electric, once a year15 items6 photos

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 13 required photos exist. Approved walks roll into a branded turnover package with a tamper evident record behind every line.