UV Light Installation in Logan, UT

Is mold growing on the indoor coil in your Logan home?

If a technician found mold on the indoor coil in your Logan home, the coil needs a cleaning first, and then a UV light can help keep the growth from returning. The indoor coil is the set of metal tubes and thin fins that cools the air for your central air or heat pump. It sits in the air path, usually right on top of the furnace. Each summer it sweats water, and in the dark that damp surface can grow mold. Mounted next to the coil, a UV lamp bathes the fins and the drain pan in ultraviolet light to help keep them clean. Logan is about 19 miles northeast of Brigham City in Cache Valley, and we install UV lights in homes across town.

Warning signs of coil growth in Logan homes

A sour or earthy smell from the vents

Air that smells sour or earthy when the system starts often picks up that odor from growth on the coil it just passed through.

Weaker airflow than last summer

Growth and dust on the coil fins block air. Rooms that used to cool well may feel warmer, and the vents may blow softer. A clogged filter can do the same, so we check both.

Visible growth behind the access panel

Some systems let you see part of the coil or drain pan. Black, green or fuzzy patches there mean mold has a foothold.

The AC runs longer to cool the house

A dirty coil cannot move heat as well, so the system runs longer to reach the thermostat setting.

Common causes of mold on a Logan home's coil

Damp basement air

If your furnace and coil sit in a basement, the air around them may already be damp. That adds to the moisture the coil holds.

Water left on the coil after each cycle

When the AC shuts off, the coil stays wet. In a closed cabinet with no light, that water dries slowly.

A slow drain pan

A pan that drains slowly keeps a shallow pool under the coil. Growth often starts in the pan and spreads up onto the fins.

Dust from a worn filter or leaky return ducts

Return ducts that leak can pull in dusty basement or attic air. That dust coats the coil and feeds growth.

What to expect when we put a UV light in your Logan home

We look over the coil, drain pan, drain line, filter and return ducts first, and we tell you what we see. A coil with growth on it needs cleaning before a UV light goes in. The lamp helps prevent new growth, and it will not clear a thick layer that is already there.

We price the cleaning and the UV light for you before we start, so you can decide. Then we install the lamp where it covers the coil and pan, connect it and make sure it is running. We point out the view window if your model has one and remind you to switch the lamp off before anyone opens the cabinet. The bulb needs cleaning and replacing as it ages, and we tell you what to watch for.

UV light installation in Logan

Logan has older homes in established neighborhoods and newer subdivisions, and coil growth can show up in either. Cache Valley summers are hot and dry, but long afternoon AC runs still keep the coil wet for hours. Winters are cold, with sub-zero nights, and the furnace blower pushes air over that same coil all season. Visit our Logan service area page to see what else we do in town.

Related services in Logan

See the UV lights page for how the service works across Northern Utah. Leaky return ducts pull dusty basement and attic air into the system, and duct sealing in Logan closes those leaks. If your basement air stays damp, a whole-house dehumidifier can help. A yearly AC maintenance visit is when coil growth usually gets spotted.

Book a UV light visit in Logan

Call (435) 730-2536 Monday to Friday, 8 AM to 6 PM, or schedule online. If a technician already showed you growth on the coil, tell us when you call.