Radon System Not Working? We'll Get It Running.

Radon Fan Repair in Lancaster County

A radon mitigation system isn't install-and-forget. The heart of the system is the inline fan that runs continuously to keep radon pulled out from under your slab — and like any motor running 24/7, it eventually wears out. Radon fans typically last several years to over a decade, but when one fails, your home quietly loses its protection and radon levels climb back up without any obvious sign. That's why knowing how to read your own system matters.

How to tell your system has a problem

• The manometer has leveled out. That little U-shaped gauge on the vent pipe shows a pressure difference when the fan is pulling. If the two columns of liquid are even, the fan is no longer moving air — the single clearest sign of a failed fan.
• The fan has gone silent or is making new grinding, humming, or rattling noises. A healthy fan runs with a steady, quiet hum.
• A system alarm is sounding — many systems have an audible or visual alarm tied to the pressure gauge.
• A recent radon test came back high on a home that already has a system — a strong hint the system has stopped performing.

Repair or replace

Often the fix is a fan replacement — the motor is the wear item, and swapping it restores full suction. But not every problem is the fan: a cracked or disconnected vent pipe, a failed seal that's letting the system short-circuit, a blocked pipe, or a manometer that's simply dried out can all mimic or cause a performance drop. We check the whole system — suction, seals, piping, and the fan — so you're not just replacing a fan that wasn't the real problem.

Inherited a system you don't understand?

If you bought a home with a radon system already installed, it's worth having it checked — you often have no records of when the fan was installed or when the home was last tested. A quick look at the manometer and a fresh test tells you whether the system you inherited is actually protecting you.