Is Radon Fan Working?

Written by: Kate Holder

Category: Uncategorized

Published: November 4, 2021

Step 1. Find your system MANOMETER. A manometer is a U-shaped tube filled with fluid(red, blue, yellow), it is also called Gage Fluid. It’s a visual gauge that tells you if your radon fan is running and at what static pressure.

Where is manometer ?

All active radon systems with fan usually will have a manometer. It is mounted on the pipe BELOW the Fan or next the the collection point. (  usually in the basement, closet, attic or garage )The exception is a passive radon reduction system, it does not have fan, not manometer.

Is the manometer showing radon level?

Answer is NO. Manometer has nothing to do with Radon level in the house. Manometer is measuring pressure (suction power) of the system. The suction created by the radon fan draws the fluid up on one side of the gauge. One side on manometer will have a clear soft tube which connects manometer and radon vent pipe. The other side on manometer is left open( its normal, it must be open. do not close it).

Step 2. Check the fluid levels. Are they Different? if YES, that’s good! The radon fan is working. Call right away Radon Mitigation provider if levels have changed from the Initial installation level. When liquid level is higher or lower than original, it means system resistance has changed., something below or above the fan is not allowing air to move at the same volume . Are the fluid levels equal? This is not good; your radon fan is not operating.

Step 3. Check the Electrical power connection. Is Your Radon Fan Really Dead? There are several things that may have caused the fan to shut down and you’ll want to check before calling a radon contractor to replace the fan. Please make sure your fan has electrical power. Check fan electrical switch. Did the breaker that your radon fan is wired to trip? Is the fan unplugged? Touch radon pipe, place your ear next to the pipe. If it is not vibrating and not making suctions noise, it time to replace fan.

Unfortunately, the fan is an electrical component of the system, and it has its life span too. It won’t last forever and must be replaced once in a while to keep the radon system operational.

Have questions about radon fan ? Call for a FREE Radon Consultation ☎  Office 240-308-5434