Existing Customers: Common Questions After Install

With each Drennen system, we have a 20 year workmanship warranty from the date of a completed post-test less than 4.0 pCi/L which covers any component we installed that fails as a result of how it was installed. This warranty does not cover systems that Drennen did not install, unless the service provided to the system by Drennen resulted in a post-test less than 4.0 pCi/L. The warranty is void if the home goes under structural changes or modifications. The warranty does not cover a system that has been damaged by natural disaster, other contractors/workers, or the homeowner/tenants.

In addition to the system warranty, every fan installed comes with a 5 year manufacturers' warranty. 

On your system, next to the alarm box, you'll see a U-shaped tube filled with either red or blue liquid. This is called a manometer (pictured to the left). The manometer has one end open to the environment while the other end is connected to the pressure source (in this case, the radon pipe). The fan connected to the radon pipe creates a vacuum which is what pulls that side of the liquid up. These levels being offset is the easiest visual cue that the fan is still running. If the levels are the same on both sides then the fan is no longer working. 

NOTE: Sometimes, the tube connecting the manometer to the radon pipe becomes disconnected or kinked. This will cause the manometer to read incorrectly.

A couple things can cause the alarm to go off. Most commonly, the system will alarm if it detects a pressure change. This pressure change can be caused by several things, most commonly either a sudden change in weather or the fan losing power for a brief moment. Make sure you check your GFI outlets and the breaker box to make sure there is not an electrical issue causing the fan to shut off! 

If your fan still has power, and the manometer is offset, then you likely just need to reset the alarm.

If the electrical is working but your fan isn't, you likely need a fan swap. Call our office to set up an appointment!

Another common reason for the alarm to go off is the battery needing to be replaced. The battery will typically last for 2 years. To buy a new battery, you'll need to check your store of preference (Amazon, Batteries +, Bulbs and Batteries, etc.) for an ER14250 battery.

If the fan is working, but resetting the alarm and/or trying a new battery didn't help, then you'll need to schedule a service call with our office so a crew member can take a look at your system.

1. Press firmly on the indented triangle above the RadonAway logo about halfway down the box and pull down to remove the cover and expose the battery

2. Remove the battery

3. Press and hold both the TEST button and the HUSH button for at least 30 seconds to drain the stored energy (if the system is still making  a draining noise after 30 seconds please continue to press the buttons until the noise stops)

4. Insert the battery (NOTE: all the lights might flash at you when this happens, that's okay!)

5. Approximately 30 seconds after insterting the battery the system should chrip at you. After this chirp, the only light that should be blinking is the green "SENSING" light (blinks once every 60 seconds). If any other lights are blinking after the chirp, please call our office.