Aprilaire Humidifier Service Light Keeps Blinking [FIXED]

Aprilaire Humidifier Service Light Keeps Blinking [FIXED]

Does the Aprilaire humidifier service light keep blinking? I’m so glad you asked! It’s a really simple fix for this issue and we’ll walk you through it step by step, but first let me tell you why your Aprilaire humidifier is blinking in the first place.

There are two possible reasons:

Either there is water left in the tank that needs to be drained or there is some sort of problem with your wiring system that needs to be fixed before we can proceed.

What do you think might be the reason? 

Let’s start by draining any leftover water from your tank and see if it solves our problems!

  • Draining the tank is a simple process – all you need to do is locate the valve at the bottom of your humidifier and turn it counterclockwise to release any water that might be inside. Be sure to empty any excess water from the surrounding area so you don’t end up with a big mess on your hands! 
  • Once you’ve released all of the water, go ahead and give your humidifier a good clean before putting it back together. This includes brushing away any built-up mineral deposits or other debris that might have accumulated over time.

Now, let’s see if this solved our problem! If not, then we’ll need to move on to checking our wiring system.

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Aprilaire Humidifier Service Light Keeps Blinking

Wiring problems can come in several different forms – the most common of which is something called “phantom cycling.” This usually happens because there’s some sort of disruption within your electrical system, like when loose wiring makes contact with moist surfaces or wires that are too close to each other. If you suspect your wiring system might be the culprit here, then please call an electrician out to take a look at it for you.

Why is Aprilaire humidifier red fill light on?

There are a few potential reasons why the Aprilaire humidifier red fill light might be on. One possibility is that there is no water in the tank, so the unit is unable to function. Another reason could be that the tank is full of water but it’s not flowing properly into the unit, which would trigger the red fill light. If this is the case, you may need to clean the filter or replace it. Finally, if the humidifier is running but still triggering the red fill light, it could mean that there’s something wrong with the water flow and you’ll need to call a technician to investigate further.

No matter what’s causing your Aprilaire humidifier’s red fill light to come on, it’s important to address the issue as soon as possible. A lack of humidity can cause all kinds of issues, which is why you need to fix the problem quickly. Luckily, most humidifier red light problems are easy to remedy yourself, so it doesn’t matter if you’re not an expert.

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Aprilaire Humidifier Red Fill Light Fix

  • A few things that may be causing your Aprilaire humidifier’s red fill light include:
  • The tank is empty or there isn’t enough water in it for it to function properly.
  • Clean filter (located on the back of unit)
  • Make sure the float switch located on inside of the upper chamber has not moved too close to the upper heater element (replace if necessary)
  • Float valve needs cleaning (remove and soak in vinegar for 30 minutes)
  • Float valve needs replacing (replace with part 0-7660, sold in the humidifier accessories section of Aprilaireparts.com)
  • If you’ve tried all these fixes and your Aprilaire humidifier’s red fill light is still on, it could be a problem with the unit itself or there may be a wiring issue. In this case, it’s best to call an expert to handle the problem for you. He/she will let you know if parts need fixing or replacing and what other causes your red fill light might be indicating.

How to fix Aprilaire steam humidifier yellow light?

Some models of Aprilaire steam humidifiers have a yellow light that will come on when the unit is in standby mode. To fix this, you’ll need to press the “Auto” button and then the “On/Off” button to restart the unit. Once it’s turned back on, the yellow light should go off.

If your Aprilaire humidifier has a red fill light as well as a yellow standby light, it means there’s something wrong with the unit and you’ll need to call an expert to investigate further.

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