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Guardian AC9400 Series - User Manual

Guardian AC9400 Series
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PM2.5
E-1
USE & CARE INSTRUCTIONS
©2016 Guardian Technologies LLC
LIMITED WARRANTY
To the consumer, Guardian Technologies LLC warrants this product to be free of defects in materials or
workmanship commencing upon the date of the original purchase. In order to be eligible for this Limited Warranty,
an original sales receipt or comparable substitute proof of purchase bearing the date of original purchase is
required. Refer to the original product carton or specific product/model page on the Guardian Technologies
website for warranty length for your particular model. This warranty applies only to the original purchaser of this
product from the original date of purchase. This warranty covers product purchased from authorized distributors only.
This warranty applies to repair or replacement of product found to be defective in materials or workmanship. This
warranty does not apply to damage resulting from unusual wear, commercial, abusive, unreasonable use or
supplemental damage. This warranty does not cover damage from unauthorized repairs or from any use not in
accordance with the instruction manual. Defects that are the result of normal wear and tear will not be considered
manufacturing defects under this warranty.
If this product should become defective within the warranty period, we will repair or replace any defective parts
free of charge. All warranty repairs must be completed by Guardian Technologies LLC. This warranty gives you
specific legal rights and you may also have other rights (other rights may vary from state to state in the U.S.A.)
To submit product under warranty the complete machine must be delivered pre-paid to GuardianTechnologies LLC.
Please include complete information including: the problem, the model number of the product, the day of purchase,
and a copy of the original sales receipt along with your name, address, and telephone (email optional). Address
returns to the attention of: Customer Service, at the address below. Additional questions or comments can be made
toll free to the number listed below.
Additional copies of the instruction manual can be obtained by accessing and
printing directly from our website or calling customer service.
USA and Canada
Guardian Technologies LLC
26251 Bluestone Blvd.
Euclid, Ohio 44132
1.866.603.5900
www.guardiantechnologies.com
Please go to www.guardiantechnologies.com to register your product. We consider the registration process important
to ensuring superior service to our customers, however submitting the warranty registration is optional and does not
affect your rights to utilize this warranty according to the conditions stated above.
Model No. AC9400 Series
3-Year Limited Warranty
English E - 1 French F - 1 Spanish S - 1
Date Purchased month ________ year _________
Customer Service 1.866.603.5900
www.guardiantechnologies.com
Use GENUINE Guardian Technologies replacement parts only.
REV0419
Large Room
Allergen & Odor Reducing Air Purifier
®

Questions and Answers

  • T
    Trevor OrtegaAug 4, 2025
    What to do if my Guardian Air Cleaner shuts off unexpectedly?
    • M
      michael81Aug 4, 2025
      If your Guardian Air Cleaner shuts off unexpectedly or does not operate, there are a few things you can check: * Ensure the unit is plugged into a working electrical outlet. * Check if the motor protector has been triggered. * Verify that the filter is correctly placed and locked in the unit. * Confirm that the front panel is securely latched.
  • M
    Mary HartAug 10, 2025
    Why does my Guardian AC9400 have an odor?
    • G
      Gary PerryAug 10, 2025
      If the discharged air from your Guardian Air Cleaner has an aroma or odor, it could be due to a heavily soiled filter. Inspect the filter and replace it if necessary. You can also try turning off the Ionizer.
  • A
    Andrew CochranAug 15, 2025
    What to do if odors and smoke are not removed by Guardian AC9400?
    • T
      Timothy HolmesAug 16, 2025
      If your Guardian Air Cleaner is not removing odors and smoke effectively, the filter may be heavily soiled. Clean or replace the filter to resolve this issue.
  • M
    Michelle AllenAug 21, 2025
    Why is there no air circulating from my Guardian Air Cleaner?
    • C
      Courtney PowellAug 21, 2025
      If there is no air circulating from your Guardian Air Cleaner, unplug the unit and check the filter. Replace the filter if necessary.
  • C
    Charles FordAug 27, 2025
    How to reduce noise level in Guardian AC9400 Air Cleaner?
    • C
      crystal89Aug 27, 2025
      If you notice an increase in the noise level of your Guardian Air Cleaner, make sure the filter is clean. Replace it if cleaning doesn't help.

Summary

Limited Warranty Information

Warranty Repair and Replacement Process

Outlines steps for repair/replacement, including pre-paid shipping and required information.

Air Purifier Usage and Care

Safety Warnings and Precautions

Prohibition of Self-Repair

Warns against attempting repairs, stating it voids the warranty and can be dangerous.

Product Components and Operation

Control Panel Overview

Identifies and describes the various controls and indicators on the air purifier's control panel.

Operating Modes and Functions

Details how to operate the unit, including fan speed, timer, sleep mode, ionizer, and auto mode.

Maintenance and Troubleshooting

Filter Replacement Procedure

Step-by-step guide on how to replace the air purifier filter, including warnings against washing.

Troubleshooting Common Issues

Provides solutions for common problems like the unit not operating or increased noise levels.

Guardian AC9400 Series Specifications

General IconGeneral
BrandGuardian
ModelAC9400 Series
CategoryAir Cleaner
LanguageEnglish

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