Friedrich C-90B User Manual (English)

Other manuals for Friedrich C-90B

Service And Parts Manual12 pages

Brochure & Specs4 pages

Questions and Answers:

D
Dennis CortezJul 26, 2025
What to do if my Friedrich C-90B Air Cleaner fan and lamp are off?
- J
  James NavarroJul 26, 2025
  If your Friedrich Air Cleaner's fan and lamp are both off, ensure the power cord is properly plugged into a working standard household outlet. Test the outlet with another device to confirm it has voltage. Also, verify that the carbon filter is correctly installed and the top access cover is securely in place to engage the interlock switch, which is a safety feature and should not be bypassed. If these steps don't resolve the issue, the unit may need professional repair.
M
Michelle ChandlerAug 1, 2025
How to fix a Friedrich C-90B when the fan is on but the lamp is off?
- B
  barbara50Aug 1, 2025
  If the fan on your Friedrich Air Cleaner is on but the lamp is off, inspect the electronic cell for collector plates that may be touching; gently straighten and evenly space them. Also, check the electronic cell for broken ionizer wires. If you find broken wires, do not attempt further repairs yourself; instead, return the unit to an Authorized Warranty Station for repair.
W
Wanda SharpAug 6, 2025
What to do if my Friedrich C-90B Air Cleaner's fan and lamp are off?
- M
  Marie HughesAug 7, 2025
  If your Friedrich Air Cleaner's fan and lamp are both off, ensure the power cord is properly plugged into a working standard household outlet. Check the outlet's voltage with another device. Also, verify that the carbon filter is correctly installed and the top access cover is securely in place to engage the interlock switch. If these steps don't resolve the issue, the unit requires professional repair.
S
Steven WardAug 13, 2025
Why is the lamp off but the fan is on in my Friedrich C-90B?
- K
  Katrina RowlandAug 13, 2025
  If the fan is running but the lamp is off on your Friedrich Air Cleaner, let the electronic cell dry completely before putting it back in the unit. Unplug the unit and inspect the electronic cell for collector plates that might be touching; if so, carefully straighten and space them evenly. Examine the electronic cell for broken ionizer wires. If you find broken wires, the unit needs to be repaired by a professional.
M
Maurice CruzAug 19, 2025
What to do if the fan is off but the lamp is on in my Friedrich C-90B?
- M
  Michael RogersAug 19, 2025
  If the fan is off but the lamp is on in your Friedrich Air Cleaner, this indicates a failure that requires professional repair. Please return the unit to a Regional Authorized Warranty Station.

Friedrich C-90B Specifications

General

Brand	Friedrich
Model	C-90B
Category	Air Cleaner
Language	English

Summary

The Friedrich C-90B Electronic Air Cleaner

Safety First: Before Operating the Unit

Important safety precautions and operating guidelines before initial use of the air cleaner.

Operating Your Air Cleaner

Controls and Operation

Details the location and function of the unit's controls, including fan speeds and indicator lamp.

Economical Operation Benefits

Explains the cost-effectiveness of operating the air cleaner compared to a light bulb.

Cleaning and Maintenance

Important Cleaning Precautions

Highlights essential safety measures and precautions to take before and during cleaning operations.

Cleaning the Pre-Filter

Instructions on how to clean the pre-filter, including methods for dust, lint, and stain removal.

Cleaning the Carbon Filter

Guidance on cleaning the carbon filter, noting its limitations and replacement needs.

Cleaning the Electronic Cell (Dishwasher Method)

Detailed instructions for cleaning the electronic cell using an automatic dishwasher.

Alternate Cell Cleaning Method

Alternative method for cleaning the electronic cell when a dishwasher is unavailable or unsuitable.

Cell Discoloration and Cleaning

Explains cell staining, its causes (detergent, smoke), and how to address it.

Replacing the Electronic Cell in Cabinet

Steps and precautions for correctly reinserting the electronic cell into the air cleaner unit.

Activated Carbon Filter Information

Troubleshooting Common Issues

Problem: Fan Off, Lamp Off

Steps to diagnose and resolve the issue where the fan and indicator lamp are off.

Problem: Fan On, Lamp Off

Steps to diagnose and resolve the issue where the fan is on but the indicator lamp is off.

Problem: Fan Off, Lamp On

Identifies a specific failure condition where the fan is off and the lamp is on.

Major Components Overview

Technical Specifications

Service and Support

Regional Warranty Repair Stations

A map and list of authorized warranty repair stations for the C-90B model.

Limited Warranty Information

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Friedrich C-90B User Manual

Table of Contents