Improve Humidity with Kenmore Floor Humidifier Motors: Wiring Guide & Schematic

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SUMMARY

The discussion focuses on wiring a variable speed rheostat to control the fan speed of a Kenmore floor model humidifier (Model 758.154200) that features two motors, each with two coils. The motors are wired in parallel, with specific wire configurations: one coil has black and blue wires, while the other has red and white wires. Participants emphasize the importance of obtaining a schematic to determine whether the motors are simple AC motors or BLDC brushless motors with digital controllers. The user seeks guidance on the correct 110V wire connections for the motors.

PREREQUISITES
  • Understanding of AC mains wiring and safety protocols
  • Familiarity with rheostats and their application in motor control
  • Knowledge of motor types, specifically AC motors and BLDC motors
  • Ability to read and interpret electrical schematics
NEXT STEPS
  • Research wiring diagrams for Kenmore humidifier Model 758.154200
  • Learn about variable speed rheostats and their installation
  • Investigate the differences between AC motors and BLDC motors
  • Explore safety measures for working with 110V AC devices
USEFUL FOR

DIY enthusiasts, HVAC technicians, and anyone involved in repairing or modifying humidifiers and other AC mains connected devices.

Fred Frendley
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TL;DR
Control circuit is bad. I want to simple wire a variable speed rehostat in to control fans speed.
I have a Kenmore floor model humidifier. It has 2 motors. Each motor has 2 coils. One coil has a balck and blue wire and the other has a red and white wire. These motors are wired in parallel. The control panel is bad an I would like to add a rehostat to control the fan speed and use it that way. How do I wire the speed control in and what is the 110V wire connections to the motors. Schematic would be great.
 
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Fred Frendley said:
TL;DR Summary: Control circuit is bad. I want to simple wire a variable speed rehostat in to control fans speed.

Schematic would be great.
Yes it would. What have you found in your Google searching so far?

Also, what is your experience so far in working with AC Mains connected devices like this?
 
I second what @berkeman said.

Also, a schematic will tell us if those are simple motors, or BLDC brushless motors with digital controllers.
 
Model 758.154200
 

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Fred Frendley said:
Model 758.154200
Whelp, that helps a little with one of the 4+ questions we asked... :wink:
 
Was hoping the pic would define the type of motor and windings. How do I put voltage to these? each motor has 2 coils and 4 feed wires, 2 per coil.
 
berkeman said:
Yes it would. What have you found in your Google searching so far?

Also, what is your experience so far in working with AC Mains connected devices like this?
berkeman said:
anorlunda said:
Also, a schematic will tell us if those are simple motors, or BLDC brushless motors with digital controllers.

Fred Frendley said:
Was hoping the pic would define the type of motor and windings. How do I put voltage to these? each motor has 2 coils and 4 feed wires, 2 per coil.

berkeman said:
Whelp, that helps a little with one of the 4+ questions we asked... :wink:
 
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