How do i get the part # from the control switch, cover shows nothing. Control switch looks a bit old, house was built in 1968. Original hvac system

Did you remove the cover and look on the back side of the cover? That's where I found mine. If so, and still no model number, I suggest you call Grainger, a business that may be able to help you with tracing the original and suggesting an appropriate replacement. My replacement has made a HUGE difference in the efficiency of my unit. JKE

What is the difference between the 2228 and the3515 controlers and are they interchangeable?

hi Jane, I think that they are basically the same. they both turn the blower on and shut it off at your settings,(125 and 100 norm) and they both have the high limit control,(also adjustable). To verify I found this phone number that you can call. Honeywell residential tech. support- 1800-468-1502 Hope this helps Lynn

why does the fan run when cold on auto setting

Hi, You need to set your temperature for the proper On and Off position on the dial. Please refer to the included instruction sheet . Thank you, Ruth

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Honeywell L4064B2228 Fan and limit controller. 5 inch insert

Honeywell L4064B2228 Fan and limit controller. 5 inch insert

Product ID: 9606447

Details

Brand
Honeywell
Color
Multicolored
Electric fan design
Exhaust Fan
Mounting Type
[ANY]
Power Source
Corded
Product Dimensions
2"D x 3"W x

⚡50W power efficiency

🔧3 wiring terminal options

🌡️125°F fan-on & 200°F high limit stop

R4031

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Description

🌬️ Master your airflow with precision and ease—because your space deserves the best.

DURABLE PORTABLE - Brushed finish and lightweight 13.7 oz design ensure long-lasting performance and easy handling.
EFFORTLESS INSTALLATION - Three versatile wiring terminals and push-in receptacles make setup a breeze—no electrician needed.
UNIVERSAL COMPATIBILITY - Designed to fit multiple competitive mounting holes, perfect for seamless replacements.
TRUSTED BRAND RELIABILITY - Honeywell quality with UL certification—industry-leading HVAC control you can count on.
PRECISION TEMPERATURE CONTROL - Fan activates at 125°F and shuts off at 100°F, with a high limit stop at 200°F for ultimate safety.

The Honeywell L4064B2228 is a 5-inch fan and limit controller engineered for precise temperature regulation and easy installation. Featuring three wiring terminal options, push-in receptacles, and compatibility with various mounting holes, it delivers reliable performance with a 50-watt power rating. Ideal for both commercial and residential HVAC systems, this UL-certified controller ensures efficient air circulation and safety with fan activation at 125°F and a high limit stop at 200°F.

Specifications

ASIN	B00097BE5O
Best Sellers Rank	#49,116 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #27 in Limit Switches
Blade Length	4 inches
Blade Material	Plastic
Brand Name	Honeywell
Collection Name	Fan Controllers
Color	Multicolored
Connector Type	1/4'' Female Connectors for Male Pins
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.5 4.5 out of 5 stars (321)
Electric Fan Design	Exhaust Fan
Finish Type	Brushed
Global Trade Identification Number	00085267000208, 00852670002088
Included Components	Cord
Indoor Outdoor Usage	Indoor
Installation Type	hardwired
Item Dimensions D x W x H	2"D x 3"W x 5"H
Item Weight	16 ounces
Manufacturer	Honeywell
Material	Copper
Model Name	L4064B2228
Model Number	L4064B2228
Motor Type	Brushless
Mounting Type	[ANY]
Number of Packs	1
Number of Power Levels	3
Number of Speeds	3
Part Number	L4064B2228
Power Source	Corded Electric
Recommended Uses For Product	Air Circulation, Cooling
Room Type	All rooms
Size	4 inches (L) x 4 inches (W) x 4 inches (H)
Special Features	Portable
Specification Met	UL
Style	Modern
Switch Type	Limit Switch
Theme	Modern
UPC	085267000208 784497966543 852670002088 736983707420
Unit Count	1 Count
Voltage	120 volts_of_alternating_current
Wattage	50 watts

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