Is this a replacement for the 1F83 0422? If not, what is? If so, will the old 1f83 wall plate work?

This unit is not the one I ordered, so I returned it because it did not fit. Sorry I cannot answer your question. You would need to contact a qualified supplier for this question.

My thermostat's back light is on all the time. Is this correct ? Manual shows a "back light button" on the top of the thermostat. This does nothing

The one I replaced was also on all the time. So I did not even question the fact that it's on all the time. Not sure, sorry.

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Emerson 1F85U-22NP Non-Programmable Thermostat

Emerson 1F85U-22NP Non-Programmable Thermostat

Product ID: 298518270

Details

Brand
White-Rodgers
Model Name
1F85U-22NP 80
Product Dimensions
16.3D x 15.2W
Controller Type
Hand Control
Special Feature
Auto Lockable
Colour
3.75

💡Large backlit LCD display

🔒Keypad lockout security

⚙️3-stage HVAC compatibility

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€ 132.50

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In stock

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Description

🔥 Stay cool, stay in control — the thermostat that means business! ⚡

SMART SECURITY - Keypad lockout prevents accidental changes—control stays in your hands
CLEAR VISIBILITY - Oversized backlit display ensures easy temperature reading anytime
EFFORTLESS SETUP - Built-in level and intuitive menu for quick, no-fuss installation
TRUSTED DURABILITY - Backed by 3-year warranty and 100+ years of Emerson HVAC expertise
UNIVERSAL HVAC COMPATIBILITY - Seamlessly controls single & multi-stage heating, cooling, and heat pumps

The Emerson 1F85U-22NP is a non-programmable, battery-powered thermostat designed for easy installation and reliable temperature control. Compatible with single and multi-stage HVAC systems, it features a large backlit LCD, keypad lockout, and auto changeover for seamless comfort management. Supported by Emerson’s century-long HVAC legacy and a solid warranty, it’s the smart choice for professionals seeking straightforward, dependable climate control.

Specifications

ASIN	B017ES1OVO
Backlight	Yes
Brand	Emerson
Colour	3.75
Control Method	Touch
Control Type	Button Control
Controller Type	Hand Control
Customer Reviews	4.5 out of 5 stars 91 Reviews
Display Size	5 Inches
Display Type	LCD
Global Trade Identification Number	00786710552427
Included Components	2 AA Batteries, Thermostat, User Manual
Item Dimensions D x W x H	16.3D x 15.2W x 10.8H Centimeters
Item Type Name	Programmable
Item Weight	277 g
Manufacturer	Emerson Climate Technologies
Manufacturer Part Number	1F85U-22NP
Model Name	1F85U-22NP, 80 Series Thermostats
Model number	1F85U-22NP
Mounting Type	Wall Mount
Number of Batteries	2 AA batteries required. (included)
Power Source	Battery Powered
Product Dimensions	16.3D x 15.2W x 10.8H Centimeters
Product Features	Auto Changeover, Lockable, Low Voltage, Temperature Display
Product Style	1F85U-22NP (new model)
Shape	Rectangular
Smart Home Compatibility	Not Smart Home Compatible
Special Feature	Auto Changeover , Lockable, Low Voltage , Temperature Display
Specific Uses For Product	Air Conditioner, Heat Pump
Temperature Control Type	Manual
UPC	786710552427
Unit Count	1.0 Count
Voltage	24 Volts

Reviews

A**2

7.10.2024

G**K

16.12.2025

T**Z

27.08.2023

M**S

9.04.2025

J**.

31.08.2025

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