Is there a backup incase of power failure to remember the program temp setting?. Will I have to re program the unit when power is restored?

I have had many power failures but I never had to re-program this unit. I am not sure how it does but does remember settings. Please note the Power failures we have seen here only lasted a few hours maximum. I have to reset all radio-clocks that is how I notice power failures...

Can the control be used on a frost free freezer as a refrigerator or should the freezer be manual defrost?

I was concerned with that so I wired the controller to only control the cooling circuit. The light, defrost timer and defrost heater are always powered. Have had no troubles with this setup in a standup freezer converted to beer server for years.

Can I use this to control an A/C unit?

Amazon ASIN B000E7NYY8 is a better unit for controlling an A/C. You can adjust the temperature swing.

how do you install the controller?

Hi there, what I did is enter the item name and model number on Youtube and searched for "how to install" There' s plenty of links. Here's the one I used - https://www.youtube.com/watch?v=6AZlvEBEjAA It's fairly easy but make sure to follow the instructions to the T or the controller could get fried. Hope this helped! Best of Luck-

Ranco Etc 111000 000 Electric Temperature Control

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🌡️ Stay in control, or risk falling behind the craft curve!

OEM CERTIFIED RELIABILITY - Trust the original manufacturer for unmatched safety and performance in commercial-grade temperature control.
BUILT FOR LONGEVITY BACKUP - Keep a spare on hand to avoid downtime in critical applications—perfect for remote or high-demand environments.
ROBUST INSTALLATION FLEXIBILITY - Designed for professional wiring with heavy gauge extension cords and secure mounting options to fit any commercial or home setup.
VERSATILE HEATING COOLING MODES - Easily switch between heating or cooling to optimize any setup from freezers to outdoor boilers.
ULTRA PRECISE TEMPERATURE MANAGEMENT - Maintain your environment within a 1-degree range for perfect fermentation, brewing, or refrigeration.

The RANCO ETC-111000-000 is a genuine OEM electric temperature controller designed for precise, reliable temperature regulation in commercial foodservice and specialty applications like brewing and fermentation. It supports both heating and cooling modes, offers 1-degree accuracy, and is engineered for durable, professional-grade wiring setups. Trusted by industry pros, it ensures safety, performance, and peace of mind with easy programmability and robust construction.

Specifications

ASIN	B0015NV5BE
Best Sellers Rank	#63,124 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #77 in Temperature Controllers
Brand Name	Ranco
Color	Multicolor
Customer Reviews	4.6 4.6 out of 5 stars (681)
Date First Available	March 8, 2008
Included Components	Light
Item Weight	1 pounds
Item model number	ETC-111000-000
Model Info	ETC-111000-000
National Stock Number	6530-01-524-9884
Part Number	ETC-111000
Product Dimensions	5 x 5 x 9 inches
Special Features	Digital

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RANCO ETC-111000-000 Electric Temperature Control

Description

Specifications

Common Questions