HONEYWELL ST9400C Thermostat Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White, 1

Product Information

While the above solutions are based on expert suggestions and might address the problem with the Honeywell ST9400C, it’s crucial to consult with a professional when diagnosing and resolving issues with your heating and hot water system. To start operating the 7-day programmable thermostat and select the correct operating modes, read user guide, which contains 18 pages in English. Some of our partners may process your data as a part of their legitimate business interest without asking for consent.

Honeywell Home 2-Channel Digital Programmer - Screwfix

It offers up to three ON/OFF switchings per day, plus each day can be programmed differently on a 5/2 or 1 day basis making it ideal for users whose heating needs vary from day to day. As this information is anonymised and aggregated it cannot be used to identify any individual user actions. As Boilers and radiators are installed by third parties, they do have to install in compliance with regulations and manufacturer standards to get the full benefit of the warranty. They are used only by Mr Central Heating or the trusted partners we work with, where they are used for marketing, statistics and personalised ads.

Statistics cookies or "performance cookies" are used to collect information on how the site is used. Given the age of the device and the persistent issues, sometimes, it’s more efficient to replace rather than repair. The main purpose of the Honeywell ST9400C thermostat is to regulate the temperature in the room where it is installed.

Honeywell ST9400C ST9400C1000 7 Day or 5/2 Day Two Channel

The programmer's Line of Text (LoT) display gives clear instructions whenever any button or slider is used for simple, hassle-free use. Power Supply Examination: Without a detailed circuit diagram for the ST9400C, another expert suspected that the problem might lie in the power supply section of the device. If the system functions correctly without the programmer, it is likely that the programmer is faulty and needs replacing.All our products are guaranteed for a minimum of 1 year (radiators vary - see individual product specifications, copper tube 25 years) but many offer longer warranties from the manufacturer, which you may need to register for.

Honeywell Home 7 Day 2 Channel Programmer ST9400C

To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. System Integrity Check: One approach would be to detach the programmer from its base and examine the system’s integrity using links. Certain capacitors can lose their functionality when they remain un-polarised, leading to the deterioration of the dielectric surface. A user with a 12-year-old CH/Water system, equipped with an Ideal Icos HE18 boiler, a hot water cylinder, a pump, a 3-way motorised valve, and a Honeywell ST9400C programmer, encountered issues after accidentally puncturing a pipe.

The better your problem and question is described, the easier it is for other Honeywell owners to provide you with a good answer.

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Following the system’s repair and restoration, the Honeywell ST9400C began exhibiting signs of malfunction.The Honeywell ST9400C, known for its reliable performance in controlling central heating and hot water systems, is a programmer preferred by many. Replacement: A straightforward solution proposed by several experts is simply to replace the malfunctioning programmer. The user sought advice on potential next steps, wondering if the issue lay with the programmer or another component in the system.