Programmers & Timeswitches

Programmers and time switches are used to control when domestic central heating systems operate by setting on and off schedules. This category includes mechanical and digital programmers, time switches, and related control units suitable for common UK heating installations.

Products are listed with clear specifications to help identify compatible replacements based on operating voltage (typically 230V AC), switching capacity, programme type (single-day, 7-day or multi-channel), and installation requirements for domestic heating and hot water systems. Installation and operating guidance is available via our product instruction library.

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FM Timer Module Variants
£19.95

Replacement Boiler Timer Modules – Mechanical Boiler Time Controls FM/1 Series TFC Group has been the leading supplier of mechanical timer modules to the UK boiler industry since the late 1980s, with over 20 million timers supplied to principal manufacturers. These timers remain…

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FM Timer Module Variants quantity

FM Timer Module Variants
Programmers & Timeswitches, Timers, Thermostats & Electical
£19.95 Add to basket
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OP-DIN 1 Module 1CH Time Switch

The OP-DIN Digital DIN-Rail Timer is a compact, single-module timer designed for precise 7-day and 24-hour programmable scheduling. Ideal for applications requiring reliable control, it features an easy-to-read LCD display and offers 6 On and 6 Off programmable slots.

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OP-DIN 1 Module 1CH Time Switch
Programmers & Timeswitches, Timers, Thermostats & Electical
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OP-FM1STU00 Timer Module 24 Hour
£15.79

This plug-in timer module is designed for seamless compatibility with major boiler brands, providing reliable daily scheduling with synchronous timing. Built for simplicity and durability, it operates without a manual override, making it ideal for consistent, fixed programming…

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OP-FM1STU00 Timer Module 24 Hour quantity

OP-FM1STU00 Timer Module 24 Hour
Programmers & Timeswitches
£15.79 Add to basket
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OP-FM1STUH0 Module With Override
£19.95

Product Description : The OP-FM1STUH0 is a versatile plug-in timer module designed for compatibility with top boiler brands, offering dependable daily scheduling. With a synchronous timer module that includes a manual override feature, it provides both fixed and user-adjustable…

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OP-FM1STUH0 Module With Override quantity

OP-FM1STUH0 Module With Override
Programmers & Timeswitches
£19.95 Add to basket
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