Honeywell Home 7 Day 2 Channel Programmer

7 reviews

£75.94 (Inc. VAT)

Manufacturer Direct in 2 - 7 Days


Plumbworld has the lowest price for this product!


ST9400 is a twin channel programmer which has been designed for controlling both heating and stored hot water in complete central heating systems. These can be controlled completely independently to allow operation in the most energy efficient way possible. They can also be set as a mini programmer for older style gravity circulation hot water systems, where there isn’t an interlocking control valve.

The ST9400C is a full seven day programmer that gives brilliant flexibility including up to three on/off changes per day. Additionally each day can be set differently. They are ideal for when the user has different heating requirements from day to day. ST9400C can also be set to 5/2 day or 1 day programme during fitting.

All ST9400 models incorporate the LCD display that gives clear English instructions whenever any controls are used. This means that installers and importantly users can use all of the controls reliably, without the use of an instruction manual. ST9400C also benefits from a ‘Holiday’ mode allowing deactivation of the heating for a specified number of days.


Features and Benefits:

  • Large backlit LCD display provides text feedback to help while programming.
  • Factory set date and clock.
  • Automatic summer and winter 1 hour time change.
  • Permanent or temporary override features.
  • Select from 3 different built in programmes.
  • Programme indicator lights let you know what’s going on.
  • Conveniently fits on industry standard back plates.
  • Direct replacement for Honeywell Home ST6400 models.
  • Any programmed settings retained permanently in non-volatile memory
  • Set up to 3 on and off times per day.
  • ‘Holiday’ mode button.
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Honeywell Home 7 Day 2 Channel Programmer

£75.94 (Inc. VAT)

Stock status: Manufacturer Direct in 2 - 7 Days

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365 Day Returns

Returns Policy - Changed Your Mind?

If you change your mind about the product when you receive it you can notify us any time within 365 days and return it for a full refund at your own cost. Any refunds will be made within 30 days of receiving your returned item. You are expected to cover the cost to return the item and your initial delivery charge will not be refunded.

More details here

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Prices last checked on 29/07/2021
All prices are inc VAT and include delivery charges

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7 Product Reviews

  • Paul Jarram
    5/ 5

    This was a replacement programmer for an older Potterton ep2002. Wiring is different from my old one as you will need to have a patress box sink I to the wall to accommodate.accommodate the extra wiring, unless you have an old Honeywell programmer then you should find it a straight replacement. Easy to set up and use.

  • J Dix
    5/ 5

    A direct replacement for previous model, ST6400C, and very easy to fit. I like the back lit display on this model, makes it easier to read settings. I have been very pleased with my purchase, it is simple to operate and efficient. A good model and excellent service from supplier.

  • Pam Smith
    5/ 5

    Excellent service and excellent price. Boiler wouldn’t work without programmer, previous one had packed so we wanted it in a hurry. arrived earlier than estimated.

  • Faulty control
    5/ 5

    Very good product. Easy to replace old one. Exce!!ent service, delivered in two days. No issues.

  • Brian
    5/ 5

    No problems at all and used existing backplate. Good service and knowledgable staff

  • Martin Mccall
    4/ 5

    Have fitted 5 of these now and they look good and work well but have had to replace one that would not switch the heating on if the heating and water were programmed to come on together this seems tobe a common fault

  • Mike Smith
    4/ 5

    Easy to fit, although as a replacement unit I was able to leave the previous backplate on the wall which simplified the task.