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Honeywell ST9400C Programmer (88608)

Separate timing. 2-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. Building Regulations compliant, WEEE, RoHS.

  • 7 Day Programmable
  • 1, 2, or 3 On/Off Periods per Day
  • Digital Display
  • Suitable for Gravity-Fed & Fully Pumped Systems
  • 3 Pre-Set Programmes
  • 2 Wire Installation
  • Backlit Display
  • Battery Back-Up
  • Automatic BST/GMT Time Change
  • 1 Year Guarantee

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£79.99INC VAT
Was £89.99 Save £10.00 (11%)

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Honeywell ST9400C Programmer is rated 3.3 out of 5 by 42.
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Rated 5 out of 5 by from All good Firstly I've only had this item a couple of days so the reliability score is, ironically, not that reliable but hopefully it will be accurate. It was purchased to replace a second Drayton LP722 programmer which failed within 6 months, the previous one only lasting 2 years. Hopefully this one will have a longer lifespan. Mounting plate compatible with the Drayton so it was an easy remove and replace, no wiring to be done. Honeywell provide a compatability chart on their website too so you can check. The programmer has plenty of functions and features like boost times and holiday modes and it was a doddle to set up. It seems well built and worked straight out of the box.
Date published: 2016-11-01
Rated 1 out of 5 by from Built-in unreliability. Had one of these fitted 2 years ago, and we've just had to replace it. As other reviewers have said, it's about the most expensive controller in the Screwfix book and it seems like it's designed to pack up after a couple of years. The lights come on, but it doesn't tell the boiler to start up. Keep pressing buttons and it may work, or may not. Had to buy another unfortunately, a) to prove the first one had packed up, and b) to avoid the cost of an electrician to fit another type. Don't do it, look by all means then move on to a cheaper product. Had to give it one star for reliability because there isn't a "no star" option.
Date published: 2016-10-11
Rated 3 out of 5 by from IGuy Good Product but does not piggyback on to Potterton ep programmers as some sites say it does. Only Potterton EP2 does this so that the Back plate with its wiring needn't be rewired. Great for DIY'ers no need for an electrician. Very quick procedure (less than 5 minutes)
Date published: 2016-07-28
Rated 5 out of 5 by from Honeywell done it again Bank Holiday weekend and a return client needed hot water and heating asap - thankfully Screwfix had the item in stock - job done within the hour. Honeywell programmer is easy to use and set - always use this product if possible.
Date published: 2016-05-02
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3 Questions  1 Answer

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Wifi

Can it be operated via Wi-Fi
1 Jul 2016
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Elfast
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Answer: 
Hello Tacobellsb,

In order for this question to be answered, you would need to call 01344 656 200 and press option 1.

Hope this helps.
5 Jul 2016
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6 Apr 2016
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marlow
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2 Dec 2015
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Bodham, Norfolk
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  • 2016-11-18 T05:39:39.302-06:00
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Specification
Brand Honeywell
Central Heating Control Type Programmers
Compatible Boiler Type All Boilers
Display Type Digital Display
Installation Type 2-Wire Installation
Manufacturer Guarantee 1 Year Guarantee
Manufacturing Standards Building Regulations Compliant, CE, WEEE, RoHS
Model No ST9400C
Pack Size 1
Pieces in Pack/Case 1
Product Depth 35 mm
Product Height 99 mm
Product Type Programmer
Product Width 145 mm
Programme Facility 7 Day Programmable
Suitable System Suitable for Gravity-Fed & Pumped Systems
Switch Type SPDT
Zoning Level Up to Two

Switching/contact rating: SPDT 3(3)A. H x W x D: 99 x 145 x 35mm. Backplate fit: Industry Standard. Suitable for underfloor heating.

Downloads

Instruction Manual