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Honeywell ST9400C Programmer

Product Code: 88608

Rated 3.4 out of 5 by 23 reviewers.

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
  • View more information

Product contents:
1 off ST9400C 2 channel heating programmer

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.

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Honeywell ST9400C Programmer Instruction Manual

£92.99 (inc. 20% VAT)

3.5455 5 22

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Page 1 of 4
Rated 1 out of 5 Unreleable Programmer Don't buy one of these. They may seem very good while working but they are very unreliable. They fail after the guarantee expires. Don't take my word for it please check the internet. There are a lot of other disappointed customers out there. The happy ones probably wrote their reviews shortly after purchase and haven't owned the programmer long enough for the problems to manifest themselves. Honeywell customer service is also not very good. Long waits on the telephone & then not helpful. 29-Oct-2014
Rated 5 out of 5 by Honeywell Programmer I couldn't fault Screwfix's performance in delivering the above -- a first class service, without doubt 24-Oct-2014
Rated 5 out of 5 by CH/HW Controller Needed to replace my 25yr old ST7100. Changed back-plate followed wiring instructions, switched back on - worked. Screwfix not cheapest but available locally. Can't tell about reliability but would like to think this controller will also last 25yrs :) 14-Sep-2014
Rated 1 out of 5 by Didn't last I bought this thinking I was buying quality and reliability - none of it. Setting the programmes is amazing slow and clunky but I thought I could live with that. The unit has now failed after a little more than 2 years (obviously now out of warranty) so I have to buy a replacement - don't worry it won't be a Honeywell! 05-Nov-2013
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Download more info (pdf)

Brand Honeywell
Colour White
Manufacturer Guarantee 1 years
Manufacturing Standards Building Regulations Compliant, CE, WEEE, RoHS
Model No ST9400C
Pack Size 1
Product Depth 35 mm
Product Height 99 mm
Product Length 145 mm
Product Width 145 mm
Total Product Weight 0.268 kg