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Honeywell ST9400C 7-Day Electronic Programmer with 2-Channel

Name: Honeywell ST9400C 7-Day Electronic Programmer with 2-Channel
Brand: Honeywell
Price: 78.1 GBP
Availability: InStock
Rating: 4.77 (318 reviews)

£78.10

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Condition:

New

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Located in: Brackley, United Kingdom

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eBay item number:156658168623

Last updated on 20 Feb, 2025 07:45:26 GMTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...

Control Style: Push Button

Programmability: Programmable

EAN: 0772040469917

Brand: Honeywell

Thermostat Programmable Days: 7- Day

Power Source: 2 Chanel

MPN: ST9400C, ST9400C1000

Colour: White

About this product

Product Identifiers

Brand

Honeywell

MPN

ST9400C, ST9400C1000

EAN

0772040469917, 2075521328412

GTIN

2075521328412

eBay Product ID (ePID)

7029961536

Product Key Features

Power Source

2 Chanel

Colour

White

Thermostat Programmable Days

7- Day

Additional Product Features

Power (W)

Less than 1000W

Control

Electronic

Featured Refinements

Honeywell St9400c

Type

Thermostats

Item description from the seller

About this seller

Joined Jun 2005

Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.

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Seller Feedback (4)

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Product ratings and reviews

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4.8

318 product ratings

272 users rated this 5 out of 5 stars
32 users rated this 4 out of 5 stars
7 users rated this 3 out of 5 stars
1 users rated this 2 out of 5 stars
6 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 260 reviews

by millmaag
17 Jan, 2018Most favourable review
Great features, easy to install
I bought this to replace a Honeywell ST7100, that had failed after 20+ years of reliable service. I had to wire in a new backplate - but the new unit only needs four connections - mains live, mains neutral, a wire out to hot water and a wire out to central heating. No earth needed as it is double insulated. Not much more complicated than wiring a mains plug. The backplate is industry standard so, if this timer ever fails, I should be able to take it off the backplate and plug in any available timer, just like swapping a broken light bulb. Given that there are reports of the unit failing, I did consider getting a spare one - but they use a non replaceable back up battery that gradually runs down in storage, so decided to wait and see what happens and to get a brand new replacement if and ... I bought this to replace a Honeywell ST7100, that had failed after 20+ years of reliable service. I had to wire in a new backplate - but the new unit only needs four connections - mains live, mains neutral, a wire out to hot water and a wire out to central heating. No earth needed as it is double insulated. Not much more complicated than wiring a mains plug. The backplate is industry standard so, if this timer ever fails, I should be able to take it off the backplate and plug in any available timer, just like swapping a broken light bulb. Given that there are reports of the unit failing, I did consider getting a spare one - but they use a non replaceable back up battery that gradually runs down in storage, so decided to wait and see what happens and to get a brand new replacement if and when needed.
Verified purchase: YesCondition: NewSold by: discount.heating
by blackdog7677
22 Oct, 2020Most critical review
Good product, poor quality control
I bought this 'cos I thought Honeywell that will be quality. Arrived packaging intact. However the units case was not assembled correctly together; one of the case tabs was on the outside. Fortunately I was able to prise it open enough without breaking the case to get the tab inside the case and so correctly located. Easy install, easy configure, easy use.
Verified purchase: YesCondition: NewSold by: borderspares
by bob.bell1000
13 Dec, 2016
Excellent Controller and ideal retrofit for 6400 series.
I bought this to replace an existing ST 6400 controiller that had a failed back up battery. Replacement took only a matter of minutes and required no skills, special tools or rewiring. This is because Honeywell have made the 9400 fit the older 6400 backplate. You leave the backplate in place. You undo two captive screws at the base of the old unit. You hinge up the old unit (it is held on two tabs at the top) and lift it off. You fit the new unit over the tabs, hinge it down ands push into place and then tighten up the two screws. Connecting pins on the rear make contact with the connectors on the backplate. That's all. It now works. All that is required is to set the time and the programmes. It is similar to the old 6400 but has a much clearer display and this is backlit (you can set ... I bought this to replace an existing ST 6400 controiller that had a failed back up battery. Replacement took only a matter of minutes and required no skills, special tools or rewiring. This is because Honeywell have made the 9400 fit the older 6400 backplate. You leave the backplate in place. You undo two captive screws at the base of the old unit. You hinge up the old unit (it is held on two tabs at the top) and lift it off. You fit the new unit over the tabs, hinge it down ands push into place and then tighten up the two screws. Connecting pins on the rear make contact with the connectors on the backplate. That's all. It now works. All that is required is to set the time and the programmes. It is similar to the old 6400 but has a much clearer display and this is backlit (you can set it to be backlit or not). This is an excellent feature. It allows me to see the controller screen without needin a torch. The programmer can be set to separately control the central heating and hot water circuits. You can set multiple timed on/off periods for each day. Mine is set to 3 on/offs per day, but you can set the unit to operate differently if yoiu wish (in the master set up). You can set the unit to be on a 1 week programe, where every day is the sam, or a 5/2 programme where weekdays and weekends are different or 7 individual days where each day can be different (a "copy" function makes this easy.. (This weekly, 5/2/ or daily option is in the master set up). Buttons to allow an extra hour or override for the Heating and Hot Water are on the front. They are on opposite sides of the display, so you cannot accidentaly press the wrong one and they light up when activated. The old controller had a slider for OFF/AUTO/ONCE/CONTINUOUS for heating and hot water. You had to open the cover to get to it. This one has a pair of push buttons and the display shows which one you have selected. The original 6400C was a very good controller. This one is an imrpovement with the same functionality but extra features that are useful. For me, the bigger display and back illumination are the two best imnprovements. It came with a new backplate. If the electricity goes off (and it has) in a power cut, it has a back up battery and does not lose the time or the programme, so no work is needed. HINT: if you are replacing an old controller, make sure that the two captive screws on the bottom of the existing back plate are fully undone. They are captive and cannot fall out. If you do not unscrew them enough they might stop the new controller slotting into place. If this happens then they need to be slackened off a bit more. Great product from Honeywell that has stood the test of time and is now improved. You can download all the information beforte you buy from the Honeywell website, but the information in the box is excellent. Oh!, and it looks nice too!
Verified purchase: YesCondition: NewSold by: heatright15
by mdea4561
29 Nov, 2017
st9400c
I purchased the st9400c to replace a now defuct st6300a . had to remove and replace the backplate as the backplate of the st6300 is not compatible with the st9400 programmer, which came with its own backplate and was quite simple to do.with these programmers you always get a selection of pics of wiring diagrams and you just have to make sure the wiring arrangement and type of system you have is compatible eg 's'plan, 'y' plan etc. I have also replaced a st6400 with the same programmer.I purchased the st9400c to replace a now defuct st6300a . had to remove and replace the backplate as the backplate of the st6300 is not compatible with the st9400 programmer, which came with its own backplate and was quite simple to do.with these programmers you always get a selection of pics of wiring diagrams and you just have to make sure the wiring arrangement and type of system you have is compatible eg 's'plan, 'y' plan etc. I have also replaced a st6400 with the same programmer.
Verified purchase: YesCondition: NewSold by: ukbargainshop1
by jagxtype2013
04 Apr, 2020
Does what is required of it.
It replaced a somewhat old Honeywell Programmer, which did not allow the flexibility that this type of Programmer does. Whilst there are other makes of similar capabilities, This particular make is a well established brand with high quality integrity.
Verified purchase: YesCondition: New

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Honeywell ST9400C 7-Day Electronic Programmer with 2-Channel

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Item specifics

About this product

Product Identifiers

Product Key Features

Additional Product Features

Item description from the seller

7651markc

100% positive Feedback•7 items sold

Seller Feedback (4)

Product ratings and reviews

Most relevant reviews

Great features, easy to install

Good product, poor quality control

Excellent Controller and ideal retrofit for 6400 series.

st9400c

Does what is required of it.

More to explore:

7651markc

100% positive Feedback•7 items sold

Seller Feedback (4)

Picture 1 of 2

Honeywell ST9400C 7-Day Electronic Programmer with 2-Channel

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Additional Product Features

Item description from the seller

7651markc

100% positive Feedback•7 items sold

Seller Feedback (4)

Product ratings and reviews

Most relevant reviews

Great features, easy to install

Good product, poor quality control

Excellent Controller and ideal retrofit for 6400 series.

st9400c

Does what is required of it.

More to explore:

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