Horstmann Controls
Horstmann Channelplus H17XL Series 2 Single Channel Programmer
A single-channel 7-day electronic heating or hot water programmer with boost, holiday mode and a backlit display; now obsolete.
At a glance
- Also known as 4210040
AvailabilityCall for price
Availability: no longer made. Call us and we'll check for stock.
No longer made: call us
The manufacturer has discontinued this part. Our team will check for remaining stock or a suitable replacement.
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30-day returns
Unused, in original packaging.
What it is
The Horstmann Channelplus H17XL Series 2 is a single-channel timeswitch that allows up to three on/off settings per day, with a separate programme for each day of the week. It has a backlit, menu-driven display and is designed to give time control over either central heating or hot water; its 3A contacts also suit security lighting circuits.
Signs this part needs replacing
- Display blank, dim or unresponsive
- Buttons unresponsive or programme cannot be changed
- Programme or clock resets after a power cut (battery backup failing)
- Heating or hot water switching on or off at the wrong times
Before you order
- Confirm the 9-pin wall-mounting plate matches your existing unit
- Note this model is obsolete; the manufacturer's direct replacement is the H3747
- Isolate the electrical supply before removing or fitting
- This is a mains-wired control, so fitting should be carried out by a competent person
Compliance
| Barcode / EAN | 5015914351013 |
|---|---|
| Alternative numbers | 4210040 |
No fitment data held for this part.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.