Horstmann Controls
Horstmann (Secure) CentaurPlus C17 7-day programmer
Horstmann (Secure) CentaurPlus C17 single-channel 7-day central heating programmer, now discontinued.
At a glance
- Also known as 4210025
AvailabilityCall for price
Availability: no longer made. Call us and we'll check for stock.
Replaced by C1727
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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- Mon–Fri
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- 9am–12pm
- Sun
- Closed
Or request a price online
Tell us what you need and we will come back to you. No payment is taken.
30-day returns
Unused, in original packaging.
What it is
The CentaurPlus C17 is a single-channel 7-day electronic programmer from Horstmann (Secure), used to schedule when a central heating circuit switches on and off. It allows a different schedule for each day of the week, with advance and boost functions for temporary overrides.
Signs this part needs replacing
- Programme fails to hold or resets itself
- Heating fails to switch on or off at the scheduled times
- Display or dial no longer responds to programming
- Battery back-up no longer holds the clock after a power cut
Before you order
- Match the part number printed on your existing programmer
- Isolate electrical power before replacing
- Note this model is discontinued; check whether the C1727 replacement suits your wall plate before ordering
Compliance
| Barcode / EAN | 5015914194054 |
|---|---|
| Alternative numbers | 4210025 |
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.