Worcester Bosch
Worcester Bosch Digistat Transmitter Greenstar Mk2 87161144610
Worcester Bosch Digistat transmitter (87161144610) for Greenstar Mk2 and CDI appliances, sending thermostat signals back to the boiler.
At a glance
- Part type: Clocks, programmers and timers
- Also known as 1020395
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£271.52
£226.27 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Worcester Bosch Digistat transmitter is the radio-frequency sending unit that relays room temperature demand from the Digistat thermostat to the boiler's receiver. It forms part of the Worcester Bosch Greenstar Mk2 control family and is listed under clocks, programmers and timers. The unit carries Worcester part number 87161144610 and GC number H60-079.
Signs this part needs replacing
- The boiler stops responding to the room thermostat, with no demand reaching the receiver.
- Heating runs continuously or fails to fire when the thermostat calls for heat.
- The thermostat and boiler lose their paired link, requiring repeated re-binding attempts.
- Room temperature readings drift or the thermostat display behaves erratically.
- Intermittent operation where the boiler fires and drops out without a clear pattern.
Before you order
- Check the GC number and appliance serial plate to confirm the transmitter matches your boiler variant.
- Compare the part number against any number printed on the existing transmitter, including the earlier 77161920040 and 77161920490 references.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Clocks, Programmers & Timers |
|---|
Compliance
| Manufacturer part number (MPN) | 87161144610 |
|---|---|
| GC number | H60-079 |
| Barcode / EAN | 4010009207870 |
| Commodity code | 9032 10 00 00 |
| GPC classification | Heating System Controls |
| Alternative numbers | 7-716-192-049-0, 77161920040, 1020395 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER 24 CDI BF NG | 47-311-29 | 47-311-29 | — | — |
| WORCESTER 24 CDI OF LPG | 47-311-33 | 47-311-33 | — | — |
| WORCESTER 24 CDI OF NG | 47-311-32 | 47-311-32 | — | — |
| WORCESTER 24 CDI RSF LPG | 47-311-31 | 47-311-31 | — | — |
| WORCESTER 24 CDI RSF NG | 47-311-30 | 47-311-30 | — | — |
| WORCESTER 26 CDI RSF NG | 47-311-41 | 47-311-41 | — | — |
| WORCESTER 26 CDI XTRA RSF LPG | 47-311-42 | 47-311-42 | — | — |
| WORCESTER 26 CDI XTRA RSF NG | 47-311-41 | 47-311-41 | — | — |
| WORCESTER 28 CDI RSF LPG | 47-311-35 | 47-311-35 | — | — |
| WORCESTER 28 CDI RSF NG | 47-311-34 | 47-311-34 | — | — |
Showing 10 of 47 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
WORCESTER appliance manual — 24 CDI BF NG (GC 47-311-29)
manualmanualWORCESTER appliance manual — 24 CDI OF LPG (GC 47-311-33), 24 CDI OF NG (GC 47-311-32)
manualmanualWORCESTER appliance manual — 24 CDI RSF LPG (GC 47-311-31), 24 CDI RSF NG (GC 47-311-30)
manualmanualWORCESTER appliance manual — 26 CDI RSF NG (GC 47-311-41), 26 CDI XTRA RSF LPG (GC 47-311-42), 26 CDI XTRA RSF NG (GC 47-311-41)
manualmanualWORCESTER appliance manual — 28 CDI RSF LPG (GC 47-311-35), 28 CDI RSF NG (GC 47-311-34)
manualmanualWORCESTER appliance manual — 35 CDI II RSF LPG (GC 47-311-59), 35 CDI II RSF NG (GC 47-311-58)
manualmanualWORCESTER appliance manual — 35 CDI RSF LPG (GC 47-311-40), 35 CDI RSF NG (GC 47-311-39)
manualmanualWORCESTER appliance manual — GREENSTAR 12i SYSTEM LPG (GC 41-311-69), GREENSTAR 12i SYSTEM NG (GC 41-311-67), GREENSTAR 15I SYSTEM LPG (GC 41-406-26), GREENSTAR 15I SYSTEM NG (GC 41-311-84), GREENSTAR 18I SYSTEM LPG (GC 41-311-87), GREENSTAR 18I SYSTEM NG (GC 41-311-86), GREENSTAR 24i SYSTEM LPG (GC 41-311-70), GREENSTAR 24i SYSTEM NG (GC 41-311-68)
manualmanualWORCESTER appliance manual — GREENSTAR 24I JUNIOR MK5 LPG (GC 47-406-55), GREENSTAR 24I JUNIOR MK5 NG (GC 47-406-54), GREENSTAR 24I JUNIOR NG (GC 47-311-86), GREENSTAR 24i JUNIOR LPG (GC 47-311-90), GREENSTAR 28I JUNIOR MK5 LPG (GC 47-406-57), GREENSTAR 28I JUNIOR MK5 NG (GC 47-406-56), GREENSTAR 28i JUNIOR LPG (GC 47-311-91), GREENSTAR 28i JUNIOR NG (GC 47-311-87)
manualNo technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.