Worcester Bosch
Worcester Bosch Temperature Limiter 8738905217
Temperature limiter for Worcester Bosch Greenstar 1000 Series Gr1000W 24 C and 30 C gas boilers.
At a glance
- Appliance family: Greenstar 1000 Series
- Also known as 1038578
£29.35
£24.46 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Worcester Bosch temperature limiter, part number 8738905217, is a safety component used on Greenstar 1000 Series gas boilers. It monitors appliance temperature and interrupts the burner when the set limit is exceeded, protecting the boiler from overheating.
Signs this part needs replacing
- The boiler locks out or shuts down during a heating or hot water demand
- Overheat trips recur after resetting the appliance
- The burner fails to fire because the limiter remains open
- No heating or hot water while the overheat cut-out holds the boiler off
Before you order
- Confirm the boiler model matches one of the Greenstar 1000 Series Gr1000W 24 C or 30 C variants listed
- Check the existing limiter part number against 8738905217
- Refer to the boiler installation and service documentation before replacement
Compliance
| Alternative numbers | 1038578 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 1000 SERIES GR1000W 24 C NG | 47-800-38 | 47-800-38 | — | — |
| WORCESTER GREENSTAR 1000 SERIES GR1000W 30 C NG | 47-800-39 | 47-800-39 | — | — |
| WORCESTER GREENSTAR GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — |
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?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.