Ideal
Ideal Hydroblock Kit ErP ES26 Complete 178066
Complete Ideal hydroblock kit, part 178066, for Logic Code Combi ES26 models. ErP code ES26, GC 47-349-04.
At a glance
- Part type: Diverter valves and hydraulics
- Also known as 1783014
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£456.71
£380.59 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 Ideal 178066 is a complete hydroblock kit for the Logic Code Combi ES26 range, listed under the ErP code ES26. The hydroblock forms the hydraulic core of the combi, housing the diverter valve and the waterways that route water between the heating circuit and the domestic hot water plate heat exchanger. Supplying it as a complete kit means the whole hydraulic block is renewed in one operation rather than rebuilding the internals piece by piece.
Signs this part needs replacing
- Hot water runs cold or fluctuates while the central heating still works normally
- Radiators warm up when only a hot water tap is running, pointing to a diverter that is passing
- Water weeping from the hydroblock body, its joints or the surrounding seals
- System pressure drops repeatedly with no obvious leak elsewhere on the installation
- Scale, corrosion or a stiff, sticking diverter spindle found during a service
Before you order
- Confirm the appliance model and the GC number 47-349-04 before ordering.
- Cross-reference the alternative part number 1783014 when checking older listings or paperwork.
- Check whether new seals or gaskets are needed for the connections being disturbed during the swap.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Diverter valves and hydraulics |
|---|
Compliance
| Manufacturer part number (MPN) | 178066 |
|---|---|
| GC number | 47-349-04 |
| Commodity code | 8403 90 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1783014 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL IDEAL : LOGIC CODE COMBI ES26 | — | — | — | |
| IDEAL LOGIC CODE COMBI ES26 | 47-349-04 | 47-349-04 | — | — |
| IDEAL COMMERCIAL IDEAL COMMERCIAL PARTS | — | — | — |
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 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.