Baxi
Baxi Hydraulic Block Left Combi 720544101
Left combi hydraulic block 720544101 for Baxi and Broag Remeha combi boilers, directing hot water between the heating and hot water circuits.
At a glance
- Part type: Diverter valves and hydraulics
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£288.00
£240.00 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 left combi hydraulic block, part number 720544101, is a hydraulic component used only in combi boilers. It sits in the water circuit and controls the path taken by heated water, sending it either to the central heating system or to the domestic hot water outlet. It is fitted across the Baxi and Broag Remeha Avanta combi ranges.
Signs this part needs replacing
- No hot water at the tap while the heating continues to run normally
- Radiators warming up when only domestic hot water is drawn
- Domestic hot water running lukewarm or fluctuating in temperature
- Water weeping from the block body or from its connections
- The boiler failing to switch cleanly between heating and hot water modes
Before you order
- Check the GC number and model on the boiler data badge against the compatibility list before ordering
- Confirm the previous number S62772 if the appliance is an earlier build
- A gasket or seal kit may be needed when the block is refitted
- 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) | 720544101 |
|---|---|
| GC number | H39-176 |
| Commodity code | 8403 90 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | S62772 |
| Previous numbers | S62772 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI AVANTA PLUS COMBI 24C | 47-075-77 | 47-075-77 | — | — |
| BAXI AVANTA PLUS COMBI 28C | 47-075-78 | 47-075-78 | — | — |
| BAXI AVANTA PLUS COMBI 35C | 47-075-79 | 47-075-79 | — | — |
| BAXI AVANTA PLUS COMBI 39C | 47-075-80 | 47-075-80 | — | — |
| BROAG REMEHA AVANTA EXCLUSIVE 28C | 47-288-03 | 47-288-03 | — | — |
| BROAG REMEHA AVANTA EXCLUSIVE 35C | 47-288-04 | 47-288-04 | — | — |
| BROAG REMEHA AVANTA EXCLUSIVE 39C | 47-288-05 | 47-288-05 | — | — |
| BROAG REMEHA AVANTA PLUS COMBI 24C | 47-288-01 | 47-288-01 | — | — |
| BROAG REMEHA AVANTA PLUS COMBI 28C | 47-673-02 | 47-673-02 | — | — |
| BROAG REMEHA AVANTA PLUS COMBI 35C | 47-673-03 | 47-673-03 | — | — |
Showing 10 of 15 compatible appliances.
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.
BAXI appliance manual — AVANTA PLUS COMBI 24C (GC 47-075-77), AVANTA PLUS COMBI 28C (GC 47-075-78), AVANTA PLUS COMBI 35C (GC 47-075-79), AVANTA PLUS COMBI 39C (GC 47-075-80)
manualmanualBROAG REMEHA appliance manual — AVANTA EXCLUSIVE 28C (GC 47-288-03), AVANTA EXCLUSIVE 35C (GC 47-288-04), AVANTA EXCLUSIVE 39C (GC 47-288-05)
manualmanualBROAG REMEHA appliance manual — AVANTA PLUS COMBI 24C (GC 47-288-01), AVANTA PLUS COMBI 28C (GC 47-673-02), AVANTA PLUS COMBI 35C (GC 47-673-03)
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