Ideal
Ideal Wiring Harness Low Voltage 177338
Ideal 177338 low voltage wiring harness for Logic Code Combi ES26, ES33 and ES38 boilers, carrying control signals within the appliance.
At a glance
- Part type: Low voltage wiring harness
- Also known as 1777710
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£36.17
£30.14 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 177338 is a low voltage wiring harness manufactured by Ideal for use in Logic Code Combi appliances. It carries low voltage control signals between the boiler's printed circuit board and the components it manages, so the appliance can run through its sequence reliably.
Because the harness sits inside the casing and handles signal-level current rather than mains power, it is a distinct part from the main power leads. A damaged or poorly seated harness interrupts those signals and the boiler will not operate as intended.
Signs this part needs replacing
- Boiler locks out or fails to complete its ignition sequence with no obvious fault at the gas or water side
- Intermittent faults that appear and clear without any component being changed
- Error codes relating to communication or sensor signals recurring after a reset
- Visible damage to the harness: chafed insulation, a cracked plug body, or a connector that will not clip home
- Corrosion or heat discolouration on the plug terminals where the harness meets the board
Before you order
- Check the GC number on the appliance data badge against the compatibility list; the ES26, ES33 and ES38 share this harness but carry different GC numbers
- Confirm the part number on the existing harness or in the manufacturer's literature before ordering, and note the alternative number 1777710
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Cables, Leads & Wiring Harnesses |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 177338 |
|---|---|
| Barcode / EAN | 5022141773389 |
| Commodity code | 8544 42 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1777710 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL IDEAL : LOGIC CODE COMBI ES26 | — | — | — | |
| IDEAL IDEAL : LOGIC CODE COMBI ES33 | — | — | — | |
| IDEAL IDEAL : LOGIC CODE COMBI ES38 | — | — | — | |
| IDEAL LOGIC CODE COMBI ES26 | 47-349-04 | 47-349-04 | — | — |
| IDEAL LOGIC CODE COMBI ES33 | 47-349-05 | 47-349-05 | — | — |
| IDEAL LOGIC CODE COMBI ES38 | 47-349-06 | 47-349-06 | — | — |
| IDEAL COMMERCIAL IDEAL COMMERCIAL PARTS | — | — | — |
Documents & drawings
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