Ideal
Ideal Potentiometer Harness Kit Including Nut and Washer 171877
Ideal potentiometer harness kit 171877 with nut and washer, for Classic, Elan 2, Henrad and Optia boilers; GC 794-192.
At a glance
- Part type: Potentiometer harness kit
- Also known as 1178283
Showing prices
£24.26
£20.22 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 Ideal potentiometer harness kit, part 171877, is a wiring assembly built around a rotary potentiometer and supplied with a mounting nut and washer. Ideal produces it for the Classic, Elan 2, Henrad and Optia boiler ranges. The harness carries the control setting back to the printed circuit board, giving the board the input it needs to regulate the boiler's operating sequence and safety protocols.
Signs this part needs replacing
- The temperature or output control has no effect when the knob is turned
- The boiler fires and modulates erratically, or cycles without holding a stable setpoint
- Fault codes or lockouts point to the control circuit rather than the burner or gas valve
- The control knob feels loose, stiff, or turns without any resistance
- Intermittent running traced to a chafed, brittle or loose harness
Before you order
- Check the GC number on the appliance data badge against the numbers listed for this kit
- Compare the number on the existing component with 171877, 1178283 and 137661
- Inspect the mounting thread and washer seat before fitting the replacement
Mechanical
| Part type | Potentiometer harness kit |
|---|
Compliance
| Manufacturer part number (MPN) | 171877 |
|---|---|
| GC number | 794-192 |
| Barcode / EAN | 5022141718779 |
| Commodity code | 8533 40 10 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 137661, 1178283 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL CLASSIC FF 2 100 | 41-349-71 | 41-349-71 | — | — |
| IDEAL CLASSIC FF 250P | 41-387-07 | 41-387-07 | — | — |
| IDEAL CLASSIC FF 260P | 41-387-08 | 41-387-08 | — | — |
| IDEAL CLASSIC FF 275P | 41-387-09 | 41-387-09 | — | — |
| IDEAL CLASSIC FF LX 230 | 41-387-24 | 41-387-24 | — | — |
| IDEAL CLASSIC FF LX 240 | 41-387-25 | 41-387-25 | — | — |
| IDEAL CLASSIC FF LX 250 | 41-387-26 | 41-387-26 | — | — |
| IDEAL CLASSIC FF LX 250P | 41-387-30 | 41-387-30 | — | — |
| IDEAL CLASSIC FF LX 260 | 41-387-27 | 41-387-27 | — | — |
| IDEAL CLASSIC FF LX 260P | 41-387-31 | 41-387-31 | — | — |
Showing 10 of 212 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
IDEAL appliance manual — CLASSIC FF 2 100 (GC 41-349-71), CLASSIC FF LX 230 (GC 41-387-24), CLASSIC FF LX 240 (GC 41-387-25), CLASSIC FF LX 250 (GC 41-387-26), CLASSIC FF LX 260 (GC 41-387-27), CLASSIC FF LX 270 (GC 41-387-28), CLASSIC FF LX 280 (GC 41-387-29)
manualmanualIDEAL appliance manual — CLASSIC FF 250P (GC 41-387-07), CLASSIC FF 260P (GC 41-387-08), CLASSIC FF 275P (GC 41-387-09), CLASSIC FF LX 250P (GC 41-387-30), CLASSIC FF LX 260P (GC 41-387-31), CLASSIC FF LX 275P (GC 41-387-32)
manualmanualIDEAL appliance manual — CLASSIC FF230 (GC 41-387-02), CLASSIC FF240 (GC 41-387-03), CLASSIC FF250 (GC 41-387-04), CLASSIC FF260 (GC 41-387-05), CLASSIC FF280 (GC 41-387-06), CLASSIC NF LX 230 (GC 41-387-24), CLASSIC NF LX 240 (GC 41-387-25), CLASSIC NF LX 250 (GC 41-387-26), CLASSIC NF LX 260 (GC 41-387-27), CLASSIC NF LX 270 (GC 41-387-28), CLASSIC NF LX 280 (GC 41-387-29), CLASSIC NF230 (GC 41-387-01), CLASSIC NF240 (GC 41-387-02), CLASSIC NF250 (GC 41-387-03), CLASSIC NF260 (GC 41-387-04), CLASSIC NF270 (GC 41-387-05), CLASSIC NF280 (GC 41-387-06)
manualmanualIDEAL appliance manual — CLASSIC FF3100 (GC 41-392-01), CLASSIC FF330 (GC 41-391-54), CLASSIC FF340 (GC 41-391-95), CLASSIC FF350 (GC 41-391-96), CLASSIC FF360 (GC 41-391-97), CLASSIC FF370 (GC 41-391-98), CLASSIC FF380 (GC 41-391-99)
manualmanualIDEAL appliance manual — CLASSIC FF330 SLIMLINE (GC 41-392-02), CLASSIC FF340 SLIMLINE (GC 41-392-03), CLASSIC FF350 SLIMLINE (GC 41-392-04), CLASSIC FF360 SLIMLINE (GC 41-392-05)
manualmanualIDEAL appliance manual — CLASSIC FF340LF (GC 41-392-90), CLASSIC FF350LF (GC 41-392-91), CLASSIC FF360LF (GC 41-392-92)
manualmanualIDEAL appliance manual — CLASSIC FF350 P (GC 41-392-06), CLASSIC FF360 P (GC 41-392-07), CLASSIC FF380 P (GC 41-392-08)
manualmanualIDEAL appliance manual — CLASSIC HE 12 (GC 41-415-59), CLASSIC HE 15 (GC 41-421-45), CLASSIC HE 15P (GC 41-421-97), CLASSIC HE 18 (GC 41-421-46), CLASSIC HE 18P (GC 41-421-98), CLASSIC HE 9 (GC 41-415-58)
manualmanualIDEAL appliance manual — CLASSIC NF 30 (GC 41-429-30), CLASSIC NF 40 (GC 41-429-31), CLASSIC NF 50 (GC 41-429-32), CLASSIC NF 60 (GC 41-429-33), CLASSIC NF 70 (GC 41-429-77), CLASSIC NF 80 (GC 41-429-34)
manualmanualIDEAL appliance manual — CLASSIC NFP 50, CLASSIC NFP 60, CLASSIC NFP 80
manualmanualIDEAL appliance manual — CLASSIC SE 12 FF (GC 41-395-31), CLASSIC SE 12 FF (SILVER) (GC 41-397-64), CLASSIC SE 15 FF (GC 41-395-32), CLASSIC SE 15 FF (SILVER) (GC 41-397-65), CLASSIC SE 18 FF (GC 41-395-33), CLASSIC SE 18 FF (SILVER) (GC 41-397-68), CLASSIC SE 18 FF SLIMLINE (GC 41-395-43), CLASSIC SE 21 FF (GC 41-395-34), CLASSIC SE 21 FF (SILVER) (GC 41-397-69), CLASSIC SE 24 FF (GC 41-395-35), CLASSIC SE 24 FF (SILVER) (GC 41-397-70), CLASSIC SE 30 FF (GC 41-395-36), CLASSIC SE 30 FF (SILVER) (GC 41-397-71), CLASSIC SE 9 FF (GC 41-395-30), CLASSIC SE 9 FF (SILVER) (GC 41-397-63)
manualmanualIDEAL appliance manual — CLASSIC SE 12 FF SLIMLINE (GC 41-395-41), CLASSIC SE 15 FF SLIMLINE (GC 41-395-42), CLASSIC SE 9 FF SLIMLINE (GC 41-395-40)
manualmanualIDEAL appliance manual — CLASSIC SE 15P FF (GC 41-397-72), CLASSIC SE 18P FF (GC 41-397-73), CLASSIC SE 24P FF (GC 41-397-74)
manualmanualIDEAL appliance manual — CLASSIC SLIMLINE FF230 (GC 41-387-74), CLASSIC SLIMLINE FF240 (GC 41-387-75), CLASSIC SLIMLINE FF250 (GC 41-387-76), CLASSIC SLIMLINE FF260 (GC 41-387-77)
manualmanualIDEAL appliance manual — ELAN 2 NF230 (GC 41-429-60), ELAN 2 NF240 (GC 41-429-61), ELAN 2 NF250 (GC 41-429-62), ELAN 2 NF260 (GC 41-429-63), ELAN 2 NF280 (GC 41-429-64)
manualmanualIDEAL appliance manual — HENRAD WH FF LX30 (GC 41-349-94), HENRAD WH FF LX40 (GC 41-349-95), HENRAD WH FF LX50 (GC 41-349-96), HENRAD WH FF LX60 (GC 41-349-97), HENRAD WH FF LX70 (GC 41-349-98), HENRAD WH FF LX80 (GC 41-349-99), HENRAD WH FF100 (GC 41-349-93)
manualmanualIDEAL appliance manual — HENRAD WH FF30 (GC 41-349-87), HENRAD WH FF40 (GC 41-349-88), HENRAD WH FF50 (GC 41-349-89), HENRAD WH FF60 (GC 41-349-90), HENRAD WH FF70 (GC 41-349-91), HENRAD WH FF80 (GC 41-349-92)
manualmanualIDEAL appliance manual — OPTIA FF100 (GC 41-392-01), OPTIA FF30 (GC 41-391-54), OPTIA FF40 (GC 41-391-95), OPTIA FF50 (GC 41-391-96), OPTIA FF60 (GC 41-391-97), OPTIA FF70 (GC 41-391-98), OPTIA FF80 (GC 41-391-99)
manualmanualIDEAL appliance manual — OPTIA HE 12 (GC 41-421-71), OPTIA HE 15 (GC 41-421-72), OPTIA HE 18 (GC 41-421-96), OPTIA HE 9 (GC 41-421-70)
manualNo technical questions yet for this part.
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