
Quick overview
- Hayward HAXWHA0001 The factory main wire harness, not a generic loom.
- For millivolt heaters Built for the millivolt control system rather than the electronic ignition models.
- Main harness This is the primary harness that ties the heater controls together.
- Pre-terminated Supplied as a made up harness so the connectors land where the originals did.
- A common failure point Heat and moisture inside the cabinet eventually harden and crack harness insulation.
- Genuine Hayward Ordered by Hayward part number, so there is no guessing at pin count or lead length.
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Product details
Hayward HAXWHA0001 is the main wire harness for Hayward millivolt pool heaters. It is the genuine Hayward part, supplied as a made up harness so every connector lands where the original one did.
Check which system you have
Millivolt heaters run their controls on the small voltage a thermocouple or pilot generator produces, which is a different arrangement from the electronic ignition models. This harness is for the millivolt heaters, so confirm your heater before ordering.
Working safely
A cabinet that has spent years cycling between hot and damp is hard on wiring, and cracked insulation or a melted connector is a real fault, not a cosmetic one. Shut the gas off and kill power at the breaker before you open anything up.
| Brand | Hayward |
|---|---|
| Manufacturer part number | HAXWHA0001 |
| UPC | 610377531801 |
| Type | Main wire harness |
| Application | Hayward millivolt heaters |
| Shipping weight | 0.16 lb |
| Ships | Parcel |
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