
Quick overview
- Hayward CZXHLC3105 The high limit switch for the C-Spa XI Series.
- Safety cutout Opens the heating circuit if water temperature climbs past the safe limit.
- C-Spa XI Series Listed for the 1.5, 5.5 and 11 W C-Spa XI Series heaters as written on the source listing.
- Direct replacement Swaps for the original hi-limit in the heater.
- Fix the cause too A hi-limit that keeps tripping is usually reporting low flow, not failing on its own.
- Do not bypass it The high limit is the last line of protection on an electric heater. Replace it, never jumper it.
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Product details
The Hayward CZXHLC3105 is the high limit switch for C-Spa XI Series heaters. It is the over temperature cutout that protects the heater and the water it is heating.
How it works
The switch watches the temperature at the heater and opens the heating circuit if it climbs beyond the safe limit. That is what stops an electric heater from continuing to fire into water that is not moving.
Trace the cause before you replace
A high limit rarely trips for no reason. In most cases it is telling you the heater is starved of flow: a loaded filter, a partly closed valve, an air lock, a blocked impeller or a pump that is no longer moving what it should. Sort out the flow first. If the switch itself has failed open or will no longer reset, this is the replacement.
A note on the rating
The source listing gives the heater sizes as 1.5/5.5/11 W. Confirm the model on your heater against that listing before ordering.
| Brand | Hayward |
|---|---|
| Manufacturer part number | CZXHLC3105 |
| UPC | 610377011693 |
| Type | High limit switch |
| Fits | Hayward C-Spa XI Series heaters |
| Ratings, as listed | 1.5/5.5/11 W |
| Shipping weight | 0.15 lb |
| Ships | Parcel |
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