
Quick overview
- Genuine Raypak part Factory part number 003346F, the OEM temperature control.
- Mechanical control A mechanical thermostat, not a digital board, so it sets temperature by dial rather than by keypad.
- Millivolt heaters and electric spas Listed for the ELS 552-2 and 1102-2 models and the 53A, 53B, 055A, 055B and 105A millivolt units.
- Fixes runaway or dead heat A failed thermostat either never calls for heat or never stops calling for it.
- Direct swap Replaces the original control in the same position in the heater.
- Check the model first Raypak used several thermostats across its range, so confirm your model against the fitment list.
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Product details
The Raypak 003346F is the genuine OEM mechanical thermostat temperature control. It is listed for the ELS 552-2 and 1102-2 models and for the 53A, 53B, 055A, 055B and 105A millivolt pool heater and electric spa units.
What the thermostat does
The thermostat is the part that decides whether the heater runs. It senses water temperature and closes the circuit that lets the heater fire until the setting is reached. When it fails, one of two things happens: the heater never lights even though water is flowing and gas is available, or it lights and keeps heating past the set point.
Before you order
Raypak used more than one temperature control across its heater range, and the fitment list above is what the source data carries for this part. Check the model and serial plate on your heater against that list. If the heater is a digital model rather than a millivolt one, it uses a different control entirely.
| Brand | Raypak |
|---|---|
| Manufacturer part number | 003346F |
| UPC | 840891001614 |
| Type | Mechanical thermostat temperature control |
| Part type | Pool heater part |
| Fits | Model ELS 552-2, 1102-2, 53A, 53B, 055A, 055B, 105A millivolt pool heater and electric spa |
| Shipping weight | 0.35 lb |
| Ships | Parcel |
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