
Description
Description
The OLEA 103 is a genuine Helo replacement circuit board, supplied as an original spare part for Helo electric sauna heater control systems. Fitting a genuine board restores the control electronics to factory specification rather than adapting a generic component. Replacement should be carried out by a certified electrician, and the part reference should be checked against your heater’s documentation before ordering.
Features
Technical Specification
| Part | OLEA 103 circuit board |
| Part number | SP5916324 |
| Brand | Helo |
Installation
Replacement must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Local wiring regulations must be followed.
Brand
Founded in 1919, Helo was the first manufacturer of electric sauna heaters, and its heaters and spare parts are made in Hanko, Finland. The company is part of the Sauna360 group.
Ordering note
OLEA circuit boards are model-specific. Check your heater or control unit’s service documentation, or contact us with the model and serial number, to confirm that the OLEA 103 is the correct board before ordering.
Downloads
Delivery & Returns
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
Description
The OLEA 103 is a genuine Helo replacement circuit board, supplied as an original spare part for Helo electric sauna heater control systems. Fitting a genuine board restores the control electronics to factory specification rather than adapting a generic component. Replacement should be carried out by a certified electrician, and the part reference should be checked against your heater’s documentation before ordering.
Features
| Part | OLEA 103 circuit board |
| Part number | SP5916324 |
| Brand | Helo |
Installation
Replacement must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Local wiring regulations must be followed.
Brand
Founded in 1919, Helo was the first manufacturer of electric sauna heaters, and its heaters and spare parts are made in Hanko, Finland. The company is part of the Sauna360 group.
Ordering note
OLEA circuit boards are model-specific. Check your heater or control unit’s service documentation, or contact us with the model and serial number, to confirm that the OLEA 103 is the correct board before ordering.
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.









