
Description
Description
The Helo Timer OYKF 1A is the replacement timer for the Helo Cup electric sauna heater, with the same 9 + 3 hour operating range as the original factory part. It restores the heater’s timing function when the original timer fails. Only the timer is included; the heater itself and the matching Cup thermostat are sold separately. Check that your heater is a Helo Cup and confirm part number SP5509053 before ordering.
Features
Technical Specification
| Product type | Heater timer |
| Model | OYKF 1A |
| Timing range | 9 + 3 hours |
| Compatible heater | Helo Cup electric sauna heater |
| Manufacturer part number | SP5509053 |
| Manufacturer | Helo, Finland |
Installation
This part must be fitted by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Wiring and positioning must follow the heater or control unit manufacturer’s instructions and local wiring regulations.
Brand
Helo was founded in 1919 and was the first manufacturer of electric sauna heaters. The company builds its sauna products in Hanko, Finland, and is part of the Sauna360 group.
Ordering note
Check the heater model, heater power and control unit generation against this part number before ordering; Helo electronic spares are model specific. Electrical installation must be carried out by a certified electrician.
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 Helo Timer OYKF 1A is the replacement timer for the Helo Cup electric sauna heater, with the same 9 + 3 hour operating range as the original factory part. It restores the heater’s timing function when the original timer fails. Only the timer is included; the heater itself and the matching Cup thermostat are sold separately. Check that your heater is a Helo Cup and confirm part number SP5509053 before ordering.
Features
| Product type | Heater timer |
| Model | OYKF 1A |
| Timing range | 9 + 3 hours |
| Compatible heater | Helo Cup electric sauna heater |
| Manufacturer part number | SP5509053 |
| Manufacturer | Helo, Finland |
Installation
This part must be fitted by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Wiring and positioning must follow the heater or control unit manufacturer’s instructions and local wiring regulations.
Brand
Helo was founded in 1919 and was the first manufacturer of electric sauna heaters. The company builds its sauna products in Hanko, Finland, and is part of the Sauna360 group.
Ordering note
Check the heater model, heater power and control unit generation against this part number before ordering; Helo electronic spares are model specific. Electrical installation must be carried out by a certified electrician.
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.









