Harvia Saunas

Help! My control panel is showing the error message:

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• ER1
  Forte: The thermocouple circuit is broken.
  Moderna, Fuga, Delta, Kivi, Cilindro: The temperature sensor's measuring circuit is damaged. Contact us.

• ER2
  Moderna, Fuga, Delta, Kivi, Cilindro: The temperature sensor measuring circuit has a short circuit. Contact us.

• ER3
  Forte: The overheat protector's measuring circuit has failed.

• ER4
  Forte: An interruption in the connection between the lower and upper cards.

• ER5
  Forte: There is an excessive amount of heat surrounding the control panel.

This only applies to heaters with a mechanical timer switch. Verify that the heater's fuses/breakers are working on the electrical panel. A heater's electrical panel may have one to three fuses/breakers, depending on its model and electrical system.

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Ensure that the heater's connection cable is connected.

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Inspect the overheat protector to ensure it has not been triggered. If so, the heater will not heat up even though the timer works.

• Stones are quickly cooled by water thrown on the heater.

• Ensure that the heater's fuses and breakers are working properly. It is important to note that there are typically one to three fuses/breakers on the electrical panel, depending on the heater model and electrical system.

• When the heater is on, verify that all the heating elements are glowing.

• Increase the temperature.

• Check the heater's power to make sure it's adequate.

• Make sure the heater stones are in good condition. Stacking the stones too tightly, compacting them over time, or using the wrong stones can block air circulation, reducing the heater's heating power.

• You should ensure that the ventilation of the sauna is set up properly.

1. Remember to close the sauna door.

2. Make sure all heating elements are visible by removing stones from the heater.

3. Activate the heater. A glow should come from the heating elements after a few moments. If a heating element does not glow, it must be replaced.

4. Keep an eye on the heating elements when they turn off. It occurs when the sauna temperature reaches the desired temperature set by the thermostat. It usually takes 35–45 minutes for the desired temperature to be reached after turning on the heater. When the thermostat takes a long time to reach the desired temperature, the temperature sensor might be placed incorrectly, the heater may not be powerful enough, or the thermostat might be defective.

To prevent dangerous live components from coming into contact with each other, all electrical appliances with protective housings attached by screws must be installed and serviced by a qualified, authorised electrical engineer or any such qualified individual, per the regulations in force.

Heater stones should be made of heavy materials, dark colours, and large sizes to store the greatest amount of heat energy. Typically, heater dealers sell stones specifically designed for use as heater stones that come from reputable suppliers, so their composition and suitability are guaranteed. Peridotite, olivine, and olivine diabase are all ideal stone materials for heaters. A natural surface rock collected outdoors cannot be used as a heater.

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You should not use ceramic "stones" and soft soapstones. They are incapable of storing enough heat when heating. As a result, the heater may overheat, which can cause the heating elements to break.

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According to the installation and user instructions of the heater, the heater stones must be stacked appropriately. Heater stones can be found in two different sizes.

Generally, the replacement frequency depends on how often the heater is used. Stones should be changed once a year if they are used twice a week on average. As the stones crumble in use and compact in the stone compartment, they must be restacked periodically to allow air circulation. A proper sauna experience depends on good air circulation. Additionally, the heating elements will also last longer with good air circulation.

A broken heating element should be replaced immediately, as the ones still intact have to glow longer, and one of the remaining heating elements may also break after a while. Only an authorised electrical engineer may replace a heating element.