Question 1

Where can I find a replacement sensor for the ZIBRO LASER FF 55 heater?

Accepted Answer

To find a compatible replacement sensor for your ZIBRO LASER FF 55 heater, you can follow these leads:

Authorized ZIBRO dealers: Contact the official dealers of the brand, as they often have original spare parts suitable for your model.
Specialized heating or DIY stores: Some stores offer spare parts for heating appliances, including sensors. Check compatibility before purchasing.
Online sales sites: Many websites specializing in spare parts for household appliances and heating offer compatible sensors. Make sure that the reference matches the LASER FF 55 model.
ZIBRO customer service: Contacting ZIBRO's customer service directly can provide you with precise information about the availability and sales points of original sensors.

Always ensure to choose a sensor suitable for your model to guarantee optimal and safe operation of your heater.

Question 2

How to detect and manage a damaged sensor on a ZIBRO LASER FF 55 heater?

Accepted Answer

The ZIBRO LASER FF 55 heater has several critical sensors for its operation: the ambient temperature sensor (thermistor), the burner thermistor, and the overheat sensor. A damaged sensor directly affects operation and safety. Here’s how to detect and manage them.

Signs of a damaged sensor: Check the error message displayed. The code E-6 indicates a malfunction of the burner thermistor, while code E-9 signals a disconnected or faulty ambient temperature sensor. You may also observe a refusal to start, unexpected shutdowns, irregular heating, or erratic responses to temperature changes. Visually inspect all accessible components: look for cracks, burn marks, corrosion, debris, or loose connections.

Checks and cleaning: Start by turning off the heater, unplugging it, and waiting for it to cool completely. Clean the air filter weekly with a vacuum cleaner and the grille with a soft damp cloth. For the ambient temperature sensor (2.5-meter cable located at the back), ensure it is not exposed to drafts, direct sunlight, or heat from the heater, as these conditions give incorrect readings and generate errors E-7 or E-8. Check that the cable does not touch the exhaust pipe. Clean the connectors with a dry cloth without rubbing hard.

Test after maintenance: After checking and cleaning, plug the heater back in and try to start it again. Observe the initial error message and note if it persists. Let it run for at least 5 minutes to check for stable operation.

When to call a professional: If the error code persists after these checks, or if you detect visible damage to the sensors, contact an authorized ZIBRO dealer. Do not attempt to disassemble or replace the sensors yourself - the manual explicitly states that no components should be removed by the user. Thermistors (sensors) are not normal wear parts covered by the 24-month warranty, but an authorized technician can replace them with the correct spare parts. Contact your dealer or PVG France at 02 32 96 07 47 for spare parts.

Question 3

What does the error code "20 Lo" mean on the ZIBRO LASER FF 55 heater and how can it be resolved?

Accepted Answer

The error code "20 Lo" on the ZIBRO LASER FF 55 heater generally indicates that the ambient temperature is too low for the device to operate normally. This code appears when the temperature in the room falls below the minimum threshold required for the heater to function properly.

Possible causes

Ambient temperature below the minimum operating temperature.
Temperature sensors obstructed, defective, or poorly positioned.
Temporary issue related to starting in an environment that is too cold.

Solutions to try

Check the ambient temperature: Ensure that the room is heated to a sufficient temperature. If necessary, raise the ambient temperature with another heating method before restarting the device.
Restart the heater: Turn off the device, wait a few minutes, then turn it back on to see if the error code disappears.
Check the temperature sensors: Ensure they are not covered in dust, obstructed, or damaged. Clean them gently if needed.

If the error code persists despite these checks, it is advisable to contact a qualified professional for a thorough diagnosis and possible repair.

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