TESY CN 04 250 EIS W - Инструкция по эксплуатации - Страница 7

EN

Operation and Storage Manual of Panel Heater 

7

English

TROUBLESHOOTING

Prior to contacting the Customer Service Center, please check the items in the table below. 

PROBLEM

CAUSE

SOLUTION

The appliance doesn‘t work 

No power supply from the grid. 
Be sure that the product is plugged in and that the electrical 
outlet is working.

Plug into the power outlet and check position of the ON/OFF 
switch.

The temperature may be set too low.

Set the temperature to a higher position.

The “Protection from children” may be activated.

See the section “Protection from children” in the user manual.

The delayed start is working.

Press the Turn ON button from control board.

Room does not get warm enough 
although the appliance is hot

Appliance overheating. High limit safety cut-out limits heating 
output.

Eliminate the cause (cover, dirt or obstructions at the air inlet or 
outlet).Observe minimum clearances according to mounting 
instructions.

Check the Temperature correction for the sensor

See the temperature shown on the display of the appliance. 
Measure the temperature at a place where the temperature is 
“comfortable” enough for you. If you find a difference within 
a range of ±4°С, you can set the necessary correction in the 
convector’s menu by entering the temperature difference 
resulting between the value on the display and the actually 
measured temperature. 

The heat demand of the room is higher than the appliance 
output.

Remove heat losses (Close windows and doors. Avoid constant 
venting.)

Check if the power of your device is adapted to the size of your 
room.

Recommended an average of 100 W/m2 for a ceiling height of 
2,50m or 30W/m3

Open window/door detection does not 
respond

Appliance does not detect a pronounced temperature drop due 
to venting. (Open window/door detection requires previously 
stable room temperature.)

Avoid obstructions that may prevent normal air exchange 
between the appliance and the indoor air.

Open window/door detection is not enabled

Switch on open window/door detection.

„Adaptive start“ function does not work 
as required

This function works only in weekly mode.

Switch on Adaptive start function.

Severely fluctuating room temperature or the appliance learning 
procedure has not been completed.

Wait a few days for behavior to stabilize.

“Adaptive start” function is not enabled.

Switch on the „Adaptive start“ function in the menu.

Display  shows “t1”  or “t2“

The self-diagnostic system has found a problem with the 
temperature sensor 

“t1” indicates a disconnected cable at the sensor 

“t2” indicates short circuit at the sensor

In this case the electric convector will be automatically switched 
off and it can be switched on again only after the problem has 
been fixed by the authorized service representatives. 
Contact the authorized service center or the retailer you bought 
the product from.

Dirty marks appear on the wall around 
the device

The dirty marks come as a result of air contamination.

Make sure that some fresh air enters the room regularly, 
especially if it is used for smoking.

The device does not follow internal 
programming commands

The date and time are not set correctly.

Check the set date and time.

The appliance is under Open window/door detection.

Switch off the Open window/door detection.

Sounds/Noises

Emitting faint noises during the heating process and shortly 
after the set temperature is reached, is not something unusual. 

Such effect is in result of the natural materials expansions during 
the rapid temperature increase and following cooling of the 
metals used for the product manufacturing.

Yellowish stains on the grid

Such stains could be in result of covering the product with wet 
clothes.

Do not cover the product! Such actions are not allowed, because 
they block the air convection and will damage the product 
irreparably, leading to serious risk for your health and properties.