See our 32 reviews on
See our 32 reviews on
ERROR CODE: F33
ERROR TYPE: Central Heating Return Temperature Sensor Error
DESCRIPTION: This error is received if the central heating return temperature sensor is short-circuited, open-circuit, or damaged. Domestic water and central heating request are stopped. When this error is deleted, normal operation begins.
TYPE: ERROR
SOLUTION:
1- Make sure the NTC cables in the return water line are plugged in.
2- If the cables are plugged in, check the cables end-to-end. Make sure the cables are undamaged and plugged into the mainboard terminal. If there is a damaged wire, replace the low voltage cable group. 3- If the cables are not damaged, measure the resistance between the terminals of the NTC and check that their values are appropriate. 4- If the resistance value between the NTC terminals is according to the table, replace the return and supply water NTCs. If the error code does not change, replace the mainboard. If the error code becomes F35, replace the return water NTC.
Updated on 9 January 2024, Tuesday
