Introduction
If your heater has a temperature sensor failure alarm proceed with component replacement or repair when possible.
ELECTRONIC BOARD WITH PROBE FOR DE LONGHI FAN HEATER TCH7091ER TCH7092ER
Replacement part available at eBay
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Heater unit bricked with PF error (fault temperature sensor)
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Remove the four Phillips screws with a Phillips screwdriver
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Remove the remaining 2 screws with a Torx screwdriver
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Remove the cover
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Open the clamps by unhooking them with pliers or using a flathead screwdriver.
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With a soldering iron I proceeded to weld the broken part and to connect the 2 tracks by applying electric wire and some tin.
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To reassemble your device, follow these instructions in reverse order.
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