FUSES for LAARS FT Circuit Boards
FUSES for LAARS FT Circuit Boards FT140, FT 199-Combi and Heat Only . Photo below.
There are two replaceable glass type fuses mounted on the circuit board.
The uppermost (top fuse) is a 10 AMP /125 Volt fuse and is for the 120V circuitry (internal pump, blower etc.)
The fuse below that is a 2 AMP /125 Volt fuse for the 24V circuitry (relays, sensors etc.)
Please NOTE
Prior to 2018 these fuses were of slightly different amperages .
4 Amp fuses were utilized for 24 V circuitry .
A 2 Amp fuse can now be safely utilized in place of the older 4 Amp fuses.
Karl has been working with LAARS to secure these fuses.
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