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Thread: Grunaire F1 error code

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03-09-2010, 03:21 AM #1

mshynson Guest

Grunaire F1 error code

i have two 121-hx units. a few months ago i got a F1 error code on one. replaced the PFC board and problem solved. now i have the same code on the other unit. replaced the PFC but still have the F1 code. all connections look good. any ideas? these units are great when they work......

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