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Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 21377
Experience:  40+ yrs. experience as a licensed oil & gas technician.
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I would like to know if you know anything about a 3L code on

Customer Question

I would like to know if you know anything about a 3L code on a Buderus Plus GB 132 please. We went on vacation, turned the system off for 2 months. Upon our return we were told by a phone tech that the fam motor is no good. Why would a fan motor break due to a shut off and on? Too strange. You had this question four years ago with no success, since the 3 L code is not in the manual. Thank you
Submitted: 2 years ago.
Category: HVAC
Expert:  Rick replied 2 years ago.
A 3L code is "Blower off during safety test". A bad motor is one possibility, a bad cord/connection to the blower motor is another possibility as is a faulty control board. There's usually no way to know the cause of a failure. We can only fix it once it occurs.

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