Beretta Overheating Plastic Components / Contaminants

Furnace emits a chemical or plastic smell during operation

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Object left on furnace casing, Duct liner overheating, Electrical component overheating on control board or fan motor

Safety: Turn off power and do not operate the furnace until the source is identified.

Inspect around furnace: Ensure no plastic items, paint cans, or chemicals are stored on or against the Beretta furnace or flue.
Check control compartment: Look for discolored plastic connectors or components on the control board and fan motor.

Any sign of melting or charring requires immediate professional service.

Hard 4/5

Main Control Board

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