Loud rattling or vibrating noise from the Fairland heater during operation.

Safety: Turn off power before tightening any screws or removing debris. Keep hands clear of the fan when power is on.

Steps:

• Check for debris: Inspect the fan area and remove any twigs, leaves, or objects touching the blades.
• Tighten panels: Use a screwdriver to snug all accessible panel and fan guard screws on the Fairland cabinet.
• Level the unit: Ensure the heater sits flat on a solid, level base. Shim if necessary to eliminate rocking.

If noise persists:

• A technician should inspect compressor mounts and internal components for wear or damage.