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Filters, outdoor clearance, drainage and professional inspection: the checks that protect performance before heating season.
Key decisionDecision: complete the check before the first failure, not during the first cold snap.
Owner checks
Follow the manual to clean or replace filters. Keep air inlets and outlets clear. Visually inspect the outdoor unit without opening equipment or working on electrical components.
Professional checks
An annual inspection can cover coils, drainage, connections, defrost operation and settings. Natural Resources Canada recommends servicing at the end of summer before heating season.
Records to keep
Keep the model, serial number, invoice, installation date and service report together.
Official sources
Updated :
Programs and criteria can change. Always verify the official source before making a decision.