Heating and cooling
Service the air conditioning
Every 2 years, in May.
What to do
Have the coil cleaned and the refrigerant charge checked before the first hot week.
Why it matters
A dirty condenser coil makes the compressor run hot, and the compressor is the expensive half of the unit.
Where this comes from
CMHC CE 47 — "have serviced every two or three years". Light duty in Alberta, so the longer end is fair.
Catch it while it’s still maintenance.
Domisura keeps this schedule for your house — dated to when things went in, and reminding you when each task comes round. The record stays with the address when you sell.
Start a record for your homeGeneral guidance, not professional advice. For gas, electricity, structure or water, get a qualified trade.