Why Is My Heat Pump Running on Auxiliary Heat Constantly?
BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning provides expert advice on this common question for homeowners in Greater Vancouver. If you need professional service, our licensed technicians are available across the region.
Related Services from BC Wide
BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning provides comprehensive heat pump service across Greater Vancouver, including diagnostic inspections, emergency repairs, scheduled maintenance, and system replacement. Our Red Seal certified technicians service all major brands and carry OEM parts in their vehicles. For emergency service related to this question, call (604) 330-3953.
Answer: Why Is My Heat Pump Running on Auxiliary Heat Constantly?
If your heat pump is running constantly on auxiliary/emergency heat, it means the heat pump itself cannot satisfy the thermostat. In very cold weather (below -15°C to -25°C depending on your model), auxiliary heat is normal. But if it runs constantly in moderate conditions, there may be a problem. Possible causes include: the heat pump has lost capacity due to a refrigerant leak, a compressor failure, or a reversing valve issue. The thermostat may be set too high, forcing the system to rely on backup heat. Or the outdoor unit may be frozen and unable to absorb heat. A technician can diagnose whether the heat pump is operating correctly or needs repair.
When to Call a Professional for Help
While understanding the answer to this question is helpful, some situations require professional expertise. If you are uncertain about any step, if the problem recurs, or if you notice any signs of gas odour, carbon monoxide, or electrical hazards, contact BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning immediately. Our licensed technicians across Greater Vancouver can provide expert diagnosis and repair. We recommend professional service for any issue that involves gas, electrical components, or safety-critical systems.
Safety Reminder
If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.