What Is a Reversing Valve on a Heat Pump and How Does It Fail?
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.
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.
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: What Is a Reversing Valve on a Heat Pump and How Does It Fail?
The reversing valve is the component that changes the direction of refrigerant flow in your heat pump, switching between heating and cooling modes. When the valve fails, you may notice the heat pump blows cold air when set to heating mode, or warm air when set to cooling mode. Other symptoms include a clicking sound coming from the valve as it tries to shift but cannot, the system getting stuck in one mode regardless of the thermostat setting, or the heat pump running but providing no temperature change. Reversing valve replacement is one of the more expensive heat pump repairs — costing $800-1,500 — because it requires recovering the refrigerant, replacing the valve (which requires specialized brazing skills), and recharging the system.
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.