Why Does My Boiler Keep Losing Water Pressure?
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.
Answer: Why Does My Boiler Keep Losing Water Pressure?
If your boiler pressure gauge drops below 1 bar on a regular basis, there is likely a slow water leak somewhere in your heating system. Common causes include a leak from a radiator valve, pipe joint, or the boiler itself — or an expansion tank that has lost its air charge. When the expansion tank fails, water pressure fluctuates wildly as the system heats and cools, often triggering the pressure relief valve to discharge water. Less common causes are an automatic air vent that is leaking or a pinhole leak in a radiator. If you find yourself topping up the pressure weekly, professional investigation is needed to locate and fix the source.
Related Services from BC Wide
BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning provides comprehensive furnace 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.
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.