HVAC Parts LibraryMetro Vancouver
Comprehensive emergency replacement parts for furnaces, air conditioners, heat pumps, and boilers
CALL NOW: 778-909-5731Every HVAC Part You Might Need
We stock and source emergency replacement parts for all major HVAC equipment types. Our technicians carry common parts in their vehicles for same-visit repairs across Metro Vancouver.
Furnace Parts
16 replacement parts
Furnace Heat Exchanger
The heat exchanger transfers combustion heat to your home's air. A cracked heat exchanger can leak carbon monoxide and requires immediate emergency replacement.
Warning Signs:
- •Carbon monoxide detector alarming
- •Visible cracks during inspection
- •Strange smells like formaldehyde
- +2 more signs
Furnace Blower Motor
The blower motor powers the fan that circulates warm air. A failed blower motor means no heat reaches your rooms, requiring emergency replacement.
Warning Signs:
- •No air from vents
- •Weak airflow
- •Squealing or grinding noises
- +2 more signs
Furnace Ignitor
The ignitor lights the gas burners. A failed ignitor prevents the furnace from firing, leaving you without heat.
Warning Signs:
- •Furnace clicks but won't fire
- •No flame visible
- •Furnace starts then shuts down
- +2 more signs
Flame Sensor
The flame sensor detects the burner flame and keeps the gas valve open. A dirty or faulty sensor causes short cycling.
Warning Signs:
- •Furnace cycles on and off repeatedly
- •Flame goes out after a few seconds
- •System locks out
- +2 more signs
Furnace Gas Valve
The gas valve regulates fuel flow to the burners. A malfunctioning valve can prevent ignition or cause unsafe conditions.
Warning Signs:
- •No gas flow to burners
- •Furnace won't start
- •Gas smell near furnace
- +2 more signs
Furnace Thermocouple
The thermocouple senses the pilot flame and signals the gas valve to stay open. A failed thermocouple causes the pilot to go out.
Warning Signs:
- •Pilot light won't stay lit
- •Furnace won't stay running
- •Visible damage to thermocouple
- +1 more signs
Furnace Control Board
The control board manages all furnace electronic functions. A failed board causes erratic operation or complete failure.
Warning Signs:
- •Error codes with no apparent cause
- •Erratic furnace behavior
- •Complete system failure
- +2 more signs
Furnace Capacitor
The capacitor starts and runs the blower motor. A bad capacitor causes motor hum, slow start, or failure.
Warning Signs:
- •Motor hums but won't start
- •Slow or sporadic motor start
- •Audible humming, no airflow
- +2 more signs
Limit Switch
The limit switch monitors furnace temperature and shuts down if it overheats. A faulty switch causes frequent shutdowns.
Warning Signs:
- •Furnace shuts down prematurely
- •Frequent cycling
- •Cold air from vents
- +2 more signs
Furnace Pressure Switch
The pressure switch verifies proper venting. A failed switch prevents furnace startup as a safety precaution.
Warning Signs:
- •Furnace won't start
- •Clicking but no ignition
- •Pressure switch error codes
- +2 more signs
Draft Inducer Motor
The draft inducer pulls combustion gases through the heat exchanger and out the vent. A failed inducer prevents safe operation.
Warning Signs:
- •Whining sounds at startup
- •No draft inducer sound
- •Intermittent error codes
- +2 more signs
Furnace Transformer
The transformer steps down voltage from 120V to 24V to power the furnace control system. A failed transformer leaves the furnace completely unresponsive with no power to control circuits.
Warning Signs:
- •Furnace completely dead with no indicator lights
- •Thermostat display blank or unresponsive
- •Burned smell near electrical compartment
- +2 more signs
Furnace Rollout Switch
The rollout switch detects dangerous flame rollout from the burner compartment. A tripped switch shuts down the furnace and indicates a serious venting problem.
Warning Signs:
- •Furnace won't start with rollout error
- •Manual reset button needs pressing
- •Scorch marks near burner compartment
- +2 more signs
Furnace Condensate Pump
High-efficiency furnace condensate pumps remove acidic water produced during combustion. A failed pump causes water backup and safety shutdown to prevent flooding.
Warning Signs:
- •Water pooling around furnace base
- •Furnace shuts down with condensate error
- •Pump motor runs but doesn't discharge
- +2 more signs
Gas Burner Assembly
The burner assembly houses gas jets where combustion occurs. Dirty or misaligned burners cause incomplete combustion, soot, and inefficient operation.
Warning Signs:
- •Yellow or flickering flame instead of blue
- •Soot buildup around furnace
- •Delayed ignition with pop or bang
- +2 more signs
Furnace Door Safety Switch
The door switch prevents furnace operation when the blower door is removed. A broken switch prevents the furnace from running even with the door properly installed.
Warning Signs:
- •Furnace won't start after filter change
- •Furnace runs with door off but not on
- •Clicking when door is pressed
- +2 more signs
AC Parts
10 replacement parts
AC Compressor
The compressor circulates refrigerant and enables cooling. A failed compressor means no cold air.
Warning Signs:
- •AC runs but no cooling
- •Loud buzzing or rattling
- •Breaker trips at startup
- +2 more signs
AC Capacitor
AC capacitors provide power to start and run the compressor and fan. A failed capacitor is one of the most common AC breakdown causes.
Warning Signs:
- •AC won't start
- •Humming from outdoor unit
- •Fan not spinning
- +2 more signs
AC Contactor
The contactor controls power to the AC unit. A burned contactor prevents the system from running.
Warning Signs:
- •Outdoor unit unresponsive
- •Clicking but won't start
- •Burned or pitted contacts
- +2 more signs
AC Fan Motor
The condenser fan motor pulls air across the coils. A failed fan causes the AC to overheat and shut down.
Warning Signs:
- •Outdoor fan not spinning
- •Loud grinding or screeching
- •Short cycling
- +2 more signs
AC Expansion Valve (TXV)
The TXV controls refrigerant flow into the evaporator. A faulty TXV causes poor cooling and possible compressor damage.
Warning Signs:
- •Poor cooling performance
- •Frost on indoor coil
- •Hissing or gurgling sounds
- +2 more signs
AC Sequencer
The sequencer staggers the startup of AC components to prevent electrical overload. A failed sequencer can prevent the unit from starting or cause components to engage in the wrong order.
Warning Signs:
- •AC unit clicks but only some components start
- •Delay between thermostat call and AC start is wrong
- •Compressor starts without fan or vice versa
- +2 more signs
Hard Start Kit
The hard start kit provides extra starting torque to help the compressor start under tough conditions. A failed start kit causes hard starting, especially in hot weather or after short off-cycles.
Warning Signs:
- •Compressor struggles to start in hot weather
- •Lights dim when AC tries to start
- •Compressor hums then trips on overload
- +2 more signs
AC Time Delay Relay
The time delay relay prevents short cycling by enforcing a minimum off-time before the compressor can restart. A failed relay can allow rapid cycling that damages the compressor.
Warning Signs:
- •AC compressor starts immediately after shutdown
- •Rapid on-off cycling
- •Compressor damage from short cycling
- +2 more signs
Condenser Coil
The condenser coil releases heat from refrigerant to the outdoor air. A damaged or corroded coil reduces cooling capacity and efficiency, requiring emergency replacement.
Warning Signs:
- •Reduced cooling performance
- •High discharge pressure readings
- •Visible corrosion or damage to coil fins
- +2 more signs
Evaporator Coil
The evaporator coil absorbs heat from indoor air into the refrigerant. A leaking or frozen coil reduces cooling and can cause water damage.
Warning Signs:
- •Warm air from vents despite AC running
- •Water leaking from air handler
- •Frost or ice on refrigerant lines
- +2 more signs
Heat Pump Parts
8 replacement parts
Reversing Valve
The reversing valve switches between heating and cooling modes. A stuck valve leaves you stuck in one mode.
Warning Signs:
- •Stuck in one mode
- •Hissing sounds from valve
- •Cold air when set to heat
- +2 more signs
Defrost Control Board
The defrost board manages the defrost cycle for winter operation. A failed board causes ice buildup and reduced heating.
Warning Signs:
- •Ice buildup on outdoor unit
- •Heat pump not heating
- •Excessive water under unit
- +2 more signs
Heat Pump Accumulator
The accumulator prevents liquid refrigerant from reaching the compressor. A failed accumulator can lead to compressor damage.
Warning Signs:
- •Compressor making unusual sounds
- •Reduced capacity
- •Frost on accumulator
- +2 more signs
Crankcase Heater
The crankcase heater keeps compressor oil warm to prevent refrigerant migration. A failed heater leads to hard starting and potential compressor damage in cold weather.
Warning Signs:
- •Compressor hard to start in cold weather
- •Loud rattling or knocking at startup
- •Premature compressor failure
- +2 more signs
Auxiliary Heat Relay
The auxiliary heat relay controls electric heat strips for backup heating. A failed relay leaves you without supplemental heat during extreme cold weather.
Warning Signs:
- •Aux heat not engaging when needed
- •Cold air from vents in very cold weather
- •Relay chattering or clicking rapidly
- +2 more signs
Electric Heat Strip
Electric heat strips provide backup heating inside the air handler. A burned-out heat strip reduces heating capacity when you need it most.
Warning Signs:
- •Warm but not hot air from vents
- •Aux heat runs but no temperature rise
- •Tripping breaker when aux heat engages
- +2 more signs
Freeze Stat / Low Ambient Control
The freeze stat prevents indoor coil freezing during low-temperature operation. A failed sensor allows coil freeze-up and potential water damage from ice melt.
Warning Signs:
- •Indoor coil freezing during operation
- •Water damage from frozen coil
- •System shut down with no ice present
- +2 more signs
Air Handler Blower Wheel
The blower wheel moves air across the indoor coil. A cracked or unbalanced wheel causes vibration, noise, and reduced airflow.
Warning Signs:
- •Loud vibration from air handler
- •Whistling sounds from vents
- •Reduced airflow from registers
- +2 more signs
Boiler Parts
5 replacement parts
Circulator Pump
The circulator pump moves hot water through your heating system. A failed pump means no heat circulation.
Warning Signs:
- •No heat despite boiler running
- •Humming but no circulation
- •Leaking water from pump
- +2 more signs
Expansion Tank
The expansion tank absorbs excess pressure from heated water. A failed tank causes pressure relief valve discharge.
Warning Signs:
- •Pressure relief valve dripping
- •Pressure above 30 PSI
- •Water hammering noises
- +2 more signs
Zone Valve
Zone valves control hot water flow to different areas. A failed valve leaves one zone without heat.
Warning Signs:
- •One area has no heat
- •Zone unresponsive to thermostat
- •Clicking but no heat
- +2 more signs
Backflow Preventer
The backflow preventer stops contaminated water from entering the fresh supply. A failed unit can contaminate drinking water.
Warning Signs:
- •Water leaking from relief port
- •Failed backflow test
- •Rust or debris around valve
- +2 more signs
Boiler Pressure Relief Valve
The PRV releases excess pressure to prevent boiler explosions. A faulty valve is a critical safety concern.
Warning Signs:
- •Constant dripping from discharge
- •Valve stuck open
- •Valve stuck closed (no discharge)
- +2 more signs
Emergency Service by Equipment Type
Furnace Parts
- • Heat exchangers & blower motors
- • Ignitors & flame sensors
- • Gas valves & thermocouples
- • Control boards & capacitors
AC Parts
- • Compressors & capacitors
- • Contactors & fan motors
- • Expansion valves
- • Refrigerant components
Heat Pump Parts
- • Reversing valves
- • Defrost control boards
- • Accumulators
- • Compressor protection
Boiler Parts
- • Circulator pumps
- • Expansion tanks & zone valves
- • Backflow preventers
- • Pressure relief valves
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