Pressure Switch Replacement in Flagstaff, AZ
The pressure switch is a key safety device in your gas furnace. When the furnace starts, the inducer motor creates a slight draft to pull exhaust gases out through the vent. The pressure switch senses that draft and only allows the burners to light once venting is confirmed. If it can’t confirm safe venting, it keeps the furnace from firing. Executive Heating & Air Conditioning tests and replaces pressure switches and finds the underlying cause, so your furnace lights reliably and vents safely.
Call (928) 440-5388 to schedule pressure switch service today.
Why Choose Executive Heating & Air Conditioning
We are a family-owned company with roots in the heating and cooling trade going back to 1988. A pressure switch error usually means the switch is doing its job and something else is wrong. Our technicians check the vent pipes, inducer motor, rubber hoses, and condensate drain before replacing the switch itself. Furnaces at high elevation may also require a specific high-altitude pressure switch, and we make sure the right part is installed for your equipment and location.
Signs of a Pressure Switch Problem
Call us if your furnace shows any of these symptoms:
- The inducer runs, but the burners never light
- The furnace tries to start, then locks out
- Flashing error codes for an open or stuck pressure switch
- Heat that works sometimes but not at others
- A clicking sound from the furnace with no ignition
Common causes include blocked or disconnected vent pipes, a cracked or clogged pressure hose, a weak inducer motor, and a backed-up condensate drain on high-efficiency furnaces. In cold weather, condensate lines and drains can freeze, which also triggers pressure switch errors. Because the switch works directly with the inducer motor and control board, we test those parts as well. Never bypass a pressure switch, since it protects your home from improper venting.
Contact Executive Heating & Air Conditioning Today
A furnace that won’t light needs prompt attention, especially in freezing weather. Our team will find the real cause and get your heat back on safely and quickly. For other ignition problems, see our hot surface igniter service.
Call (928) 440-5388 for pressure switch replacement in Flagstaff, AZ.
