VERIFIED
Restricted air flow: what the code reports
F4E3 is the restricted air flow message. Whirlpool’s manuals tie it to a blocked lint screen or a blocked vent, and a vent that is crushed, kinked or routed with too many turns can cause the same thing. The wording covers regular dryers and commercial-grade residential dryers.
- The dryer carries on running while F4E3 is showing.
- Pressing any key removes the code and brings back the estimated time remaining.
Vent checklist
- Start with the lint screen and clear it.
- Follow the vent from the back of the dryer to the wall and look for a crushed or kinked stretch.
- Confirm that stretch holds no lint or debris.
- Do the same for the exhaust hood on the outside of the house.
- Compare the vent system with the run length and elbow count allowed for your vent type, which the Installation Instructions spell out.
- Choose a Timed Dry heated cycle and start the dryer again.
When the message is still there, the whole venting run in the home needs cleaning, and a venting specialist is the person for that.
Laundry tower entry
Tower listings name something else: the main heater is the potential cause. Take power off the dryer for one minute (5 minutes for the washer section) and schedule service if F4E3 comes back.
Related codes
- F4E4: low or no line voltage, which can stop the heater coming on.
- F4E1: the heater or heater relays.
- F4E2: the main heater.
Dryer service in San Francisco and the Bay Area
When the vent work leaves F4E3 on the display, a technician visit is the next step for a dryer in San Francisco or elsewhere around the Bay Area. Read about Whirlpool dryer repair, then ring (415) 687-4102 with the code, the model number and a note of which vent parts you cleaned.
Model compatibility: Whirlpool reuses codes across series and model years, so F4E3 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
