E7
Giant
Inducer/Blower Motor Fault
E7 error and blower fan does not start on power‑vent Giant water heater
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed inducer/blower motor, Seized blower wheel, Faulty blower pressure switch, Open blower wiring harness
How to Fix / Troubleshooting
Safety first: Turn off electrical power and gas. Do not bypass safety switches.
- Listen and observe: When calling for heat, the blower should start before ignition. If it hums or is silent, suspect a blower issue.
- Inspect blower assembly: Remove the top or side cover to access the Giant power‑vent blower. Check for debris or foreign objects in the blower wheel.
- Check wiring: Verify the blower motor plug is fully seated on the control board and that wires are not burned or broken.
- Test pressure switch tubing: Ensure the rubber tube from the blower housing to the pressure switch is not kinked or blocked with condensate.
- Replace components: If the blower does not run with proper voltage present, replace the Giant inducer/blower motor. If the blower runs but E7 persists, the pressure switch or control board may need replacement by a technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Giant Inducer/Blower Motor
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