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3002503 11.06
Problem Possible Cause Solution
The fan is not
operating
- No power to the fan - Check the power supply wires in the junction box by the fan.
- Check the circuit breaker.
- Check that the fan is actually turned on.
The fan is not running
at full speed and/or is
humming
- The capacitor is
improperly connected
or not connected at all
(RSIB 300 only)
- Check the connections inside the junction box. The capacitor must be installed
according to the wiring diagram.
The fan is rotating
backwards (except
RSIB 300)
Phase sequence in
the power to the fan is
reversed
- Swap two phases in the junction box.
The fan is vibrating
vigorously
- A transportation
device has not been
removed.
- Foreign matter is
stuck in the impeller.
- A ball bearing is
damaged.
- A balancing weight
has fallen off impeller
- Remove the transportation device.
- Turn off the fan and remove the foreign matter.
- Turn the fan off. After the motor has stopped revolving, spin the impeller and listen
for a grinding noise from the motor. If necessary, replace bearing or entire motor.
- Re-balance impeller or replace it. Check motor for damages.
The fan stops in the
middle of firing cycle
The motor is over-
heating
Check the flue gas temperature at the fan inlet. The temperature should not exceed
500°F (300°C) during continuous operation. Call EXHAUSTO for advise.
6.3 Troubleshooting