An error code 61 indicates a Fan Motor abnormality.
Please verify that the Fan Motor connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board.
The heater has certain RPM (rotations per minute) ranges it expects the fan to spin at during different stages, such as pre-purge, during ignition and during operation. If the fan is not spinning at all or spinning much slower or faster than expected, the unit will give a 61 code.
The troubleshooting flow chart below will outline the steps to take when troubleshooting an error code 61.
If the EC61 does not reappear and only appears in the error code history, it could be due to a cause other than the unit such as a temporary blockage in the venting due to wind gusts or obstruction, a drop in the supply voltage (below 108 VAC), etc. Anything that would cause the fan to not spin at all, or to spin far outside of expected ranges will cause the EC61.
For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.