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Errors


Boiler type PureFire PF-399

Error code A24

Cause:

Flow_sw_not_open

- CH flow switch not working.

Solution:

- Check for electrical continuity between wires connected to terminals 9 & 10 from the field supplied flow switch.
- If there is no continuity, check to be sure the circulator is working.
- If the circulator is working correctly, check the flow switch.