Insufficient water flow
- Check Fuse "A"
- Check boiler pump.
- Ensure plumbing is correct. Refer to Supplementary Documentation section 2.0 System Piping. Check that water pressure is at least 15PSI.
- Boilers Only - Boiler heat transfer surfaces may be fouled with scale or magnetite. Clean with Fernox DS-40 Descaler and Cleanser.
