T2DA : Low Temperature A

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

Flow is too high at current setpoint

Use a smaller mix chamber that is rated for the unit in use. If recirculating, decrease flow or decrease temperature setpoint.

Bad RTD or bad RTD placement against heater

Swap A and B heater output cables and RTD cables and see if issue follows. If so, replace RTD.

Loose heater wires or connector

Check for loose heater element wires or loose green connector at TCM.

Bad heater element

Confirm resistance of heater. Heater resistance should be 18-21 Ω for each heater element, 9-12 Ω combined for 10 kW systems, 6-8 Ω for 15 kW systems, and 4-6 Ω for 20 kW systems. If out of tolerance, replace heater element.