Daikin Enfinity - Page 44

troubleshooting
Table 22: Compressor low suction temp
Description Type Yellow Green Red
Compressor Low Suction Temp Fault Flash OFF OFF
• Check water ow (heating operation)
• Check airow (cooling operation)
• Entering water and air temperatures should be within the operating limits.
Table 23: Freeze fault detect
Description Type Yellow Green Red
Freeze Fault Detect Fault Flash OFF Flash
• Low entering water temperature (below 35°F standard range or 13.5°F extended range)
Table 24: Condensate overflow
Description Type Yellow Green Red
Condensate Overow Fault ON OFF OFF
• Poor condensate drain
• Check the resistance to ground on condensate wire. This should be open if there is no water in the pan.
Table 25: Serial EEPROM corrupted
Description Type Yellow Green Red
Serial EEPROM Corrupted Fault ON ON ON
• Replace main board
Table 26: Waterside economizer low temp cutout (WSE control & call for cooling)
Description Type Yellow Green Red
Waterside Economizer Low Temp
Cutout (WSE Control & Call for
Cooling)
Mode Flash ON Flash
• Water temperature is below 35°F.
Table 27: Service test mode enabled
Description Type Yellow Green Red
Service Test Mode Enabled Mode Flash Flash Flash
• Jumper JP1 is shorted for test mode operation.
Table 28: Unoccupied mode
Description Type Yellow Green Red
Unoccupied Mode Mode ON ON OFF
• Terminal U on main control board is connected to common from external source.
Table 29: Occupied, bypass, standby, or tenant override modes
Description Type Yellow Green Red
Occupied, Bypass, Standby, or Ten-
ant Override Modes
Mode OFF ON OFF
• Unit is operating normal. It may currently have a control signal or ready to operate when a control signal is active.
IM 1059-12 LARGE VERTICAL WSHP 44 www.DaikinApplied.com