Pentair MiniMax NT LN installation manual Troubleshooting Instruction, Troubleshooting Ddtc

Section V. Troubleshooting 28

Troubleshooting Instruction

TROUBLESHOOTING (DDTC)

The DDTC temperature display contains three LED’s with a decimal point between the first and second, this display is also used to display an error code if for some reason there is a failure within the heater control system or a DDTC internal fault. The DDTC will display the actual temperature or set-point temperature or OFF, as selected by the user. When DDTC detects an error, the display will show Exx, see Figure 27, where Exx is the error code of DDTC fault, see Table 11. Codes 1 through 9 indicate a “soft lockout” error that means after these errors are fixed, the heater will resume normal operation and restart immediately. Code ERR indicates a “hard lockout” error that means after these errors are fixed, you need to reset the power of the heater through the switch on the bottom of the electrical junction box on the right side of the cabinet.

NOTE: If Code ERR is shown on the LED display at any time, turn the heater off, (from power switch), then turn on the heater again. If the error code is still displayed, call a certified Pentair Service Technician for repair.

Error Code	Error Description
E01	System Low Voltage
E02	High Temperature Limit
E03	Thermal Fuse Open
E04	Fan Failure
E05	Ignition / Flame Failure
E06	Gas Valve / Module Failure
E07, E08, E09	Not Used
ERR	Call Pentair's Technical Service Department at: (800) 831-7133

Table 11.

P/N 472089 Rev. E 4-19-05