Indoor And Outdoor Units Error Codes; Indoor Unit Front Panel Indicators; Control Board - Johnson Controls DHPM09NWM42Q1 Installation Manual

898150-UIM-B-0113
SECTION XXIII: INDOOR AND OUTDOOR UNITS ERROR CODES
This section identifies error codes that appear on the front panel of the indoor unit or outdoor unit control. Many of the error codes will automatically
clear themselves when the error no longer exists. However some error codes may require disconnecting power to the system at the unit disconnect
switch or circuit breaker in order to clear them and to resume normal system operation.
* The temperature readout (either
temperature setpoint or indoor ambient)
will be replaced by an error code if there
is a malfunction. If multiple errors are
detected, the display will alternate
between each error code.
NOTE:
No history is kept on past error codes.
FIGURE 50: Indoor Unit Front Panel Indicators
FIGURE 51: Control Board
24
GREEN LED
YELLOW LED
72
RED LED
Johnson Controls Unitary Products