Enter/Exit Service Mode; Troubleshooting & Service Mode; Diagnostic Information Check System Indicator - Hayward OnCommand Operation Manual

Note: A setting of 0:00 will display as "manual on/off". The countdown automatic turn off
function is disabled but manual operation is still permitted. There may be other automatic or
manual operations that prevent the relay/valve from operating—see a more detailed discussion
under Automatic System Operation/Timers Menu/Aux Timeclock or in Troubleshooting/Diag-
nostic Information.
Enter/Exit Service (or Service—Timed) Mode
1. Go to OnCommand main unit (normally mounted near the pool equipment).
2. Pressing the "Service" button rotates through normal operation (red LED off), service mode (red
LED on continuously) and service-timed mode (red LED flashing).
Note: This operation can only be performed at the main OnCommand unit. Both "Service"
and "Service-Timed" disable all automatic programmed operations and allow manual opera-
tion from the main unit only. The buttons on the remote display/keypads will still be able to turn
equipment off in case of an emergency, but will not turn any equipment on. If the system is in
"Serviced-Timed" it will automatically switch back to normal operation at the end of the 3
hour time period.
Troubleshooting and Diagnostic Information
The OnCommand provides 2 different tools to aid in troubleshooting any problems that may occur in your pool
and/or spa system. The Service mode will allow you to disable automatic operation and manually control most of
the equipment (the heater and general purpose Valve3 output are the exceptions). The Diagnostic Menu will
provide some detailed information regarding system operation.
While both of the features are primarily intended for the use of the professional service technician, their function is
fully explained below. .
Service Mode
The main unit keypad has a SERVICE button that is used primarily during servicing of the pool equipment.
If you want to completely disable the automatic operation and operate the system manually, you can put the system
into Service or Service-Timed mode by pressing the "Service" button. Pressing the "SERVICE" button once will
switch the system into service mode which means that all automatic functions are disabled, the optional remote
display/keypads are disabled (except for manual turn off for emergencies). The outputs can be manually controlled
by pressing the buttons on the local display/keypad. The red "SERVICE" LED will be illuminated and the
OnCommand will remain in this mode of operation until manually taken out of service mode.
Pressing the "SERVICE" button again will cause the OnCommand to switch to service-timed mode which is very
similar to service mode, except that the OnCommand will automatically return to normal operation after 3 hours.
During service timed operation, the "SERVICE" LED will flash and the time remaining will be displayed on the
remote display/keypad(s).
Pressing the "SERVICE" button again, will return the OnCommand to normal (automatic) operation.
Check System Indicator
The "CHECK SYSTEM" LED will alert you when the OnCommand detects any of the following conditions that
are abnormal and require attention for optimal operation of your pool. Press "<" or ">" to view all of the existing
"Check System" conditions.
• Water Sensor -- If the water sensor is either an open or short circuit.
• Air sensor -- If the freeze protection feature is enabled (Configuration Menu/ Filter Config.) and the air sensor
is either an open or short circuit.
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