TROUBLESHOOTING HeatNet Control V3
Page 116
3. Newer firmware versions allow the SETPOINT
TIMER failsafe feature to be disabled by writing a zero
(0) to the timer. The feature will automatically revert
back to the enabled state whenever the control is reset
or power cycled. The SETPOINT TIMER failsafe
feature can permanently disabled (or enabled) or can be
adjusted up to 4 hours before a new value is written.
This setting can be changed in the ADVANCED
SETUP->COMMUNICATIONS menu.