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Control Lockout
The heater is equipped with a Control Lockout feature to prevent unauthorized tampering or
adjustment of the control settings.
To lock out the controls
1. Press the MODE and DOWN keys simultaneously for 5-seconds.
2. Choose a three-digit PIN, using the UP and DOWN keys to select the
digits and the MODE key to lock in selections.
3. Confirm your selection and record your PIN.
To unlock the controls
1. Press MODE, UP or DOWN key to bring up the ENTER PIN menu.
2. Enter the PIN that was used to lock the control. (PIN code 101 will disable
the lockbox until the power is cycled off and on.)
3. Successfully unlocking the control will display "LOCKBOX CLEARED".
Failure to enter the correct PIN will display "INVALID PIN".
*NOTE: In the event that the user-selected PIN is lost or does not clear the Control Lockout,
use the Program Menu to SET FACTORY DEFAULTS (see page 33). This will clear the PIN
and allow normal operation and selection of a new PIN if desired.
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