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4.4.g Positioning Mode Jumper
WARNING
- Failure to heed the following may result in injury or death.
CAUTION
- Failure to heed the following may result in equipment damage.
Default Position
The position of a jumper on the heat pump's microprocessor is set for "Heat-Cool". Altering this jumper
setting will cause the heat pump to loose controller functionality and is not recommended. If needed,
the heat pump jumper can be verified and repositioned.
Verifying Position
1. Apply electrical power to heat pump.
2. Review the available modes by repeatedly pressing the "MODE" button:
Heat only models display "OFF" and "HEA".
Heat-Cool models display "OFF", "HEA", "COO", and "AHC".
3. If the modes do not display correctly the jumper is placed in the wrong position.
Repositioning as Needed
1) Disconnect electrical power.
2) Unscrew control panel from front upper access panel. Gently twist and push control panel
into hole in access panel.
3) Remove heat pump's upper front access panel.
4) Unscrew control panel assembly and gain access to control board.
5) Remove and reposition jumper located at the upper right hand corner of control board. See
Figure 17. Jumper must cover middle and lower pin as shown for "Heat and Cool".
Great Big Bopper Microprocessor Board
"Y" and "Z"
connection
points
Risk of Electrical Shock- Ensure all electrical power to the heat pump has been
disconnected prior to removing the heat pump front access panel. Leave
electrical power disconnected throughout the following jumper repositioning
procedure.
This is NOT an owner or operator procedure. Repairs must not be attempted by
untrained and/or unqualified individuals.
"FS-2"
connection
points
Figure 16
Page 23
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