Troubleshooting Guide -
Tranquility
®
Digital (DXM2) Packaged Units
Rev.: 01/15/14
30
Geothermal Heat Pump Systems
Checking Pump Power Cord
First, remove the power to the unit and
allow 5-10 minutes for the capacitor to
discharge.
After discharge, remove two wires
from capacity. Read UF on side and
verify with volt meter that can read UF.
It will also show ± range for reading.
Note: Rating will change with
different size units.
Verifying Capacitor
Verify 208-240V on pump power cord.
Note: Before removing cord from
pump, verify that power is turned off
on unit or pump will be damaged!
Note: Meter display may still show
watts even if one leg of power to the
pump (110V) is not functioning. This
can result in LT1 faults in heating and
high pressure faults in cooling.
A-O
A-N
Green
White
Black
Check 208-240v here
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