TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C
Date of Issue: 5/11/05
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16
Component Tests 3 - 4
Test 3
Ensure power is isolated before conducting these tests
Disconnect the active wire to the fan
motor from terminal 5 of the terminal
strip and using a multimeter set on
the x1 resistance scale, measure
between the fan motor active wire
and neutral on the terminal strip.
Normal resistance is 47.2 ohms
Test 3A
Ensure power is isolated before conducting these tests
Compressor overload
Disconnect the wiring to the
compressor overload
Using a multimeter set on the x1
resistance scale, measure across the
terminals.
Normal resistance should be less
than 1 ohm
Test 4
Ensure power is isolated before conducting this test
Disconnect the active (red) wire to
the compressor from terminal 5 of the
terminal strip and using a multimeter
set on the x1 resistance scale,
measure between the red wire and
blue wire (run winding) and between
the red wire and black wire (start
winding).
Normal resistance for the run winding
is 3.33 ohms.
Normal resistance for the start
winding is 6.01 ohms when the
compressor is cold.