Rheem 55027500 Service Instructions Manual page 17

Component Tests 3 - 4
Ensure power is isolated before conducting these tests
Ensure power is isolated before conducting these tests
Ensure power is isolated before conducting this test
TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C
Date of Issue: 5/11/05
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Test 3
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
Disconnect
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
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
winding is 6.01 ohms when the
compressor is cold.
16
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
Compressor overload
the wiring
resistance for
to the
the start