Rheem 55027500 Service Instructions Manual page 16

Component Tests 1 – 2A
Warning – "Live" equipment Personal Protective Equipment should be worn when
Ensure power is isolated before conducting this test
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 1
conducting this test.
Using a multimeter set on the AC
voltage scale, measure between
active and neutral on the terminal
block.
Normal voltage is 240 volts
Test 2
Disconnect
thermostat and using a multimeter
set on the x1 resistance scale,
measure
terminals.
Normal resistance should be less
than 1 ohm
Test 2A
Disconnect the wire from the terminal
3L of the thermostat and using a
multimeter set on the x1 resistance
scale, measure across terminals 3L
and 4L.
Normal resistance should be less
than 1 ohm.
15
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
550275 & 551275
one wire from
across the thermostat
551275/A
the