Rheem 310 Series Service Instructions Manual page 23

Component Tests 7, 8 & 9
240
Warning – 'Live' equipment wear
Personal Protective Equipment
when conducting this test.
Using a multimeter on the AC voltage
scale, measure between the white wire on
the heat pump
connection plug and the top terminal of the
heat pump module
(Neutral).
Normal voltage is 240 volts.
Warning – 'Live' equipment wear Personal Protective Equipment when
conducting this test.
Using a multimeter on the DC voltage scale, measure between the two wires on the
control board relay plug.
Normal voltage is 6 Volts DC.
TM025 Rheem Heat Pump Service Instructions REV: B
Date of Issue: 02/08/07
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Tests 7
module electrical
terminal
Warning
isolated before conducting this
test.
Disconnect the element wires from the
thermostat and terminal block, and using a
multimeter on the ohms scale, measure
between the two element wires. The
block following results should be obtained:
2.4kW element: 22 – 26 ohms.
3.6kW element: 15 – 17 ohms.
Test 9
22
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
Test 8
- Ensure power is