Rheem 70103 - Fault Finding Tests; Fault Finding Tests 1 - 3А

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TM063 701, 702 & 703 Series Boiling Water Unit Service Instructions
Revision D: Feb 2017
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Fault Finding Tests
Fault Finding Tests 1 – 3A
Test 1
Test 2A (3 – 15L models)
Ensure power point is switched on and using a
multimeter on the AC voltage scale, measure
between the 3 pin sockets on the power point.
The following results should be obtained:
Active to Neutral – 230 - 240 Volts AC.
Active to Earth – 230 - 240 Volts AC.
Neutral to Earth – 0 Volts.
Using a multimeter on the AC voltage scale,
measure between the Active terminal (brown
wire) and Neutral terminal (blue wire) on the
terminal block. The following results should be
obtained:
Active to Neutral – 230 - 240 Volts AC.
Test 2B (25 – 40L models)
Test 3A (3 – 15L models)
Using a multimeter on the AC voltage scale,
measure between the Active terminal (brown
wire) and the Neutral terminal (blue wire) on
the terminal block. The following results should
be obtained:
Active to Neutral – 230 - 240 Volts AC.
Using a multimeter on the AC voltage scale,
measure between the COM terminal (Active)
on the control board relay and the Neutral
terminal on the control board. The following
results should be obtained:
Relay COM terminal to control board Neutral –
230 - 240 Volts AC.