Specifications

TM012 Rheem Electric Water Heaters Service Instructions REV: B

Date of Issue: 03/06

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Component Tests 7 - 9

Test 7

Ensure power is isolated before

conducting test

Using a multimeter on the x1 resistance

scale, measure between terminals 2T

and 4L of the thermostat.

Normal resistance for the heating unit is:

1.2kW: 43-53 ohms 1.5kW: 35-42 ohms

1.8kW: 29-35 ohms 2.4kW: 22-26 ohms

3.0kW: 17-21 ohms 3.6kW: 15-17 ohms

4.8kW: 11-13 ohms 6.0kW: 9-11 ohms

Test 8

Ensure power is isolated before

conducting test

Using a multimeter on the x1 resistance

scale, measure between active and

neutral on the terminal block.

Normal resistance when the thermostat

contacts are closed is:

1.2kW: 43-53 ohms 1.5kW: 35-42 ohms

1.8kW: 29-35 ohms 2.4kW: 22-26 ohms

3.0kW: 17-21 ohms 3.6kW: 15-17 ohms

4.8kW: 11-13 ohms 6.0kW: 9-11 ohms

Test 9

Live equipment Personal

Protective Equipment should be

worn when conducting this test.

Using a multimeter on the AC voltage

scale, measure between each active and

the neutral on the terminal block.

Normal voltage is 240 volts