TM090 12-26 Series II CFGWH Service Instructions
REV AB
– Issued February 2019
This document is stored and maintained electronically by Rheem Technical Support. All printed copies
are deemed “uncontrolled”
37
Tests 15B
– 18
Components will be “Live” when conducting voltage tests, exercise
caution
Test 15B
– Water inlet position switch
Test 16
– Solenoid valves 1 and 3
Reading DC 0-1 Volts
– Limiter switch is
ON
Reading DC 4-6 Volts
– Limiter switch is
OFF
Test solenoid 1 between 10 &11
Test solenoid 3 between 7 & 11
Conduct test with water flowing
Measure the voltage with connector I plugged
into PCB. Reading DC 9-15 volts between 11
Black and 7 White
Measure the resistance with connector I
unplugged from the PCB. Reading 14 to 23
Ohms between 11 Black and 10 Blue.
Test 17
– Dip switches
Test 18
– Dip switch 1
Use an insulated tool when operating
the DIP switch or MIN and MAX buttons.
Using an insulated tool, turn DIP switch 1 on
D
Opening the Hot water tap, with MIN
and MAX buttons pressed, will display
Error Code 24 (for aprox10 seconds.)
D
If you turn ON dip switch 1,
maintenance information will be shown
on the LED display
Press
LED Display
LED Display