Rheem 325 II Series Service Instructions Manual page 45

Fault Finding: Chart 11.8
11.8
Red LED: 8 flashes
Fault 8
Water Flow Fault
Is the heat exchanger water outlet
sensor working?
TEST 1
YES
Fault Finding: Chart 11.9
11.9
Red LED: 9 flashes
Fault 9
Refrigeration System Fault
All Heating Disabled
Is the compressor sensor
working?
TEST 1
YES
Is the evaporator sensor working?
TEST 1
YES
Is the evaporator sensor and clip
inserted firmly into the fins of the
evaporator coil?
YES
Reset the heat pump using the reset
button, and use the proxy sensor or
draw off water to initiate a call for
heating.
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
This document is stored and maintained electronically by
NO NO
NOTES
1. The reset button will reset Fault 9, reset the Fault 9 counter and clear the stored
Fault Code from the controller memory.
2. Fault 9 will not disable all heating unless it has occurred 3 consecutive times.
3. If Fault 9 has occurred, the refrigerant high pressure switch may also have tripped.
NO NO Replace the sensor.
NO Replace the sensor.
Secure the evaporator sensor and clip
NO firmly into the fins of the evaporator
coil.
Does the compressor operate
when the green LED
is showing 2 flashes?
NO
Reset Fault 9 using the reset button.
YES
Service. All printed copies are deemed uncontrolled.
Replace the sensor.
11.10
9
11.11
45