Rheem 325 II Series, Service Instructions Manual

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This document is stored and maintained electronically by Service. All printed copies are deemed uncontrolled.
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
FAULT FINDING
When using the fault finding flow charts, it is essential to ALWAYS start from the
beginning
– the General Fault Diagnosis chart. Starting fault diagnosis from any
other chart is not correct usage and may result in misdiagnosis.
When measuring the resistance of a part, turn OFF the electric power and be
sure to disconnect the part completely before measuring (from connector or
terminal). Resistance checks are performed on the part while it is disconnected
from the controller.
“Live” testing to be conducted. Personal Protective Clothing (PPE) shall be
worn to reduce the risk of electric shock. Refer to Rheem Safety Procedure
on electrical testing.
CAUTION: Hot surface. Personal Protective Clothing (PPE) shall be worn to
reduce the risk of scalding. Be careful to avoid injury on sharp edges.
Fault Finding Flow Chart Table
Fault
Chart
Number
Page
General Fault Diagnosis: ALWAYS START HERE - 32
No Hot Water
1 33
2 33
3 33
System in Element Mode 4 34
Insufficient Hot Water
4 34
5 35
6 36
Leaking Water Heater 7 37
Noisy Water Heater 8 38
Refrigeration System 9 39
Electrical Insulation Testing 10 40
LED Fault Codes
11
Inc. 11.1
– 11.11
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