Specifications

TM025 Rheem Heat Pump Service Instructions REV: B
Date of Issue: 02/08/07
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
15
General Fault Finding Chart
Fault Diagnosis
No
hot water?
YES
1
Insufficient
hot water?
NO
2
YES
System
in boost or limp
mode?
NO
3
YES
NO
5
YES
6
NO
Leaking
water heater?
Noisy
water heater?
7
YES
NO
Blowing fuse/circuit breaker
Boost or limp mode will be
indicated by any of the following
LED conditions:
Red solid or flashing.
Red & green flashing together.
No LEDs (Limp mode with
Robertshaw thermostat open)
4
HPV 3.1, HPV 3.2 or
no HPV identification
HPV 4.0 or higher
What is the
controller
software
version?
Note: For more information on LED indication refer to pages 12 and 13.