Rheem 310 Series Service Instructions Manual page 33

Fault Finding – Chart 4
4
Boost or limp mode will be indicated by any
of the following LED conditions:
Red solid or flashing.
Red & Green flashing simultaneously.
No LED indication.
For other LED indication refer to notes
below.
Notes:
Flashing frequency: Different combinations of flashing
LED's (one Red & one Green) will indicate the status of the
heat pump. Each flash in a series will last for 0.5 seconds
and is separated by 0.5 seconds between flashes. Each
series of flashes is separated by 2 seconds.
Other LED indication: If no fault is present the Green LED
will flash to indicate the following:
Green solid - Heat pump operating in sequence 0 (standby)
Green 1 flash - Compressor delay start (T3 > 60ºC in seq 0)
Green 2 flash - Heat pump operating in sequence 2
Green 3 flash - Heat pump operating in sequence 3
Green 4 flash - Heat pump operating in sequence 4
For more information on LED indication refer to pages 12 and13.
TM025 Rheem Heat Pump Service Instructions REV: B
Date of Issue: 02/08/07
This document is stored and maintained electronically by
System in boost or limp mode - Software version 4.0 or higher
What is the
status of the
control boards
LEDs?
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
Red solid
Red 1 flash
Red 2 flash
Red 3 flash
Red 4 flash
Red 5 flash
Red 6 flash
Red 7 flash
Red & Green 1 flash
Red & Green 2 flash
Red & Green 3 flash
Red & Green 4 flash
Red & Green 5 flash
No LED indication
32
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14