Cxm Process Flow Chart - Heat Controller HP Series Installation, Operation & Maintenance Manual

Installation, Operation & Maintenance
� WARNING! �
WARNING! HAZARDOUS VOLTAGE!
DISCONNECT ALL ELECTRIC POWER
INCLUDING REMOTE DISCONNECTS
BEFORE SERVICING.
Failure to disconnect power before servicing
can cause severe personal injury or death.
See " Unit
Yes
short
cycles"
Yes
See " Only
Fan Runs"
See " Only
Yes
Comp
Runs"
See " Does
No
not Operate
in Clg"

CXM PROCESS FLOW CHART

CXM Functional
Start
Troubleshooting Chart
Did Unit
No
Attempt to
Start?
Yes
Did Unit
Yes
Lockout at
Start-up?
No
Unit Short
Cycles?
No
Only Fan
Runs?
No
Only
Compressor
Runs?
No
Did unit lockout
Yes
after a period of
operation?
No
Does unit
operate in
cooling?
Yes
Unit is OK!
'See Performance
Troubleshooting' for
further help
HP SerieS
Check Main
power (see power
problems)
Check fault LED code
on control board
See
See HP
LP/LOC
Fault
Fault
See FP2
Fault Condensate
45
See FP1
Fault
See See Over/
Under
Fault Voltage
Heat Controller, Inc.
No fault
shown
Replace
CXM
39