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

Installation, Operation & Maintenance

CXM Process Flow Chart

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.
Lockout at
See " Unit
Yes
short
cycles"
Yes
See " Only
Fan Runs"
See " Only
Yes
Compressor
Comp
Runs"
Did unit lockout
after a period of
See " Does
No
not Operate
in Clg"
Unit is OK!
'See Performance
Troubleshooting' for
HTV/HTD/HTH SERIES
CXM Functional
Start
Troubleshooting Flow Chart
Did Unit
No
Attempt to
Start?
Yes
Did Unit
Yes
Start-up?
No
Unit Short
Cycles?
No
Only Fan
Runs?
No
Only
Runs?
No
Yes
operation?
No
Does unit
operate in
cooling?
Yes
further help
Check Main
power (see power
problems)
Check fault LED code
on control board
See
See HP
LP/LOC
Fault
Fault
See FP2
Fault Condensate
44
See FP1
Fault
See See Over/
Under
Fault Voltage
Heat Controller, Inc.
No fault
shown
Replace
CXM