Dxm2 Troubleshooting; Dxm2 Process Flow Chart - Carrier 50YFV Installation, Operation And Maintenance Instructions

R e s i d e n t i a l D i g i t a l P a c k a g e d U n i t s G T- P B S e r i e s - 6 0 H z P u r o n
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.
Start
Did Unit
Attempt to
Start?
Did Unit
Lockout at
Start-up?
See " Unit
Yes
Unit Short
short
Cycles?
cycles"
Yes
See " Only
Only Fan
Fan Runs"
Runs?
Only
See " Only
Yes
Compressor
Comp
Runs?
Runs"
Did unit lockout
after a period of
operation?
Does unit
See " Does
No
operate in
not Operate
cooling?
in Clg"
Unit is OK!
'See Performance
Troubleshooting' for
further help
DXM2 Functional
Troubleshooting Flow Chart
No
power (see power
Yes
Yes
No
No
No
No
Yes
No
Yes

DXM2 Process Flow Chart

Check Main
problems)
Check fault code on communicating
thermostat (ATC32) or Configuration
and Diagnostics Tool (ACD01)
See fault codes in table
on following page
®
R e v : 4 A p r i l , 1 4
No fault
shown
Replace
DXM2
53