ClimateMaster Tranquility TY Series - Page 47

climatemaster.com
47
Tranquility
®
22
(
TY
)
Series
Rev.: July 8, 2021
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Functional Troubleshooting, Cont’d.
Low Air Coil Pressure
Fault
(ClimaDry) Code 11
X
Reduced or no air ow in cooling or
ClimaDry
Check for dirty air lter and clean or replace
Check fan motor operation and airow restrictions
Too high of external static - check static vs blower table
Air temperature out of range
Too much cold vent air - bring entering air temp within design
parameters
Bad pressure switch Check switch continuity and operation - replace
Low Air Coil Temperature
Fault -
(ClimaDry) Code 12
X
Reduced airow in cooling, ClimaDry, or
constant fan
Check for dirty air lter and clean or replace
Check fan motor operation and airow restrictions
Too high of external static - check static vs blower table
Air temperature out of range
Too much cold vent air - bring entering air temp within design
parameters
Bad thermistor Check temp and impedance correlation per chart
ESD - ERV Fault (DXM
Only)
Green Status LED Code 3
X X ERV unit has fault (Rooftop units only) Troubleshoot ERV unit fault
No Fault Code Shown X X
No compressor operation See ‘Only Fan Operates’
Compressor overload Check and replace if necessary
Control board Reset power and check operation
Unit Short Cycles X X
Dirty air lter Check and clean air lter
Unit in ‘Test Mode’ Reset power or wait 20 minutes for auto exit
Unit selection Unit may be oversized for space - check sizing for actual load of space
Compressor overload Check and replace if necessary
Only Fan Runs X X
Thermostat position Ensure thermostat set for heating or cooling operation
Unit locked out Check for lockout codes - reset power
Compressor overload Check compressor overload - replace if necessary
Thermostat wiring
Check thermostat wiring at DXM2 - put in Test Mode and jumper Y1 and
R to give call for compressor
Fault Htg Clg Possible Cause Solution