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c l i m a t e m a s t e r. c o m
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
Tr a n q u i l i t y
®
2 2 ( T Y ) S e r i e s
R e v. : 1 2 / 1 7 / 1 4
Performance Troubleshooting (continued)
High Humidity
X
Too high of air flow
Check fan motor speed selection and airflow chart
X
Unit oversized
Recheck loads and sizing check sensible clg load and
heat pump capacity
Only Compressor Runs
X
X
Thermostat wiring
Check G wiring at heat pump. Jumper G and R for fan
operation.
X
X
Fan motor relay
Jumper G and R for fan operation. Check for Line voltage
across blower relay contacts.
Check fan power enable relay operation (if present)
X
X
Fan motor
Check for line voltage at motor. Check capacitor
X
X
Thermostat wiring
Check thermostat wiring at or DXM2. Put in Test Mode
and then jumper Y1 and W1 to R to give call for fan,
compressor and electric heat.
Unit Doesn't Operate in
Cooling
X
Reversing Valve
Set for cooling demand and check 24VAC on RV coil.
If RV is stuck, run high pressure up by reducing water flow
and while operating engage and disengage RV coil voltage
to push valve.
X
Thermostat setup
X
Thermostat wiring
Check O wiring at heat pump. DXM2 requires call for
compressor to get RV coil “Click.”
Modulating Valve
Troubleshooting
X
Improper output setting
Verify the AO-2 jumper is in the 0-10V position
No valve operation
Check voltage to the valve
X
No valve output signal
Check DC voltage between AO2 and GND. Should be O
when valve is off and between 3.3v and 10v when valve
is on.
Replace valve if voltage and control signals are present at
the valve and it does not operate
For DXM2 check for “O” RV setup not “B”.
High Humidity
Only Compressor Runs
Unit Doesn't Operate in
Cooling
Modulating Valve
Troubleshooting
Symptom
Htg Clg Possible Cause
Solution
Solution
Possible Cause
Htg Clg
Symptom