Keypad Functions - Trane TCONT402AN32DA Owner's Manual

Keypad
MODE
Functions
Mode
Page - 4
Pub. No. 22-5209-04
Table 2
Symptom
Heating will not come on.
Cooling will not come on.
Cool ON or Heat ON is displayed,
but no warm or cool air is coming
from the registers.
Control does not respond to keypad
presses.
Fan does not operate properly in
heat or cool mode.
Fan runs all the time.
Cooling cycle too fast or too slow.
(Narrow or wide temperature swing).
Heating cycle too fast or too slow.
(Narrow or wide temperature swing).
Page - 21
Pub. No. 22-5209-04
- Pressing this key changes the system mode to Heat, Cool, Automatic or Off.
Mode
Troubleshooting (Continued)
Possible Cause
1. System Mode not set to Heat.
2. Minimum off time delay being enforced.
3. Loose connection to control or system.
4. Heating system requires service or control requires replacement.
1. System Mode not set to Cool.
2. Minimum off time delay being enforced
3. Loose connection to control or system.
4. Cooling system requires service or control requires replacement.
1. The heating equipment turns on the fan when the furnace has
warmed up to a setpoint.
2. Heating or cooling equipment is not operating.
1. "Keypad locked" is displayed on LCD.
2. Keypad failure.
1. Incorrect wiring.
2. Heating or cooling equipment inoperative.
1. Fan mode set to ON.
2. Shorted control wiring.
The location of the control and/or the size of the cooling system
may be influencing the cycle rate.
The location of the control and/or the size of the heating system
may be influencing the cycle rate
A border will appear around the mode on the display
to show the system mode you've selected.
Action
1. Set Mode to heat and raise the setpoint above room temperature.
2. If heating does not come on within 5 minutes, Check Heating.
3. Check - Repair connections.
4. Repair system / Replace control.
1. Set Mode to cool and lower the setpoint below room temperature.
2. If cooling does not come on within 15 minutes, contact servicer.
3. Repair connections.
4. Repair system / Replace control.
1. Wait one minute after Heat ON is displayed and then check the
registers.
2. Check Heating and Cooling system.
1. Unlock keypad - press Up+Down arrow together until "Keypad
locked" appears.
2. Replace Control.
1. Correct wiring.
2. Repair system.
1. Set fan mode to AUTO.
2. Check / Repair wiring.
Verify cycle rate adjustment Step 20 & 22.
Verify cycle rate adjustment Step 24, 26, 28, 30 & 32