Operational Check

The purpose of the operational check is to confirm that the system is as it should be. The Systems which will be checked are the blower, mode (discharge air), intake air, temperature decrease, temperature increase and A/C switch systems.

CONDITIONS:
Engine running and at normal operating temperature.

PROCEDURE:

1. Check Blower
1.Turn fan control knob to AUTO. Blower should operate at speed of AUTO.
2.Then turn knob to speed 1.
3.Continue checking blower speed until all speeds are checked.

2. Check Discharge Air





1. Turn mode control knob.





2. Confirm that discharge air comes out according to the air distribution table at left.
Refer to "Discharge Air Flow" in "DESCRIPTION".





3. Check Recirculation
1. Press recirculation switch. RECIRCULATION indicator should illuminate.
2. Listen for intake door position change (you should hear sound change slightly).

NOTE: Confirm that the RECIRCULATION switch is canceled in the DEF and D/F mode.





4. Check Temperature Decrease
1. Turn temperature control knob to full cold [18 °C (65 °F)].
2. Check for cold air at discharge air outlets.





5. Check Temperature Increase
1. Turn temperature control knob to full hot [30 °C (85 °F)].
2. Check for hot air at discharge air outlets.





6. Check A/C Switch
Move tan control knob to the desired position (AUTO to 3) and press air conditioner switch to turn ON air conditioner. Indicator light will come on when air conditioner is ON.