Manitou MHT 10180 LT-E3, Operator'S Manual

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20 - AIR CONDITIONING CONTROLS (OPTION AIR CONDITIONING)
The air conditioning only comes on when the forklift truck has been started up. When using your air
conditioning, you must work with the doors and windows closed.
In winter: So as to ensure correct operation and complete efficiency of the air conditioning unit, start
up the compressor once a week, if only for a short spell, so as to lubricate the internal seals.
In cold weather: Warm the I.C. engine before switching on the compressor, so as to allow the coolant
that has collected in the liquid state at the lowest point of the compressor circuit to turn into gas under
the effect of the heat given off by the I.C. engine, as the compressor is liable to be damaged by coolant in
the liquid state.
If your air conditioning does not seem to be working properly, have it examined by your dealer (see: 3 -
MAINTENANCE: F - EVERY 2000 HOURS OF SERVICE). Never try to repair any possible problems by yourself.
21
LEGEND OF FUNCTIONS
1 – Internal temperature reduction 8 – Fan speed reduction command
2 – Internal temperature increase 9 – Internal air temperature sensor
3 – Preset temperature indicator 10 - °C / °F conversion and vice versa
4 – Fan 1st speed indicator 11 – External temperature reading command
5 – Fan 2nd speed indicator 12 – Recirculation command
6 – Fan 3rd speed indicator 13 - Compressor exclusion
7 – Fan speed increase command 14 – Restore automatic function
ERROR CODES
In case of a fault that affects the automatic regulation, the control unit displays an error code consisting of the letter E
followed by a number which identifies the type of fault according to the following Table:
E 1 external air temperature sensor (E.T.) interrupted.
E 2 external air temperature sensor (E.T.) short circuit.
E 3 cab air temperature sensor (I.T.) interrupted.
E 4 cab air temperature sensor (I.T.) short circuit.
E 5 mixed air temperature sensor (M.T.) interrupted.
E 6 mixed air temperature sensor (M.T.) short circuit.
Since automatic regulation is not possible, the keys for increasing and decreasing the internal temperature are used to
change the position of the mixer, while the fan speed is fixed at the 2nd speed.
When the error is solved, the control unit resumes normal operation only after resetting the + key.