Bosch ACS 763 Air Conditioner Service Maintenance

Change filter

Filter Maintenance

The filter is designed to trap acid and particulates, and to remove water from refrigerant. To meet this mandate, the filter must be replaced after (SEE TABLE) of refrigerant has been filtered.

The unit gives a warning when (SEE TABLE) of the filter capacity has been used; the unit locks down when the (SEE TABLE) filter capacity has been reached and will no longer function.

Check Remaining Filter Capacity

Select Filter Maintenance from the Maintenance Menu or when the machine prompts. The machine displays:

Replace the Filter

NOTE: If SERIAL NUMBER WRONG is displayed, the serial number has been incorrectly entered or the filter has already been used in this machine.

The machine clears the existing filter and displays:

CAUTION: Use only authentic Bosch filters in this machine. All performance tests and claims are based on using this specific filter

Figure 1-4. Filter Location

Scales Reset

This procedure should be carried out regularly, as the deviation from the zero point of the oil/dye scales is corrected in the process.

NOTE: To remove the “PAG”, “POE” and “UV Dye” bottles, you must pull the lever on the colored covers of the bottles slightly to unlock and pull them outward. Instead to remove the oil drain bottle it is enought pulling it straight outwards