Fault Code 73

Fault: System No. 2 Actuation of high pressure switch (HPS)
Dirty heat exchanger
Shortage of water volume
Clogged refrigerant piping
Defective connector contact
Defective HPS
 

For Daikin split and multi-split air conditioning systems included wall-mounted, duct-connected, floor-standing, multi-flow, stylish, european, ururu sarara & cassette-type units.
If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking for any problems with insulation of equipment.
Resetting breakers without a check of insulation may cause damage to equipment.