Daikin VRV K - 2.25 Outdoor Unit: Malfunction of Oil Temperature Thermistor (R5 T)

Si-95 Troubleshooting
Troubleshooting Inverter K Series 91
2.15 Outdoor Unit: Actuation of High Pressure Switch
Remote Controller
Display
EE
EE
33
33
Supposed Causes ■ Actuation of outdoor unit high pressure switch
■ Defect of outdoor unit PC board (A1P)
■ Instantaneous power failure
Troubleshooting
∗1: Actuation of high pressure switch (HPS)
The outdoor unit PC board’s connector is disconnected.
Is the outdoor unit heat exchanger dirty?
Defect of outdoor fan
Is the refrigerant over-charged?
Operation
is normal when turned on
again by remote
controller.
Replace outdoor unit PC board A1P.
Actuation of high pressure switch ∗1
YES
YES
There was an instantaneous power
failure or a past safety device actuated.
Re-check refrigerant system.
NO
NO
(VF041)
Contact
S1HP (X10A) or S2HP
(X11A) is open.
SI-95.BOOK Page 91 Friday, March 31, 2000 10:59 AM