Midea MDV-V80W/DN1 Technical Manual

MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF
Troubleshooting 89
7.9 P1: High pressure protection (for all models)
High pressure protection
Whether the wiring is correct.
Whether the wire body is broken.
YES
NO
Connect again.
Short-circuit high pressure switch. Check whether the
system can operate normally.
NO
Replace the high pressure
switch.
YES
Check whether the cooling system operates normally.
Replace the main PCB.
NO
Whether high pressure of the system is too high.
YES
Stop the system.
NO
Whether side air duct of outdoor unit meets the standard.
NO
Rectify the air duct
YES
Whether the heat exchanger needs cleaning.
YES
Clean it.
NO
Whether the pipeline is blocked.
YES
Rectify the pipeline.
Whether the throttle part is stuck, stocked or works
abnormally.
YES
Change throttle parts to
clean the blockages.
LED displays P1
NO
YES
YES

Midea MDV-V80W/DN1 Specifications

General

Brand	Midea
Model	MDV-V80W/DN1
Category	Air Conditioner
Language	English