High Pressure Switch 1 Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 41
OUTDOOR UNIT Error Method:

High Pressure Switch 1 Error

Detective Actuators:
High pressure switch 1
Forecast of Cause :
1. High pressure switch 1 connector disconnection, open
2. High pressure switch 1 characteristics defective
3. Main PCB defective
Check Point 1 : Check the high pressure switch 1 connection state
Connector and wiring connection state check
Cable open check
OK
Check Point 2 : Check the high pressure switch 1 characteristics
Switch characteristics check
* For the characteristics of high pressure switch 1, refer to the "Service Parts Information 21".
OK
Check Point 3 : Replace Main PCB
Change Main PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
Indicate or Display:
Outdoor Unit : E. 86. 4
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Error Code : 86
Detective details:
When the power was turned on, "high pressure switch 1: open" was detected.
04-49