Table of Contents
Advertisement
Malfunctions
Normally,diagnose troubles according to the trouble diagnosis procedure as described below.(Refer to the check
points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)
No.
Troubleshooting procedure
1
Confirmation
2
Judgement by Flashing LED of Indoor/Outdoor Unit
3
How to Check simply the main part
NOTE:
A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the power
supply is turned off,charge(charging voltage DC280V to 380V)remains and discharging takes a lot of time.. After
turning off the power source,if touching the charging section before discharging, an electrical shock may be
caused. Discharge the electrolytic capacitor completely by using soldering iron,etc.
<Discharging method>
(1) remove the inverter cover(Outdoor Unit)
(2)
As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the soldering iron to voltage
between + - terminals of the electrolytic capacitor (test3 "D" and "E" point) on PC Board for 30s, and then
peformedischarging.
Hide quick links:
Advertisement
Table of Contents
