Outdoor Unit Trouble Diagnostics; Error Contents - Sanyo SAP-CMRV1923GJH Technical & Service Manual

9-2. Outdoor Unit Trouble Diagnostics

If a protective device has activated or there is a sensor failure in the outdoor unit, the 6 error monitor lamps on the
outdoor control circuit board will indicate the nature of the trouble.
E R R
0 1 2 3 4
Outdoor control circuit board

Error contents

5
Compressor discharge temperature sensor
Heat exchanger temperature sensor
Branch tubing A sensor (narrow tubing)
Branch tubing B sensor (narrow tubing)
Branch tubing C sensor (narrow tubing)
Branch tubing D sensor (narrow tubing)
Outdoor air temperature sensor
Branch tubing A sensor (wide tubing)
Branch tubing B sensor (wide tubing)
Branch tubing C sensor (wide tubing)
Branch tubing D sensor (wide tubing)
CT (current) sensor
HIC protective device (current, temperature)
E R R
0 1 2 3 4
28
: ON : OFF
Error contents
5
OTP data failure
Current peak exceeded
Current control failure
Active failure
Compressor discharge temperature high
Zero-cross failure
DC compressor rotation failure
3φ 200 V open phase
Compressor internal thermostat activated
High-pressure switch activated
Miswiring, incorrect tubing connections
Freeze-prevention activated
Reset count exceeded
Error monitor lamps