E01 Remote Controller Receive Failure - Panasonic 2WAY Multi Technical & Service Manual

E01 Remote Controller Receive Failure

Error detection method
1) When the indoor unit is connected
An error is determined when no incoming communication is received for 3 minutes.
• When 9 or more indoor units are wired into the remote controller group.
• When inspection (inspection pin) or TEST (test pin) on the indoor control board is short-circuited.
• When the non-volatile memory (EEPROM) is not inserted or has failed upon turning power ON.
• Indoor control board failure
2) When a water heat exchanger unit is connected
An error may be assumed when no communication addressed to you is received for three minutes.
• When power is not being supplied to the water heat exchanger unit.
• When the parallel array address has not been set or is incorrectly set.
• When the terminal resistor has not been set or is incorrectly set.
• When the remote control wire is severed, short-circuited, has a ground fault or the wrong polarity.
• When a source of noise is located nearby.
• When the water heat exchanger unit's control board or peripheral equipment is defective.
Troubleshooting
1) When the indoor unit is connected
1
1-1 Is auto-addressing complete?
Auto-address
Has auto-addressing failed (warning displayed on outdoor
1-2
unit)?
1-3 Perform pre-check before auto-addressing. (See "5. Reference Document")
2
2-1 Is this indoor unit group-controlled?
Group control
wiring
Are any indoor units wired into the remote controller group
2-2
turned OFF?
Are 9 or more indoor units connected to one remote
2-3
controller group wiring?
Was the remote controller group wiring modifi ed after
auto-addressing was complete? Or, were group settings
2-4
changed using the remote controller properties setting
mode?
2-5 No main unit present in remote controller group wiring → Repeat auto-addressing.
3
Is the inspection pin (CN062/CN071) or TEST pin (CN064)
3-1
Indoor control
on the indoor control board short-circuited?
board
Is an option board (CN060) or wireless remote controller
3-2
(CN041) connected to the indoor control board?
Does E01 disappear several minutes after disconnecting
said connector on the indoor control board? (When
3-3 controlling with two remote controllers and the wireless
remote controller is the main, set the other remote
controller as the main).
Replace the removed option board or wireless remote controller operating unit, wiring and
3-4
all.
3-5 Is the LED (D002) blinking on the indoor control board?
Nonvolatile memory (EEPROM) on the outdoor main unit is not inserted, is incorrectly
3-6 inserted or is defective → Correct or replace nonvolatile memory and program it in the
remote controller properties setting mode.
Short-circuit or misrouting in indoor unit remote controller
3-7
wiring?
IV–30
Yes 1-2
No 1-3
OK 1-3
NG 2-1
Yes 2-2
No 3-1
Yes Turn power ON
No 2-3
Yes Repair wiring
No 2-4
Yes 2-5
No 3-1
Yes Eliminate short-circuit
No 3-2
Yes 3-3
No 3-5
Yes 3-4
No 3-5
Yes 3-6
No 3-7
Yes Repair wiring
Replace indoor control
No
board