Toshiba RUAGP Series Original Owner's Manual page 82

0 Error code causes and solutions. – part 1
Error code
Description
(Hexadecimal)
00 Normal
03 Open-phase failure
04 Abnormal output volt
05
Overcurrent for pump
06
Overvoltage for pump
07
Overload for pump
08 Overheating for pump
0A
Low voltage for pump
0C Low voltage for pump
0D
Missing phase output
0E
Other abnormalities
0F
Communication err (P)
10 UC communication err
12 Internal comm error
1A HumanIF comm error
1B IO board comm error
20 Thermistor err EWT
21 Thermistor err LWT
22 Thermistor err MWT
2E
RH sensor error
2F Thermistor err OAT
Open circuit condition or loose connection in power
supply wiring.
PWM board error
EEV board error or blown fuse.
Pump burnout and insulation deterioration
Contact and grounding error due to power line
damage
(Note 1)
Load fluctuations increased beyond tolerance.
Incorrect inverter settings.
Misoperation due to noise
Power supply voltage increased beyond specified
limit.
Surge voltage is mixed in the input voltage.
(Note 1)
Pump wiring incorrectly earthed.
Incorrect inverter settings.
Misoperation due to noise
Large load
(Note 1)
Incorrect inverter settings.
Large load
(Note 1)
Cooling fan error (pump inverter)
Large load
(Note 1)
Incorrect inverter settings.
Open circuit condition or loose connection in power
supply wiring.
Power supply voltage is too low.
(Note 1)
A power outage occurred
Inverter internal circuit deterioration
Insufficient power transformer capacity
Open circuit condition or loose connection in output
wiring.
(Note 1)
Disconnection of pump winding
Inverter output transistor error
(Note 1)
(Check the LED operator display on the inverter.)
Open circuit condition or loose connection in
communication line wiring.
(Note 1)
Inverter communication function error
CPU board communication port error
Open circuit condition or loose connection in
communication line wiring.
CPU board communication port error
Module controller error
Open circuit condition or loose connection in
communication line wiring.
CPU board communication port error
EEV board error
Control transformer error
Blown fuse
Circuit breaker has tripped
Open circuit condition or loose connection in
communication line wiring.
Board communication port eror
Open circuit in wiring
Same as "Human IF communication error"
Open circuit condition or loose connection in wiring. Repair wiring.
Thermistor error
Same as "Thermistor problem (chilled (warm)
water inlet temperature)"
Same as "Thermistor problem (chilled (warm)
water inlet temperature)"
Open circuit condition or loose connection in wiring. Repair wiring.
(Note 3)
Relative humidity sensor fault
Same as "Thermistor problem (chilled (warm)
water inlet temperature)"
Cause
-
Repair power wiring.
Replace PWM board.
Replace EEV board.
Replace pump.
Replace power line.
Reduce fluctuations
Review inverter setting.
Take noise measure for control circuit, main
circuit, and grounding.
Lower the power supply voltage.
Eliminate surge voltage.
Remove the grounding error.
Review inverter setting.
Take noise measure for control circuit, main
circuit, and grounding.
Reduce the load.
Review inverter setting.
Reduce the load.
Replace cooling fan.
Reduce the load.
Review inverter setting.
Repair power wiring.
Raise the power supply voltage.
Repair the power supply
Replace inverter.
Review power transformer capacity.
Repair output wiring.
Replace pump.
Replace inverter.
Repair communication line.
Replace inverter.
Replace CPU board.
Repair communication line.
Replace CPU board.
Replace module controller.
Repair communication line.
Replace CPU board.
Replace EEV board.
Replace power board.
Rectify fault and replace 16A fuse.
Rectify fault and switch breaker back on.
Repair communication line.
Replace board.
Repair wiring.
Same as "Human IF communication error"
Replace thermistor.
Same as "Thermistor err EWT"
Same as "Thermistor err EWT"
Replace relative humidity sensor.
Same as "Thermistor err EWT"
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Required action
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