Error Code [5111, 5113, 5132, 5135]; Error Code [5120]; Error Code [5201] - Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-4

Error Code [5111, 5113, 5132, 5135]

1. Error code definition
5111 - 5113
Temperature sensor fault (Hydro unit) (TH11, TH13)
5132 - 5135
Temperature sensor fault (Hydro unit) (TH32, TH35)
2. Error definition and error detection method
If a shorted (high temperature intake) or open (low temperature intake) thermistor (TH11, TH13, TH32, TH35) is detected
during operation, the unit comes to an abnormal stop, and an error code "5111," "5113," "5132," "5135" appears on the display.
Detection of a short- or open-circuit as described above is suspended during the defrost cycle and for 3 minutes after the
operation mode is changed.
3. Cause, check method and remedy
Cause
(1) Thermistor failure
(2) Pinched lead wire
(3) Torn wire coating
(4) A pin on the male connector is missing or
contact failure
(5) Disconnected wire
<Reference>
TH11 110°C [230°F] and above (0.4kΩ)
TH13 110°C [230°F] and above (0.4kΩ)
TH32 110°C [230°F] and above (0.4kΩ)
TH35 110°C [230°F] and above (0.4kΩ)
7-7-5

Error Code [5120]

1. Error code definition
DCL temperature sensor circuit fault (Detail code 01)(outdoor unit)
2. Error definition and error detection method
When an open phase or a short circuit of the temperature sensor is detected immediately before inverter startup or during
operation (applicable to INV37YC only)
3. Cause, check method and remedy
INV37YC
(1) Contact failure
(2) DCL temperature sensor
(3) INV board failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
BS_07_E
Short detection
Cause
Check method and remedy
Check thermistor resistance.
Check for pinched lead wire.
Check for wire coating.
Check connector.
Check for wire.
Open detection
-40°C [-40°F] and below (130kΩ)
-40°C [-40°F] and below (130kΩ)
-40°C [-40°F] and below (130kΩ)
-40°C [-40°F] and below (130kΩ)
Check method and remedy
Check the connector (CNTH) on the inverter board for proper
connection.
Disconnect the connector (CNTH), check the resistance val-
ue of the DCL temperature sensor.
Replace the DCL if the resistance is as follows: 0.5 kΩ or be-
low (short-circuit) or 1963 kΩ or above (open-circuit).
If the problem persists after restart operation, replace the in-
verter board.
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