Mitsubishi Electric PQHY-P72ZLMU-A Service Handbook page 266

[ IX Troubleshooting ]
1. Error Code
2600
Water leakage
2. Cause, check method and remedy
Check that water does not leak from the pipes in such as the humidifier.
1. Error Code
2601
Water supply cutoff
2. Cause, check method and remedy
(1) The water tank of the humidifier is empty.
(2) The solenoid valve for humidification is OFF.
(3) Disconnected float switch
(4) Poor operation of float switch
(5) Frozen water tank
1. Error Code
2602
Function setting error
2. Cause, check method and remedy
(1) The function selection switch on the LOSS-
NAY unit (SW5-5) is set to ON.
HWE15150
Cause
Cause
Check method and remedy
Check the amount of supply water.
Check for the solenoid valve and for the connection.
Check the connector.
Check the connecting part.
Check for the float switch.
Turn off the power source of the water tank to defrost, and
turn it on again.
Check method and remedy
Set the function selection switch (SW5-5) on the LOSSNAY
unit to OFF.
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