Mitsubishi Electric PUHY-RP200 Service Handbook page 174

[ IX Troubleshooting ]
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
HWE10130
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.
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