CLIVET WiSAN-YME 1 S 8.1 Service Manual

109
TROUBLESHOOTING
PP - Hb
Description
• Water side heat exchanger inlet temperature is higher than outlet temperature in heating mode.
• The unit shuts down.
• The error code is displayed on the main PCB and user interface.
• Hb indicates that PP has been displayed 3 times.
Possible causes
• Temperature sensor not connected properly or has malfunctioned.
• 4-way valve is blocked or damaged.
• Main PCB is damaged.

CLIVET WiSAN-YME 1 S 8.1 Specifications

General

Brand	CLIVET
Model	WiSAN-YME 1 S 8.1
Category	Heat Pump
Language	English