Gree Versati II Series User Manual

60
Air to Water Heat Pump
Service Manual- Versati II Series
MAINTENANCE
UNITS MAINTENANCE
1 ERROR CODE LIST
1) Complete Unit Code
Code Indication
Error Name
Source of Error Signal
Control Description
F4 Ambient temperature sensor error
●
The plug on temperature sensor is
not correctly connected to the socket on
mainboard.
●
The resistance of temperature sensor
is not correct.
It will be automatically cleared after the
failure is removed.
F6 Condenser temperature sensor error
●
The plug on temperature sensor is
not correctly connected to the socket on
mainboard.
●
The resistance of temperature sensor
is not correct.
It will be automatically cleared after the
failure is removed.
F7 Discharge temperature sensor error
●
The plug on temperature sensor is
not correctly connected to the socket on
mainboard.
●
The resistance of temperature sensor
is not correct.
It will be automatically cleared after the
failure is removed.
F5
Suction temperature sensor error
●
The plug on temperature sensor is
not correctly connected to the socket on
mainboard.
●
The resistance of temperature sensor
is not correct.
It will be automatically cleared after the
failure is removed.
EF Outdoor fan error
●
Mainboard of outdoor unit is damaged.
●
The wire connecting the wiring
terminals of the mainboard breaks.
If it occurs for 3 times during one hour,
it is cleared by de-energization. If it
occurs for less than 3 times, it will be
automatically cleared.
E5
Overload protection of compressor
or driver error
●
It is the compressor overload switch
error or the compressor drive protection,
and please see the indicating lamp on the
main board of the outdoor unit or the 88
nixie tube for the protection code.
Drive failure; it will be automatically
cleared after 1 min.
E1 High pressure protection
●
Comp High-pressure switch is broken
or the wiring is loose.
●
The water in the tank is not enough.
●
The installation of tank temp sensor is
not correct.
●
The gas valve and liquid valve are not
fully open.
●
The electric expansion valve can not
work normally.
De-energize the unit and then, energize it
again. If the malfunction is removed, the
code will be cleared.
E3 Low pressure protection
●
Comp Low-pressure switch is broken
or the wiring is loose.
●
The system has leaked.
●
The fans stop running or reverse.
If it occurs for 2 times during 40 minutes,
it is cleared by de-energization or turnning
off. If it occurs for less than 2 times, it will
be automatically cleared.
E4 High discharge protection
●
The resistance of temperature sensor
is not correct.
●
The electric expansion valve is
blocked.
●
The system has leaked.
●
Mainboard of outdoor unit is damaged.
If it occurs for 3 times during one hour,
it is cleared by de-energization. If it
occurs for less than 3 times, it will be
automatically cleared.

Gree Versati II Series Specifications

General

Brand	Gree
Model	Versati II Series
Category	Heat Pump
Language	English