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GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL

171

(2) Pressure exception

Fault

code

Fault

Possible reasons

Solution

Primary reason

Secondary reason

Tertiary reason

Description

Confirmation

method

Description

Confirmation

method

Description

Confirmation

method

High

pressure

protection

1. The stop

valve of the

ODU is not

fully

opened as

required.

——

Manual

check

Fully

open

the stop

valve.

2. The

system

pipeline is

blocked.

The system's

exhaust

pressure

rises and the

low pressure

is too low

(compared

with the

reference

value).

2.1. The

system gas

pipeline is

blocked.

Touch the

pipe along

the flowing

direction of

refrigerant to

feel the

temperature

difference.

The

difference is

large.

2.1.1 The

block is

caused by

solder.

Cut off the

pipe and

check it.

Replace

and

solder

the

pipe.

2.1.2 The

pipeline is

blocked by

impurities.

Replace

and

solder

the

pipe.

2.2 The

fluid pipe is

blocked.

Touch the

pipe along

the flowing

direction of

refrigerant to

feel the

temperature

difference.

The

difference is

large or part

of the pipe is

frosting.

——

Replace

and

solder

the

pipe.

2.4 The

pipe that

connects

the IDU is

blocked.

Touch the

pipe along

the flowing

direction of

refrigerant to

feel the

temperature

difference.

The

difference is

large or part

of the pipe is

frosting.

2.4.1 The

block is

caused by

solder.

Cut off the

pipe and

check it.

Replace

and

solder

the

pipe.

2.4.2 The

pipeline is

blocked by

impurities.

Replace

and

solder

the

pipe.

Brand	Gree
Model	GMV-120WM/B-F
Category	Inverter
Language	English

Gree GMV-120WM/B-F Service Manual

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