Huawei FusionModule800 Maintenance Guide

FusionModule800 Smart Small Data Center
Maintenance Guide
4 Troubleshooting
Issue 02 (2016-11-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
22

You are not advised to maintain or replace outdoor units in rainy days. If unavoidable, take
protective measures to prevent water from entering the outdoor unit.

When opening the electric control box cover, clear water from the cover.

Certain circuits in the air conditioner have lethal voltages. Only professional technicians
are allowed to perform maintenance.

Exercise caution during troubleshooting with power on.

If jumpers are used for troubleshooting, always remove them after troubleshooting.
Connected jumpers may affect control functions and damage equipment.
Table 4-2 Troubleshooting
Cat
ego
ry
Sympt
om
Possible Cause
Measure
Ind
oor
unit
The
indoor
unit
fails to
start.
The indoor fan is
damaged.
Replace the indoor fan by following
instructions in 5.3.1.2 Replacing an Indoor
Fan.
The connection terminals
for the fans are not
securely connected.
Secure the connection terminals.
The
heating
function
fails.
The electric heater
temperature switch is
protected.

Check the temperature switch. If it is
protected due to high temperature, it can
automatically recover after the
temperature drops.

If the protection fuse has blown, replace
the temperature switch.
The electric heater
contactor is not closed.
Check the electric heater contactor.
The electric heater burns
out.
Disconnect the power supply and check
whether the heater is damaged by measuring
its resistance with an ohmmeter.
The
humidifi
cation
function
fails.
The water inlet solenoid
valve fails.
Replace the water inlet solenoid valve.
The humidifier pump is
faulty.
Replace the humidifier pump by following
instructions in 5.3.1.4 Replacing a
Humidifier Pump.

Huawei FusionModule800 Specifications

General

Brand	Huawei
Model	FusionModule800
Category	Storage
Language	English