Geely Diagnosis Flow. Manual part — 90

357

No. 261 Leaking of sunroof (water on internal decoration of roof)

Malfunction Cause

Solution

1) Uneven clearance around
glass of sunroof and opening of
roof

1) Check if one side of the clearance between glass of sunroof and roof is
too big; if so, dismantle left and right decorating bars for sunroof and release
fastening bolt for glass; insert shim to the clearance around glass of sunroof
and roof to even the clearance;

2) Clog-up of sunroof drain

2) Check drain for clog-up; if so, the drain should be cleaned;

Water on
internal
decoration of
roof

3) Dropping-off of sealant at rear
drain

3) Check sealant at rear drain for dropping-off; if so, the rear drain should be
re-installed;

Leaking of sunroof (water in internal decoration
of roof)

One side of the clearance between
glass of sunroof and roof is too big

Adjust the clearance around
glass of sunroof and roof evenly

Clog-up of drain

Clear the drain

Dropping-off of sealant at rear
drain

Re-install rear drain

Unblocked

Even

Too-big

Clog-up

Drooping-off

358

No. 262 Air-conditioner can’t work

Malfunction Cause

Solution

Undercharge of refrigerant

Undercharge of refrigerant results in insufficient refrigerating capacity;

Overdose of refrigerant

Undercharge or overdose of refrigerant results in insufficient refrigerating
capacity;

Air in system

Air in system results in insufficient refrigerating capacity;

Leakage in system

Check and remove leakage in system;

Over-loose belt for
compressor

Over-loose belt for compressor results in over-low rotating speed of
compressor, warm air outlet and abnormal sound; stretch or replace the belt;

Open-circuit of AC pressure
switch

Replace AC pressure switch;

Clog-up of drying filter

Replace AC clog-up of drying filter;

Less amount of cooling air for
condenser

Less amount of cooling air for condenser results in over-pressure at LP and
HP side; check if the rotating speed of fan is normal and if the voltage is low;

The fins of condenser is
blocked by dust

Blocked fins of condenser by dirt results in over-high HP and bad heat
radiating effect; clean the dust on condenser;

Dirt in system

Dirt in system will result in vacuum or very low pressure at LP side, high
pressure at HP side, frost or dew deposited on pipeline near drying reservoir
or heat expansion valve and warm air outlet; if the condition is not improved
after power-off, then it can be determined that the system is clogged up by
dirt. Then the drying reservoir should be replaced and heat expansion valve
should be cleaned;

Moisture in system

After certain working duration, moisture in system will result in obvious lower
and lower pressure at LP side, clog-up of hest expansion valve by ice, frost
deposited on evaporator and warm air outlet; and system will be normal if
power-on again after certain duration of shut-down; but the malfunction of
intermitting cooling will occur repeatedly;

Low rotating speed or failure of
blower

Low rotating speed or failure of blower will result in frost deposited on
evaporator, warm air outlet and insufficient refrigerating capacity; check
blower speed adjusting switch, relay and speed adjusting resistance for
damage and replace it, or replace blower assembly if necessary;

Electromagnetic clutch of
compressor is slipping

Slipping of compressor electromagnetic clutch will result in abnormal running
of compressor and insufficient refrigerating capacity; electromagnetic clutch
can be replaced separately or compressor will be replaced;

Too much refrigerating oil in
system

Too much refrigerating oil in system will result in turbid streaking on sight
glass and insufficient refrigerating capacity; discharge exceed refrigerating
oil;

Air inlet duct of AC is clogged
by other object

Clogging of air inlet duct by other object will decrease air amount and result in
insufficient cooling capacity and increased noise; clear clogging object from
air duct;

Fresh air damper of AC is not
closed tightly

Unclosed fresh air damper of AC will result in higher temperature of air outlet
and insufficient refrigerating capacity; check the cause of unclosed fresh air
damper and treat it;

Air filter screen of evaporator
is blocked by dust or other
object

Blocking of air filter screen of evaporator by dust or other object will result in
decreased air amount and insufficient refrigerating capacity; clean air filter
screen;

The fins of evaporator is
blocked by dirt

Blocking of fins of evaporator by dust will result in decreased air amount and
insufficient refrigerating capacity; clean it by compressed air;

Malfunction of evaporator

Malfunction of evaporator will resulting in failure of AC;

Bad packing of temperature
wrap for heat expansion valve

Bad packing of temperature wrap for heat expansion valve will result in
loosing of heat isolating layer and insufficient refrigerating capacity; pack it
properly again;

Incorrect adjusting of
temperature controller

Incorrect adjusting of temperature controller; replace the temperature
controller;

Air-conditioner
can’t work

Exceed or less opening of Replace expansion valve assembly, pump for vacuum and fill refrigerant;

359

expansion valve

Malfunction of compressor

Malfunction of compressor will resulting in failure of AC;

Short-circuit or break of loop
and harness

Check and repair loop and harness;

Malfunction of engine ECU

Replace engine ECU;

360

Air or moisture in system

Air-conditioner can’t work

Dirt in system

Malfunction of air duct

Undercharge or overdose of
refrigerant

Repair or clear

Check, repair or replace

Check and
repair

Malfunction of evaporator

Too much refrigerating oil or dirt in system

Electromagnetic clutch of compressor is slipping or belt is
loosing

Malfunction of blower

Malfunction of condenser or
evaporator

Malfunction of temperature controller
or temperature wrap

Malfunction of
compressor

Check and repair

Check and repair

Check, repair or
replace

Check, repair or
replace

Check, repair or
replace

Check, repair or
replace

Check, repair or
replace

Check and
repair

Short-circuit or circuit of circuit
and harness

Malfunction of engine ECU

Check and repair loop
and harness;

Replace engine ECU

Normal

Abnormal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal

Abnormal