Tr
oubleshooting
Page 101
5.11 High temperature or protection of pressure diagnosis and solution
Description
: The High pressure switch detects a ultra high pressure or the Low pressure switch detects a ultra low
switch, which could damage the system.
Recommended parts to prepare:
• Bad wiring of the pressure switches
• Faulty pressure switches
• Refrigeration system is over load or blocked or lack of refrigerant
Troubleshooting and repair:
H igh tem perature or protection
of pressure
H igh tem perature or protection
of pressure
Is tem perature
protective sw itch K1
open
Is tem perature
protective sw itch K1
open
Is it k1 or K 2 open
?
Is it k1 or K 2 open
?
Possible reason
1.
The w ires is loose to K
1
2.
A ir or other gas in the refrigerant
.
3.
H eat exchanger is dirty
4.
O utdoor fan or fan blade is defective
5.
O utdoor unit is in bad ventilation
6.
Refrigerant is leakage
Possible reason
1.
The w ires is loose to K
1
2.
A ir or other gas in the refrigerant
.
3.
H eat exchanger is dirty
4.
O utdoor fan or fan blade is defective
5.
O utdoor unit is in bad ventilation
6.
Refrigerant is leakage
Y ES
Is pressure protective
sw itch K2 open
Is pressure protective
sw itch K2 open
Possible reason
1.
The w ires is loose to K
2
2.
A ir or other gas in the refrigerant
.
3.
H eat exchanger is dirty
4.
O utdoor m otor or fan blade is defective
5.
O utdoor unit is in bad ventilation
6.
Refrigerant is too m uch
Possible reason
1.
The w ires is loose to K
2
2.
A ir or other gas in the refrigerant
.
3.
H eat exchanger is dirty
4.
O utdoor m otor or fan blade is defective
5.
O utdoor unit is in bad ventilation
6.
Refrigerant is too m uch
Y ES
Summary of Contents for YEFE BZSM-MOW1 Series
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Page 18: ...Specifications Page 14 YUFE60BYTM MS 1 R S C YUFE60BYSM MS 1 R ...
Page 24: ...Product Features Page 20 ...
