Overload Current Protection Diagnosis And Solution - York YEFE BZTM-MOW1 Series Service Manual

5.10 Overload current protection diagnosis and solution

Description: An abnormal current rise is detected by checking the specified current detection circuit.
Recommended parts to prepare:
• Power supply problems.
• System blockage
• Faulty PCB
• Wiring mistake
• Compressor malfunction
Troubleshooting and repair:
C heck the com pressor resi stance val ues.
 Page 100 
C heck the pow er suppl y.
I s i t i n w orki ng order?
Y ES
C heck system for bl ockages.
D o any exi st?
Y ES
A re they w i thi n acceptabl e
param eters?
Y ES
C heck the connecti ons and w i res.
A re they properl y connected?
Y ES
C heck the reactor.
I s i t i n w orki ng order?
Y ES
Repl ace the outdoor uni t.
N O Stop the uni t.
N O C l ear the bl ockage.
N O Repl ace the com pressor.
Ensure proper connecti ons or
N O
repl ace the w i res.
Repl ace the outdoor
N O
el ectroni c control box.