Eeprom Failure - Haier MRVII-S AU282FHERA Design, Installation & Maintenance Instruction

2.Sensor failure
Are connectors of sensor properly
connected?
yes
Are resistance and temperature
characteristics of sensor
acceptable?
yes
Check PCB and replace

3.EEPROM failure

EEPROM chip installed firmly
yes
Is the PCB poorly
w elded?
no
If chip is broken?
no
Check PCB and replace
4. Over current protection
Check if the compressor current
is more than the trip current
Check the wiring
condition
Replace the power module
MB FRIGO Grupa d.o.o., Bani 81, 10010 Zagreb, tel: 01/66 08 002, fax: 01/66 08 005, info@mbfrigo.hr, www.mbfrigo.hr
no
Reconnect
no
Replace sensor
no
Reinstall in right direction
yes
Normal
yes
Replace chip
yes
no
no
Re-wire as the wiring diagram
yes
Check the system, fan motor,
EEV, valve, Te, Tc sensor etc.
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