Mitsubishi Heavy Industries ESA30EH Series User Manual page 72

■ A list of error code (Continue)
Remote
LED on heat source unit
controller
Error code Green
E61 Keep flashing
E63 Keep flashing
E64 Keep flashing
E89 Keep flashing
No hot water comes out (1) Keeps flashing
No hot water comes out (2) Keeps flashing
No hot water comes out (3) Keeps flashing
Anomalous sound
Keeps flashing
and vibration (1)
Anomalous sound
Keeps flashing
and vibration (2)
■ Maintenance code
Maintenance code is the signal for prompt service and maintenance, not to show anomaly.
7-segment display RC display
No. No.
Compressor operation hours
oPE-1 M1
oPE-2 M2
oPE-3 M3
Water pump operation hours
oPE-11 M11
oPE-12 M12
oPE-13 M13
Setting error
oPE-20 M20
oPE-21 M21
oPE-22 M22
Error information
oPE-30 M30
oPE-32 M32
oPE-33 M33
oPE-34 M34
oPE-35 M35
oPE-40 M40
7-segment
display
Red
1-time flash E61-1
2-time flash E61-2
3-time flash E61-3
1-time flash E63
1-time flash E64
1-time flash E89
Stays off Normally
Stays off Normally
Stays off Normally
Stays off Normally
Stays off Normally
Items
When the cumulative operation hours of compressor has elapsed 5,000hr
since the last maintenance, and it is between 4,900hr and 5,100hr.
When the cumulative operation hours of compressor
has elapsed 10,000hr since the last maintenance.
When the cumulative operation hours of compressor
has elapsed 30,000hr since the last maintenance.
When the cumulative operation hours of water pump has elapsed 5,000hr
since the last maintenance, and it is between 4,900hr and 5,100hr.
When the cumulative operation hours of water pump
has elapsed 10,000hr since the last maintenance.
When the cumulative operation hours of water pump
has elapsed 20,000hr since the last maintenance.
Setting error for type of cylinder
Setting error of heat pump unit model
Setting error of master/slave units
Detection of AF error
Detection of drying up water
Detection of disconnection of cylinder water temp sensor
Detection of suspension of water supply
Detection of water pump error
An error has occurred to either unit at master
and slave operation.
Normal units are in automatic backup
operation.
· Message of [disconnection of cylinder
temperature sensor]
Hot water temperature sensor on
the cylinder (Tht-1 to Tht-9) may be
disconnected.
−70−
Contents of inspection
Communication error between master unit and slave unit 1
Communication error between master unit and slave unit 2
Communication error between master unit and slave unit 3
Emergency stop , AF anomaly (set at adding active filter)
Water pump anomaly (no operation)
Water pump anomaly (excessive operation)
Communication error between control PCB and CPU
See troubleshooting
See troubleshooting
See troubleshooting
See troubleshooting
See troubleshooting
Synchronizing with the timing of alarming by
the simple remote monitoring equipment
Synchronizing with the timing of alarming by
the simple remote monitoring equipment
Check setting of SW3-3 is OFF for unvented cylinder
Kept SW4-1, -2, -3, -4 "OFF" (Factory default)
Check setting of SW4-7 and -8
But E63 is not displayed
It is always displayed at test run
Please service the unit which an error has
occurred according to error code.
· Check the connection and the
characteristics of all hot water temperature
sensors on the cylinder and if there is a
problem, connect it securely or replace it.
· If no problem on sensors, replace control
PCB.
Remarks