Error Codes - Vesta VRC-80 User Manual

Error Codes

If an error code appears on the digital display, refer to the following chart for the reason, and a possible remedy for the situation.
Error Code
A2
A3
A4
A5
A6
A7
A8
AA
AB
AC
AD
AE
E0
E1
E2
E3
E4
E7
EF
Please contact original installer, licensed professional, or VEATA DS technical support at 1-800-761-0053
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User Manual
Cause
Abnormal operation: FAN
Abnormal operation: Pump
Overheating of heat exchanger
Low water pressure
Ignition error
Abnormal operation: gas valve relay "open"
Abnormal operation: flame detection
Overheating
Abnormal operation: heat exchanger temperature sensor
Abnormal operation: DHW temperature sensor
Clog of condensate trap
Blockage of flue Pipe
Abnormal operation: Outdoor temperature sensor
Abnormal operation: Exhaust temperature sensor
Abnormal operation: Exhaust temperature overheating
Abnormal operation: Return water temperature sensor
Abnormal operation: Pressure sensor
Abnormal operation: gas valve relay "Close"
Abnormal operation: eep-rom error
Self-diagnosis/Action
• Clean the intake air flter.
• Check the fan connector.
• Contact technical support.
Contact technical support.
• Turn off the system for at least 30 minutes, and then restart it.
• Contact technical support.
• Water supplementation of manual
• Contact technical support.
• Ensure that the main gas supply valve is open.
• Contact technical support.
• Turn off the main gas valve.
• Contact technical support.
• Turn off the main gas valve.
• Contact technical support.
C ontact technical support.
C ontact technical support.
C ontact technical support.
C ontact technical support.
• Clean the vent terminal.
• Contact technical support.
• Check the outdoor temperature sensor wiring connection.
• Contact technical support.
• Check the exhaust temperature sensor wiring connection.
• Contact technical support.
Contact technical support.
Contact technical support.
Contact technical support.
Contact technical support.
Contact technical support.