BoilerFaultCodes 8
controlled stop
Remeha Avanta 18V Fault codes & diagnostics
17 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Regular Natural Gas 18 kW 2007-2015 Discontinued
GC Number 41-288-06
Replaced by: Quinta Ace
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Severity at a glance
Each cell = one fault code. Hover to identify. 17 Unrated
Fault codes
All 17 documented codes
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9
blocking mode
é0
Flow or return sensor fault. Short circuit in the flow, return or boiler temperature sensor. Defective or not (properly) connected flow, return or boiler temperature sensor.
é1
Flow temperature is higher than the set maximum temperature. Insufficient water. No through flow. Too much air in the system. Deviation in the flow or return temperature sensor.
é2
Return temperature is higher than the flow temperature. Insufficient water. No through flow. Too much air in the system. Sensors not wired correctly. Pump operating in wrong direction. Flow and return connections crossed. Deviation in the flow or return temperature sensor.
é3
Control unit or earth fault. Mains supply not correctly earthed. Control unit faulty.
é4
More than 5 start attempts without any flame formation. No ignition spark. A spark but no flame.
é5
No ionisation or ionisation failure more than 5 times during one heat demand.
é6
Unwanted flame formation
é7
No water in the boiler or the pump is not working
é8
Fan fault
é10
No through flow during venting cycle
é11
Air box temperature to high
é13
Heat-exchanger fuse protection has responded; replace the heat exchanger after finding and solving the cause.
é43
Parameter limits
é44
Parameter check
é45
Default parameters