Mira Advance ATL J97A Installation Manual page 29

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Incoming water temperature too high.
1. Check inlet water temperature is not too
high. (E.g. pipework runs alongside hot
pipe).
2. Replace Flow Valve.
3. Replace Control PCB / Cover.
4. If the unit is an 'Extra' or 'Flex Extra' model,
replace the Drain Pump PCB.
Flow Valve Assembly is disconnected or faulty.
1. Check all internal cable connections.
2. The shower or a section of the supply pipe
may be frozen.
3. Replace Flow Valve.
4. Replace Control PCB / Cover.
False flow reading.
1. Replace Flow Valve.
Safety relay failure.
1. Check relay contacts. (Debris on contacts
or welded closed)
2. Check Ribbon Cable Connection.
3. Replace Relay Board.
4. Replace Control PCB / Cover.
5. Replace Thermal Switch.
Internal Electrical Supply problem / Faulty
Control PCB or Relay Board. Appliance has been
incorrectly shut down.
1. Push bleed button to flush the heater tank.
2. Replace Relay Board & Control PCB /
Cover TOGETHER.
Advise the user on correct start/stop procedure
and general operation of the shower, refer to
User Guide.
Outlet Sensor faulty or disconnected from Relay
Board or faulty Control PCB.
1. Check Outlet Sensor connection to the
Relay Board.
2. Check Ribbon Cable Connection.
3. Replace Control PCB / Cover.
4. Replace Relay Board.
5. Replace Heater Tank.
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