Installation & Servicing Instructions ATAG Q-Series
42
18 Error indication
A detected error is indicated on the display by means of blocking or error messages.
A distinction should be made between these two messages due to the fact that bloc-
king can be of a temporary nature, however, error messages are xed lockings. The
control will try its utmost to prevent locking and will temporarily switch off the unit by
blocking it. Hereunder is a list of some messages.
Blocks with a number in the last 2 positions.
Block 01:
External safety contact cut off
Block 11:
Maximum T of ow and return sensor in central heating has repeatedly been exceeded. Du-
ring the block normal operation of the hot water supply is possible. The pump continues to operate
at minimum capacity during the block.
Block 12:
Maximum T of ow and return sensor in domestic hot water has repeatedly been exceeded.
During the block normal operation of the central heating installation is possible. During the block the
pump continues to operate at minimum capacity.
Block 60:
Incorrect parameter setting of the minimum or maximum power.
Block 67:
A T has been detected between ow and return sensor whereas the burner is not in operation.
After the T has disappeared the block will disappear.
Block 80:
Maximum ue gas temperature has been exceeded (if present). The block will not be cancelled
until the ue gas temperature has arrived below the temperature.
Block 81:
The ue gas sensor is not connected although it was connected to the control. The burner is
blocked until the ue gas sensor is reconnected.
Block 82:
The ue gas sensor has short-circuited, heat requirement blocked and pump capacity at mini-
mum.
Block 85:
The control has not detected a water ow. The venting cycle is started. If during this cycle water
ow is detected, the venting cycle is ended and the burner is released.
Error with a number in the last two positions.
Error 00: Poor ame-forming
Error 01: short-circuit of 24 volt circuit
Error 02: no ame-forming
Error 04: adjustment or error for voltage interruption
Error 05: adjustment
Error 12: fuse 24 volt/3AT faulty
Error 18: maximum ow temperature exceeded
Error 19: maximum return temperature exceeded
Error 28: number of revolutions not reported back from fan
Error 69: no or incorrect display
Error 80: maximum ue gas sensor temperature exceeded
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