Error messages (3 of 3) – tekmar 274 Boiler Control User Manual
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Error Messages (3 of 3)
Error Message
Description
VIEW
PRIMARY PUMP P1 & P2 FAILURE
Both the primary pump P1 and P2 have failed.
VIEW
PRIMARY PUMP P1 FAILURE
The primary pump P1 has failed. The Prim P1 relay closed, but a flow proof demand was not
detected before the proof demand delay time elapsed.
VIEW
PRIMARY PUMP P2 FAILURE
The primary pump P2 has failed. The Prim P2 relay closed, but a flow proof demand was not
detected before the proof demand delay time elapsed.
VIEW
PUMP PROOF DEMAND ERROR
The primary pump has been turned off, but the pump proof demand remains after 4
minutes.
VIEW
COMBUSTION AIR DAMPER FAILURE
The combustion air damper has failed. The C.A. relay closed, but the control did not detect
a damper proof demand before the proof demand delay time elapsed.
VIEW
DAMPER PROOF DEMAND ERROR
The combustion air damper has been turned off, but the damper proof demand remains after
4 minutes.
VIEW
BOILER RETURN SENSOR SHORT CIRCUIT
Due to an short circuit, the control failed to read the boiler return sensor. The control will
continue to operate normally. Locate and repair the problem as described in the Data Brochure
D 070. The error message self clears once the error condition is corrected.
VIEW
BOILER RETURN SENSOR OPEN CIRCUIT
Due to an open circuit, the control failed to read the boiler return sensor. The control will
continue to operate normally. Locate and repair the problem as described in the Data Brochure
D 070. The error message self clears once the error condition is corrected.
VIEW
BOILER ALARM ERROR
The boiler supply temperature did not increase within the boiler alarm time. To reset the alarm,
press and hold the up and down buttons for 5 seconds while viewing this error message.
VIEW
DHW ERROR
A DHW sensor and a DHW demand have been applied at the same time. The DHW tank
will not be heated until the DHW Demand signal is removed. The error message self clears
once the condition is corrected.