andrews CWH 30/201, Operating Instructions Manual

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End user 17 MAXXfl o EVO
2.8 ERROR MESSAGES
If the heater controls are unable to operate the gas burner or it detects a undesirable condition, the controls will put
the heater into a “lockout” mode and the heater may be prevented from operating again, until manually reset. If the er-
ror detected is a minor one, the controls will allow the heater to operate normally, but in either case an error message
symbol will be displayed on the top of the GUI display and a text explanation will be displayed on the home
screen in the Information menu. Any inportant messages aff ecting the operation of the heater should be displayed
instead of the normal “Home” screen.
The error may need to be cleared before the heater will function again. Viewing the info page menu will provide the
error detail (see section 2.10 in this manual for possible error codes). Press the RESET button (located to the left of
the GUI display) and provided the error condition has been corrected the heater will run through the ignition sequence
again.
A Lockout condition should not be repeatedly reset. If the condition persists then a qualifi ed repair
engineer should be consulted.
Example :
In this example the heater has gone into lockout mode, because the primary system pressure has exceeded 9.0 bar.
The resolution would be to rectify the overpressure condition and reset the error to restart heater operation again (see
below)
Once the causes of an error have been rectifi ed, the lockout is cleared by accessing the reset switch on the front of
the heater. A press of the reset switch of between 1 and 3 seconds will be suffi cient to reset the heater controls.
Reset rocker switch
A full list of error codes is provided in Section 2.10
Error
322: Water Pressure 3 too high