Magikist HWG20, Instruction Manual

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7.0 P
RO
S
AFE
IIII
ERRORS & WARNINGS
7.1 ERROR CONDITIONS
The P
RO
S
AFE
II
control indicates error conditions via
the indicator lights and the temperature setting display.
Error conditions require immediate attention in order to
ensure continued operation of the heater. Whenever
an error condition is present, the heater will not fire.
Some error conditions lockout the operation of the
heater until the error is cleared by a power down/up
sequence. The alarm buzzer sounds on all errors.
Should an error condition arise, the indicator light that
relates to the error condition will flash on and of at a
fast rate. In addtion, the temperature setting display wil
no longer show the desired outlet water temperature,
but instead will display a flashing error code Exx where
xx is the error code.
Please see section 11.0 TROUBLESHOOTING for
diagnosing error conditions.
7.2 WARNING CONDITIONS
The P
RO
S
AFE
II
control indicates warning conditions
via the indicator lights. Unlike error conditions, warning
conditions do not prevent the heater from firing.
Warning conditions should be attended to promptly in
order to ensure the continued safe operation of the
heater.
Should a warning condition arise, the indicator light
that relates to the warning condition will flash on and of
at a slow rate.
Please see section 11.0 TROUBLESHOOTING for
diagnosing warning conditions.
Temperature Setting
Display Flashes Indicator Light
Flashing Fast
Description
Requires Power Down/Up
Sequence to Clear
E10 FLUE STATUS Problem with communication to flue
sensor (open). No
E11 FLUE STATUS Problem with communication to flue
sensor (short). No
E15 FLUE STATUS Flue overheat condition. Yes
E20 THERMOSTAT Problem with communication to
temperature sensor (short). No
E21 THERMOSTAT Problem with communication to
temperature sensor (short). No
E30 REQUEST FOR
HEAT Problem with OUTPUT driver (open). Yes
E31 REQUEST FOR
HEAT Problem with OUTPUT driver (short). Yes
E59 (none) Problem with internal memory. Yes
Indicator Light
Flashing Slow
Description
FLUE STATUS Temperature in flue is near or
below freezing. Water in heater
coil is in danger of freezing and
damaging coil.
FLOW ON Flow has been asserted for more
than 10 minutes.
Table 7.1 - ERROR CONDITIONS
Table 7.2- WARNING CONDITIONS