Noritz NH199-DV Manuel D'information De L'utilisateur page 21

(Continued)
White smoke comes out of the
exhaust vent on a cold day.
The boiler water is leaking from the
safety relief valve.
PRIORITY 1 continuously operates
and does not switch to PRIORITY 2.
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Check for an Error Code on the Operation Panel
If there is a problem with the unit, a numerical error code will
flash on the operation panel.
If this occurs, take appropriate measures as listed below.
When an error code appears, the display and the operation
light will flash together.
Error Code
Ignition error
Device combustion
abnormality
Capacity is dropped for
safe operation due to
intake/exhaust abnormality
Device combustion
abnormality
Contact Noritz America if:
• Any other error code appears.
• An error code is indicated again after the above actions were followed.
• There are any other questions.
• This is normal. The white smoke is actually steam.
• There is a possibility that air is leaking from the expansion
tank. Contact your installer or a qualified service technician.
• The set temperature of the aquastat controlling the hot-
water tank may be higher than the set temperature of this
unit. Contact your installer.
Cause
1. Set the Power On/Off button and heating operation to Off.
2. Check the items below and take measures if necessary.
3. Set the Power On/Off button and heating operation to On to
In the case the unit cannot be reset after setting the Power
On/Off button to Off and back to On, or when the error
display persists even when resetting the boiler, service
must be performed. Contact Noritz America to arrange for
a qualified service technician.
The unit can continue to be used with a drop in capacity;
however, inspection is recommended for safety.
Service must be performed. Contact Noritz America to
arrange for a qualified service technician.
Is the gas valve open?
Has the gas meter cut off the supply of gas?
In the case of LP gas, has the gas run out?
start heating operation. Operation is normal if there is no display.
Flashing
(Ex.: 113)
Action
21