23
The following cases are not damage:
Problem
Possible Cause and Recommended Action
The ventilation releases white
smoke.
The room temperature is too low, so the
exhaust gas is condensed into white fog when
meets the outdoor cold air.
Hot water output becomes
cold because of the low water
flow.
When the water flow is low (below the start-up
water pressure), the water heater will
automatically shut off and the output water
become cold. Therefore, do not use the water
heater if the water flow is too low.
The water heater shuts off
suddenly after being used for
20 minutes continuously.
This water heater has timing protection function
after 20 minutes of continuous use, and this
function will automatically extinguish flame.
Turn the hot water valve off; wait a moment;
and turn the water heater on again to re-start
the ignition.
Check the details below if the problems occurs
Problem
Possible Cause and Recommended Action
Water heater
cannot be
turned on.
• Gas inlet valve is closed.
Open the main gas inlet valve.
• There is air in the gas
pipeline.
Switch on and then switch off
the water outlet valve several
times until the ignition starts.
• Power is not switched on.
Switch on the power.
• Gas pressure is improper.
Contact
MODENA
Customer
Care to check the pressure
regulator valve.
• Water
supply
(inlet)
pressure is insufficient and
the water inlet valve is not
fully opened.
Fully open the water inlet valve
and contact
MODENA
Customer
Care to check water pressure.
• Flue pipe is blocked and air
pressure is too high.
Contact
MODENA
Customer
Care to remove debris and re-
start the water heater after the
air pressure becomes low.
• There is an internal failure.
Contact
MODENA
Customer
Care
PART 6: TROUBLESHOOTING
