Kelvinator KGC20BLA, User Manual

Kelvinator gas continuous flow hot water systems

  troubleshooting    11

Troubleshooting

Temperature and amount of hot water

Problem

Possible solutions

It takes a long time for hot water to 
reach the fixtures. 

The time it takes to deliver hot water from the water heater to your fixtures 
depends on the length of piping between the two. The longer the distance or 
the bigger the pipes, the longer it will take to get hot water. 

The water is not hot enough

If a tempering valve is installed, is it set too low or malfunctioning?  
Are the cold water and hot water lines cross connected?
Is the gas supply valve fully open? 
Is the gas line sized properly? 
Is the gas supply pressure enough?   
Is the set temperature set too low?    
Is the combustible air inlet or exhaust outlet blocked?

The water is too hot

Is the set temperature set too high? 

The hot water is not available when a 
fixture is opened.

Does the water heater have a 240V 50Hz power supply available?
If you are using the remote controller, is the power button turned on? 
Is the gas supply valve fully open? 
Is the water supply valve fully open? 
Is the filter on cold water inlet clean? 
Is the hot water fixture sufficiently open to draw at least 3.0l/min through the 
water heater? 
Is the water heater frozen?
Is there gas available to the water heater and (if applicable) does the gas 
storage tank have enough gas in it?

The hot water gets cold and stays cold

Is the flow rate enough to keep the water heater running? 
Is the gas supply valve fully open? 
Is the filter on the cold water inlet clean? 
Are the fixtures clean of debris and obstructions? 

Fluctuation in hot water temperature.

Is the filter on the cold water inlet clean? 
Is the gas line sized properly? 
Is the supply gas pressure enough? 
Are the cold water and hot water lines cross connected?

Water heater

Problem

Possible solutions

Burner does not ignite when water 
goes through the water heater.

Is the flow rate over 3.0l/min?  
Is there a 240V 50Hz power supply available to the water heater?
Are the cold water and hot water lines cross connected or reversed?
If you use the remote controller, is the power button turned on? 

The fan motor is still spinning after 
operation has stopped. 

This is normal. After operation has stopped, the fan motor keeps running for 
15 – 75 seconds in order to re-ignite quickly, as well as push all exhaust gas 
out of the flue.  

White vapour clouds are coming from 
the hot air outlet of the water heater 

It is normal to see water vapour clouds or steam coming from the hot air outlet 
of the water heater especially during cold and wet days.

Remote controller (optional)

Problem

Possible solutions

Remote controller does not display 
anything when the power button is 
turned on. 

Press the ON/OFF button. 
If the lamp does not light:
Make sure the water heater has power supply. 
Make sure the connection to the water heater is correct.

An ERROR code is displayed

Call a service technician.

Remote  controller  can  not  change 
the set temperature.

Is priority lamp lit? If it is not, press  the priority button after closing all  
hot water taps.