Camec IWH-1.5 Installations- und Betriebsanleitung - Seite 7
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Troubleshooting
The IWH-1.5 is equipped with a microprocessor based self-diagnostic system. Possible
errors are displayed on the LED display of the remote control.
Failure code shown in the display
E1
Pilot flame doesn't light up after 10 sec.
E4
Flame controller delivers a signal before water tap is opened.
E5
Broken circuit of NTC
E6
Short circuit of NTC or hot water exceeds 85℃
E7
Flameout for many times because of unstable ionization signal.
E8
When power is ON, the water flow is ＞3 l/min.
E9
Failure of pressure switch
EA
Damaged NTC
EB
Damaged CPU or circuit
ED
Memory error of CPU
EE
Damaged CRC
Heater does not start when the water turns on
1.
Be sure all electrical connectors are secure and the polarity is correct.
2.
Be sure power is on and panel breaker is not tripped.
3.
Check electrical contacts in electronics drawer. Be sure the connector with "+" and
"-" power wire is plugged into board. Using a voltmeter, check for 12 Volts on this
connector.
4.
Confirm the water heater is switched on via the ON/OFF button on the remote control.
5.
Be sure there is a battery in the system. Never connect the heater directly to a power
converter. Some converters have circuits that are not pure DC.
6.
Be sure the gas valve at the tank is "On" and there is gas in the tank.
7.
Be sure that the water flow is at least 2.5 l/minute.
8.
If you have changed the gas bottle it takes a while until the gas lines are filled with
gas and the gas reaches the water heater.
If E1 is displayed, there is no flame detection. Close the water tap for a few
seconds and open it again. Depending on the length of the gas line, it may take
several attempts until you have ignition.
When you have flame ignition, you will see the current water temperature rising in the
display.
9.
If the water temperature is not reaching the desired temperature, you may have a too
high water flow or you have extremely cold incoming water. Reducing the water flow
will rise the outgoing water very quickly to the desired temperature.
7