HTW -CLE-11NOXUAGLP-K Manual De Usuario E Instalacion página 50

● Advanced error code display for more convenient operation and maintenance.
Error codes:
Temperature sensor error
Outlet temperature sensor error
Water flow over maximum value
Exhaust obstruction
Wrong connection of air pressure switch
APS has no pressure
Overheat protection
Defective inlet temperature sensor
Thermostat error
Flameless
Gas valve connection error
Wrong flame signal
Gas valve leak
No sign of flame
● Common failures and treatment.
Phenomena
Causes
The gas valve is not
open
Gas valve is half open
The gas pipes are
full of air
High
Inappropriate
gas pressure
Low
Freezing
Inlet with inadequate
hydraulic pressure
Burner is blocked
A0
A7
CA
CF
C4
C6
E1
E2
E9
EA
EE
E7
FA
EC
22
Treatment
Fully open the gas valve or
replace with a new gas container
Fully open the gas valve
Open and close the water outlet
valve continuously several times
until ignition is achieved
Have maintenance personnel
check the gas pressure
regulating valve
Contact maintenance personnel
Ask maintenance personnel
to check hydraulic pressure
Contact maintenance personnel