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Technical Manual for DGI
- 48 -
5.4
Fault/possible cause/measures
Fault
Possible cause
Measures
01
Power failure
Explain and give directives
02
Power plug is not fully plugged in
Explain and give directives
03
No power on receptacle: receptacle power
switch is not on or bad contact
Explain and give directives
04
Power switch on operation panel is not on
Explain and give directives
05 Bad
electric
connection
Re-connect
06 Damaged transformer
Replace
07
Open circuit of a certain signal wire between
operation panel and main control board
Re-connect
08
Operation panel is damaged
Replace
09
Main control board is damaged
Replace
Turn on hot
water tap,
water runs out,
but the
machine
doesn’t work;
i.e. the fan
doesn’t start
pre-purging
and there’s no
ignition sound
and any
displays
99
Other causes
Other causes
01
Reversed connection of cold and hot water
pipes
Re-connect water pipes
02
Water flow rate is lower than starting flow
rate, lower water pressure
Explain and give directives
03
Water flow rate is lower than starting flow
rate, water switch is damaged
Explain and give directives
04
Water flow rate is lower than starting flow
rate, water meter is blocked
Explain and give directives
05
Water flow rate is lower than starting flow
rate, improper operation of mixing water
valve
Explain and give directives
06
Water flow rate is lower than starting flow
rate, blocked pipelines caused by water
deposit in heat exchanger
Clean
07
Water flow rate is lower than starting flow
rate other reasons causing external water
pipe block
Clean or replace
08
Fault of water flow sensor: blocked rotor
Clean or replace
09
Fault of water flow sensor: hall sensor is
damaged
Replace
10
Fault of water flow sensor:bad contact with
control board
Reconnect
11
Main control board is damaged
replace
Turn on hot
water tap,
water runs out,
but the
machine
doesn’t work;
i.e. the fan
doesn’t start
pre-purging
and there’s no
ignition sound.
There’s
displays on
screen, but not
fault indication
99
Other causes
Other causes
Turn on hot
water tap,
water runs out,
01
Distance between ignition needle and
ignition cathode is too big or too small; and
the standard value is 5±1mm
Re-adjust
Содержание Fi7 16L FF
Страница 8: ...Technical Manual for DGI 8 z Dimension drawing 1 3 2 M2 10L FF ...
Страница 9: ...Technical Manual for DGI 9 z Dimension drawing Same to M1 10L FF 1 3 3 Fi7 16L FF ...
Страница 10: ...Technical Manual for DGI 10 ...
Страница 11: ...Technical Manual for DGI 11 1 3 4 Gi7S 11L 16L FFI ...
Страница 12: ...Technical Manual for DGI 12 ...
Страница 13: ...Technical Manual for DGI 13 1 4 Specification list 1 4 1 M1 10L FF ...
Страница 14: ...Technical Manual for DGI 14 1 4 2 M2 10L FF ...
Страница 15: ...Technical Manual for DGI 15 1 4 3 Fi7 16L FF ...
Страница 16: ...Technical Manual for DGI 16 1 4 4 Gi7S 11L 16L FFI ...
Страница 17: ...Technical Manual for DGI 17 1 5 Wiring diagram 1 5 1 M1 M2 10L FF ...
Страница 18: ...Technical Manual for DGI 18 1 5 2 Fi7 Gi7S ...
Страница 46: ...Technical Manual for DGI 46 5 2 Main control board of constant temperature machine type Fi7 Gi7S ...