Specifications

Maintenance and service | 41
6 720 644 887 (2014/11)C 1210 ES/ESC
7.7 Control board diagnostics
1. Press ON/OFF button into ON.
2. Press and hold simultaneously buttons or and for 3
seconds, until display reads P2.
3. Press to enter P2 adjustment. The current setting will appear on
the display. If not, repeat process.
4. Press and release the button on the control panel until the
display reads 'P4'. You are now in the diagnostic mode of the control
board.
5. When the display reads 'P4', press and release the button once
again and the display should read 'E'.
6. Use the and button on the control board to cycle through
different diagnostic modes available.
7. Once in the selected diagnostic mode of your choice, press and
release the button to display the diagnostic information.
EXAMPLE: to read the flow rate in gallons per minute while the unit is
flowing water, cycle to the '3d' mode and press the button. A
reading of 25 on the display would indicate the heater is reading a flow
rate of 2.5 gallons/minute.
8. Once the information is obtained, press the button again to
return to the diagnostic mode menu and scroll to addition diagnostic
information.
9. Press ON/OFF button to turn OFF the appliance and back ON again to
return heater to normal function.
7.7.1 Working hours
To see how many hours the appliance has worked, please enter the
“Diagnostic menu” (chapter 7.7);
▶ Select the sub-mode “H0”.
Write the number that shows in the display.
▶ Select the sub-mode “H1”.
Write the number that shows in the display.
▶ Select the sub-mode “H2”.
Write the number that shows in the display.
After checking the sub-modes H0, H1 and H2, introduce the values in
the table below;
Example:
Calculation of number of working hours,
7.7.2 Number of cycles
To see how many cycles the appliance has done, please enter the
“Diagnostic menu” (chapter 7.7);
▶ Select the sub-mode “C0”.
Write the number that shows in the display.
▶ Select the sub-mode “C1”.
Write the number that shows in the display.
▶ Select the sub-mode “C2”.
Write the number that shows in the display.
After checking the sub-modes C0, C1 and C2, introduce the values in a
table as the example;
Example:
Calculation of number of cycles (1 cycle = 1 ignition),
Diagnostic menu
E Entry/Exit into sub-modes
0d Heat exchanger water temperature
1d Inlet water temperature (°F)
2d Outlet water temperature (°F)
3d Water flow (gallons/min)
4d Bypass control monitor (°F) [0d - 2d]
5d Fan speed (Hz)
6d Burner power (%)
7d Maximum power (kW)
8d Back flow temperature (°C)
9d Exhaust temperature (°C)
1F Most recent error/failure
2F 2nd most recent error
3F 3rd most recent error
4F 4th most recent error
5F 5th most recent error
6F 6th most recent error
7F 7th most recent error
8F 8th most recent error
9F 9th most recent error
10F 10th most recent error
1P* Appliance type - Cd (Condensing)
Appliance type - nC (Non condensing)
2P* Appliance power - 210/ 225 (kBTU)
3P* Temperature range - H (100-140°F)
Temperature range - C (100-180°F)
H0 Numbers of hours - mode 0
H1 Numbers of hours - mode 1
H2 Numbers of hours - mode 2
C0 Number of cycles - mode 0
C1 Number of cycles - mode 1
C2 Number of cycles - mode 2
Table 36 * Settings define from factory
+
P
P
P
+
+
P
P
P
Working hours
Number in H0 ______ _______ +
Number in H1 ______ (X 100) = _______ +
Number in H2 ______ (X 10 000) = _______
(H0 + H1 + H2) = Total of hours __________
Table 37
Working hours
Number in H0 60 60 +
Number in H1 5 (X 100) = 500 +
Number in H2 0 (X 10 000) = 0
(H0 + H1 + H2) = Total of hours 560
Table 38
Number of cycles
Number in C0 40 40 +
Number in C1 6 (X 100) = 600 +
Number in C2 1 (X 10 000) = 10 000
(C0 + C1 + C2) = Total of cycles 10 640
Table 39